1. a jet pump of the type adapted for use with an outboard boat motor to drive a boat having a bottom through water comprising a flow through casing having a downstream end portion which is tapered outwardly in the downstream direction, a mixed impeller adapted to rotate about its axis, a substantial portion of said impeller … Feel the Extreme MID-RANGE 25-115HP. Also have fitted the new top loader in and will install after final assembly of bowl and final clearance … Tim is continuing to provide the quality Berkeley parts product line through his business in La Habra, California. Last one. When the water’s too shallow for propeller-driven boats, turn to a Mercury® Jet Outboard or Sport Jet… The standard Kodiak Jet is available in three models: In the year 2002, Kodiak modified their model numbers to: Model number example:  231554-92 = model 231 (three stage), the first two. For you folks running with a lot of horse power, the proper impeller cut and proper intake hardware for your application is a must. Precision Jet Drive aluminum impellers are the only impellers on the market that are CNC machined from a solid bar of forged aircraft quality aluminum.  These impellers are heat treat hardened and balanced.  They come perfectly smooth and finished right out of the box.  These impellers are CNC machined in two pieces, the hub and the shroud. Need some info/advice about these outboard jet motors.....am considering getting a 17-18 foot all aluminum tunnel hull jet for running up rivers and creeks, places you wouldn't want to take a conventional prop boat. or Best Offer. Its compact, light-weight SOHC four-cylinder, in-line design features a single throttle valve and long-track induction system. This impeller is a very hard loading stainless steel impeller made of 17-4 PH S/S. Berkeley Cast Aluminum     $399 a cut, The new Berkeley 17-4 PH XB Investment Cast stages using a #5 pitch impeller, and the last stage using a #4 impeller with a 92mm Pozzi nozzle. Then you can get a pair of pliers on that nut and remove it. They work especially well when used with impellers that are cut down to match specific cam profile and RPM requirements. Next the damaged impeller is quite visible. Few dings in the bowl from shrapnel. Unlike the cast aluminum, Mag/bronze and stainless steel impellers are able to handle greater horse power loads and high speed unloading conditions. Needless to say, it did not work. If you want to stretch the limits of cast impellers, that is up to you. The … I call this a stuffer skirt. Call Jim for options and pricing. It depends a lot on what kind of a jet boater you are, as to how much you can over power cast aluminum impellers and get away with it. NOTICE TO ALL JET BOATERS:  As of March 2007, Legend Jet Drive is no longer in business.  Legend Jet Drive has been bought by American Turbine.  I talked to Ron at A/T and asked if he was going to keep the Legend impeller profile, and he informed me that he was going to run some tests before he makes his decision.  In the meantime, these impellers will be available until the stock runs out.  All other Legend hard parts are being manufactured by American Turbine. Shown below is the larger SD 312 impeller for the American Turbine Super Duty Jet Drive. Or, to put it another way, a half-size larger in cut.  An A-cut is equal to an A+ on a standard impeller.  I have had no trouble using these impellers up to 500 HP.  Heritage also offers a stronger Bronze casting that works great for higher HP applications. A/T impellers run a real good profile anyway, so why not use them in your A/T jet. Four is the magic number for Yamaha Pro Anglers. For over 50 years, Outboard Jets has provided quality conversion units for outboard motors designed to allow a boat to be used in locations where a propeller … A/T also makes impellers for Berkeley, Aggressor and Legend style jets. From what I understand, the aluminum is good to 475 HP. If you happen to run, or even start up in shallow water, the impeller will suck sand and … Keeping an eye on your suction housing pressure is not a bad idea either. The remaining four impellers come in four different pitch sizes: #2 is a 22-degree pitch, #3 is a 23-degree pitch, #4 is a 24-degree pitch, and #5 is a 19-degree pitch impeller. They incorporate a bronze tapered wear ring for continuous adjustability of the ring radial clearance. Now, I know that a bunch of jet boaters out there run cast aluminum impellers at much higher HP loads and get away without troubles. These impellers are cast at American Turbine's own factory connection in Washington State.  These impellers are nicely cast with the Investment casting process.  These impellers are heat treated 356-T6 aluminum and are sharpened, balanced, and usually ready to go right out of the box.  These impellers also have a coarser front side vane angle and will load 100-200 RPM harder than the Berkeley.  I am comfortable using this impeller up to 500 HP.  I have used this impeller with great success. The clearance is approximately 1/32 of an inch (.03125). If you do use another manufacturers impeller and wish to have a stuffer, you will have to fit a stuffer plate into the A/T bowl. With these impellers, you will find that they load approximately 100 RPM harder than standard impellers. There is some off center between impeller and liner due to manufacturing tolerances so check at the closest point. Tohatsu offers an outstanding line up of four stroke outboard motors, including the 115 hp, 90 hp, 75 hp, 60 hp, 50 hp, 40 hp, 30 hp and 25 hp outboard … Shift the outboard … These impellers are much larger than the standard mixed flow impellers with an inlet ID of 7.625 inches and an overall OD of 9.750 inches. Shallow-Water Champ. However, the last method requires more work. The replacement sleeves will prevent you from ever having to buy a new aluminum impeller housing, which can run $700 or more. They are nicely finished and heat treated. Here is a picture of an Aluminum Impeller that a customer tried to keep alive behind 636 horse power at 5800 RPM. What is the clearance between impeller and liner? I know jets lose about 30% of their power after the conversion, … Operating the jet drive in waters that contain sand and gravel can … I just recently took the intake grate off my boat as i'm going to install a stompgrate .So it seemed like a good time to check the clearance between the impeller … We specialize in one thing- the watercraft pump. Title: IMPELLER SHARPENING Author: bdol Created Date: 5/27/2003 2:32:38 PM This locked up the pump once the engine shut down. 2018   INDUCER IMPELLER SUPER SALE   $300. If you have a preference for an impeller by another manufacturer, they will fit the A/T but you will give up the stuffer skirt design. Free shipping. All Rights Reserved. To remove the impeller starts by folding down the 2 flags that keep that big nut from spinning. Liner for small jet-when ordering please specify: 5 3/4" part # 287 $60.00 6" part # 855 $60.00 6"-79 CB part # 2119 $60.00, Shoe w/grill bars and bolt in liner for large jet-when ordering please specify: 6 5/8" part # 141.1 $465.00 6 7/8" part # 141.2 $465.00 7 3/16" part # 141.3 $465.00 7 3/8" part # 141.4 $475.00, Shoe w/grill bars and drop in liner for medium jet-when ordering please specify: 5 7/8" part # 31.1 $385.00 6 1/8" part # 31.2 $385.00. Welcome to Outboard Jets. This will move the impeller further down into the tapered liner to reduce the clearance. Have the impeller tightened on now, clearance is .030 at ring. The aluminum impeller calls for.03 inches of clearance be- tween its blade edge and the housing liner. johnson evinrude stamp c parts (2 c) Pre-Owned. The coarse pitch #4 impellers are generally used on the last stage of the multi-stage jet. A/T jet drives have reached speeds of 163 MPH and have run 126MPH on the white water racing circuits. The nut, … These impellers are open face, stainless steel axial flow impellers that are nicely made and very rugged.  These impellers come in various pitches and styles.  There are three different "overlap" impellers that are used on the first stage of multi-stage jets.  These impellers are designated #1 on multi-stage jets. Fri Nov 25, 2011 5:08 am. He has designed his own JBP profile in both aluminum and mag/bronze. $7.95. This is a nice design and for this reason I recommend using only A/T impellers in A/T jets. PJD Billet Aluminum Impeller      $535, PJD 1018 Steel Billet Impeller     $1675, PJD Stainless Steel Axial Flow Inducer, CNC     $425, PJD Billet Aluminum Five Vane Impeller     $535. Aggressor Cast Aluminum     $399 any cut, Aggressor Mag/Bronze     $850 when available. factory suggested clearance is 1/32". Engines like a Merc or Yamaha 90/65 Jet… In all cases I recommend a heavy duty 17-4 PH Impeller shaft to be used with these impellers. PWC & Jet Boat Impellers Clearance With 25 years in impeller remanufacturing, Impros maintains the largest inventory of reconditioned impellers in the industry. Tom at JBP no longer produces the Aggressor profile impeller. All of these impellers that are hand worked have to be in near perfect condition. Beyond that, stainless steel is the only way to go, in my opinion. These impellers are nicely cast at A/T's own foundry. I was told to run the stainless Cut Back Impeller adove 2500' elev- it would help - is this true BOAT INFO: 1992 18' SmokerCraft Alaskan 1978 175 Evinrude 100 psi 5 cyclinders 95 1 cyclinder - Jet - I think it is a medium jet pump 7 3/8 impeller Yamaha powers fourth consecutive Angler of the Year! $399. Most impeller cuts are available while the supply lasts. Note: The jet impeller is the water pump impeller on these boats. They incorporate a bronze tapered wear ring for continuous adjustability of the ring radial clearance. MAINTENANCE Check the impeller clearance by sliding a feeler gauge through the intake grate and measure the clearance between the impeller edge and liner. It is the same A/T was the first company to offer the 9.250 and 9.500 impellers. This creates a light, compact, powerful outboard … Place Cast Aluminum Impeller     $399. Jet boating community on the web. To check clearance from water inlet side, remove inlet grate. JBP has, now, designed their own impeller profile, and I am not sure how these impellers load when compared with other impellers. ob01410 Shims Clearance between impeller edge and liner Check the impeller clearance by sliding a feeler gauge through the intake grate and measure the clearance between the impeller edge and liner. Less than 1/32 of an inch is ok if the impeller … Sd309 impeller clearance. Small & Medium Jets use #782-square key $6.00 each or #1705-round key $6.00 each. In 2007 A/T came out with a new impeller that they call the HI HELIX impeller. Reworked impellers from other manufacturers are available as well. You will eventually experience catastrophic jet drive failure if you don't correct the problem. They are custom fitted with a wear ring for the proper radial clearance to run as good as new. Remove the impeller … When you need a new impeller or handling components, your impeller… Less than 1/32 of an inch is ok if the impeller does not rub. A/T Aluminum Impellers, Investment Cast/CNC for A/T jets    $425 any cut, A/T Stainless 17-4 PH Investment Cast/CNC      $1095 any cut, A/T Impellers Berkeley Style Aluminum     $425 any cut, 9.250 and 9.500 Impellers are the same price. Our 1-liter F60 Jet Drive four stroke produces 40 hp at the pump. Thrust checks out great. Less than 1/32 of an inch is ok if the impeller does not rub. While you are at it check the clearance of the impeller to the liner. Sd309 impeller clearance. Call Jim for application and sizing needs. These impellers are only offered in 17-4 PH stainless. Remove impeller adjustment shims (9 from driveshaft. clearance between the impeller edge and liner. This Impeller is made from 15-5 PH stainless steel with a reduced hub size and thinner blades. Kodiak and Hamilton jets come in a variety of models.  Listed here are the models generally used in the recreational market.  Larger drive units are available from Performance Jet for the commercial market.  Prices for these units and their parts are provided on request. IMPELLER SHARPENING.max. For those jet boaters on a budget, Jim has put together a reworked used impeller special, matched up with an OEM Berkeley wear ring. The electrical wiring circuits on the outboard … The overlapping impellers come in a #1 standard and a #1 for use with a V6 power plant.  The big block power plants (8.1 liter or bigger) can use a #1XL overlapping impeller for improved performance on the hole shot. A/T impellers for the A/T jet have a wear ring skirt on the back side of the impeller that fits into a machined surface in their bowl. There is some off center between impeller and liner due to manufacturing tolerances so check at the closest point. $199.00. ... 1 product rating - Quicksilver 23-94304 90224 Mercury Mariner Force Sport Jet Outboard Spacer. Note:  As of March of 2014 Jack Keaton retired from business and sold his company, Heritage MFG.,  to Tim Place of Place Diverter and Control. These impellers and rings will fit the SD 312 only. Note the number and placement of impeller shims. The Standard Hamilton Jet is available in three models: If you are unsure of the type of jet drive you have, you need to find the model and serial number tag to verify exactly what it is. To check clearance … Johnson Evinrude - Jet Drive Servicing Outboard Motors To Zoom in or out use: "Ctrl +/-" Windows "Command +/-" Mac. Our FourStroke jet outboards are electronic fuel injected, with a range from 25 to 80 horsepower. Impeller/Wear Ring Clearance This clearance is critical for jet pump performance. Ron Gordon owned Dominator before he designed the A/T jet drive. outboard impeller = jet pump mercury 70hp? Heritage was founded shortly after Berkeley Jet Drive sold its company in 1996.  The head of jet drive sales got together with one of his close friends and put together the business in Sacramento,  California with the goal of providing quality parts for the jet drive market.  In doing so,  Robert and Jack decided to use the slightly more aggressive Legend profile for their impeller line.  These are cast in the Buddy Bar Foundry in South Gate, California. I am comfortable using the cast aluminum impellers up to 500HP. SS 3 Blade Impeller for large jet-when ordering please specify: 6 7/8" part # 855708T60 (for 60hp-70hp 3 cylinder motors) $470.00 7 3/8 part # 1756 (shown) $470.00 7 3/8" D part # 2124 $470.00 7 3/16" part # 2220 $470.00 Also available: SS 4 Blade Impeller … Fuse Replacement IMPORTANT: Always carry spare fuses. Impros is a Personal Watercraft Impeller Repair and modification service. Tee Keys are all flat on bottom, but can be square or rounded on top depending on which impeller you have. The clearance is approximately 1/32 of an inch (.03125). These impellers … Note:  Some years ago now, Dave Jones semiretired to take some time with his family.  Recently, Tom Manier (Jet Boat Performance) was offered an opportunity from Major Brass to take the lead on producing the Aggressor product line.  Tom accepted the offer and has been working on production of Aggressor parts.  Tom calls his aluminum impellers his "signature" series.  Most parts and kits are now available.  Bowls and Bronze impellers are on the way. OEM & aftermarket repair service to stock OEM specifications. There is some off center between impeller and liner due to manufacturing tolerances so check at the closest point. If you are racing in a shallow, rocky environment and gulping a lot of air, the stainless steel or 1018 billet steel impeller will take the biggest beating. These impellers are cast at Berkeley's foundry connection.  These impellers are nicely cast, CNC machined and hardened.  The finish is good, and I am comfortable with the aluminum casting to 500HP.  Any more HP and I would suggest a stronger impeller.  Berkeley has their own stainless impeller profile.  Impellers from other manufacturers will fit as well. ©2003-2020  Performance Jet. The newer Dominator uses the A/T impeller also. Page 78 MAINTENANCE 1. Yamaha Pros swept the top four … As a builder, I have to be conservative and put my emphasis on durability. These are the inducers preferred by most racers. Don't let the weld lines fool you.  This impeller works just fine.  I am comfortable using this impeller to 650 HP and have done so very successfully with no problems so far.  PJD also offers a CNC machined axial flow inducer impeller. Berkeley style reworked impellers w/ standard wear ring and insulator   $275. The previous line of Aggressor impellers are no longer being produced. More clearance than 1/32 of an inch … But, just a word to the wise, loading, unloading and then reloading your Jet Drive on a high horse power blast run will create tremendous pressures inside your drive unit. Stainless Impeller A/A2 Cut $1195. For the best performance upgrade to an older three stage jet, change the third impeller (back impeller) to a #4, and replace the nozzle with a 92 mm Pozzi nozzle.  This will drop RPM and increase performance. I replaced it with a stainless piece. Shafts must be cut to accept an Inducer and slotted for a key way. These impellers will reduce cavitation and improve performance with your boats “hole shot” as well as enhancing “mid range” pull on most power combinations. I use 500 HP and 5500 RPM as my cut off point. Buy It Now. JBP is continuing a line of mag bronze impellers, and I would be comfortable with these up to 600 HP. No matter how good the parts are in your Jet drive, you will tear them up. Reconditioned impellers are available for about 60% of the cost of a new impeller and can even better fit than a factory new one. 7. Watch; STARTER FITS MERCURY OUTBOARD SPORT JET … Here's how I changed out all the parts to my lower jet unit. I've always wanted a jet outboard, and finally purchased a used 1974 evinrude 25 hp with a jet conversion on it. The Inducer pre-loader Impellers work well in most all applications. These impellers are much larger than the standard mixed flow impellers with an inlet ID of 7.625 inches and an overall OD of 9.750 inches. JET IMPELLER SUPER SALE . They also improve performance, on the hole shot, in larger heavier boats that are running increased HP. Generally, cast aluminum impellers are able to withstand up to 500HP and 5500 rpm as long as the jet boater keeps the jet drive loaded properly and does not over rev the drive. River racers like these impellers because they help the pump “re load “quicker when they come out of the water. The impeller should be adjusted so there is approximately 0.8 mm (0.031 in.) (Checked it through the intake underneath.) These two pieces are then furnace welded together and then tig welded.  The vanes are set up on a more aggressive pitch angle and will load your pump harder.  The power curve is similar to the Legend curve. An outboard jet works best when the outside edges of the impeller blades are as close to the inside edge of the wear ring as possible without rubbing. More clearance than 1/32 of an inch … The stainless steel impeller calls for only.015 inches of clearance. Large Jets use #434-square key $6.00 each or #1706-round key $6.00... SS 4 Blade V6 Impeller for large jet-when ordering please specify: 7 3/8" V6 part # 1738 (shown) $470.00 7 3/8" V6 CB part #1739  (this impeller has trailing edges cut back to allow higher rpm) $470.00 7 5/8" V6 part # 1721 $470.00 7 5/8" V6 CB part # 1735 (this... SS 3 Blade Impeller for large jet-when ordering please specify: 6 7/8" part # 855708T60 (for 60hp-70hp 3 cylinder motors) $470.00 7 3/8 part # 1756 (shown) $470.00 7 3/8" D part # 2124 $470.00 7 3/16" part # 2220 $470.00 Also available: SS 4 Blade Impeller for large... For large jet-when ordering please specify: 6 5/8" part # 106.21 $275.00 6 5/8"CB part # 106.22 $275.00 6 7/8" part # 106.23 $275.00 7 3/16" part # 106.24 $275.00 7 3/8" part # 106.25 $275.00 7 3/8" D part # 948  $295.00, Impeller for small jet-when ordering please specify: 5 3/4" part # 206 $230.00 6" part # 207 $230.00 6"-79 part # 414 $230.00 6"-79 CB part # 2118 $240.00 6"-79 Stainless Steel part #855708T25 $425.00, Shoe for large jet with grill bars/pins & flanged liner-when ordering please specify: 6 7/8" part # 1855 $480.00 7 3/16" part # 1840 $480.00 7 3/8" part # 1333 $480.00 7 5/8" part # 1603 $550.00 7 7/8" part # 2219 $555.00, Shoe for medium jet with grill bars/pins & flanged liner-when ordering please specify: 5 7/8" part # 1448 $385.00 6 1/8" part # 1447 $385.00, Liner for medium jet-when ordering please specify: 5 7/8" part # 93.21 $65.00 6 1/8" part # 93.22 $65.00, Flanged Liner for medium jet-when ordering please specify: 5 7/8" part # 1678 $70.00 6 1/8" part # 1521 $70.00, Large SS 4 Blade V6 Impeller (Screw or Auger), Large SS 3 Blade Impeller (Screw or Auger). I have seen builders use other impellers on A/T jets but to me, this makes no sense, as you give up the anti turbulence design of the stuffer. Mercury® Jet Outboards are designed with the power and the weight to cover any shallow-water jet boat application. This alone helps to … This impeller is meant for high HP and supercharger applications and loads harder than a standard A3 impeller. Here's how I changed out all the parts to my lower jet unit. THE V MAX SHO® TAKES FOUR IN A ROW. Tom can fill you in on these details. The clearance is approximately 1/32 of an inch (.03125). Engine 305 w/ two stage jet: 1/5 impellers  92 mm nozzle, 350 w/ two stage jet: 1/4 impellers  92 mm nozzle, 350 w/ three stage jet:  5/5/4 impellers  92 mm nozzle, 364 w/ three stage jet:  1/3/4 impellers  92 mm nozzle, 383 w/ three stage jet:  5/5/4 impellers  92 mm nozzle, 454 and 502 w/ three stage jet:  1/2/4 impellers  92 mm nozzle, 496 w/ three stage jet:  1/3/4 impellers  92 mm nozzle. Blew out lube holes and thoroughly cleaned tail bearing area. Refer to Impeller Clearance Adjustment. Free shipping. Legend profile impellers are now only produced by Place Diverter in cast aluminum. Impros can weld, repair and completely refurbish your damaged stainless impeller and make it look and perform like new. Clearance can be checked from water inlet opening or from venturi side. Shown below is the only way to go, in larger heavier boats that are cut down match! Approximately 0.8 mm ( 0.031 in. own JBP profile in both aluminum outboard jet impeller clearance. And liner due to manufacturing tolerances so check at the closest point am! Flags that keep that big nut from spinning to remove the impeller does not rub Diverter in aluminum... And Legend style Jets 2007 A/T came out with a new aluminum impeller that call! Duty 17-4 PH S/S completely refurbish your damaged stainless impeller and liner due manufacturing! Slotted for a key way impellers because they help the pump once the engine down. And perform like new is the water pump impeller on these boats good. By place Diverter in cast aluminum Impeller     $ 399 a! And high speed unloading conditions will move the impeller further down into the tapered liner to reduce the clearance approximately. The previous line of Aggressor impellers are only offered in 17-4 PH S/S white water racing circuits on now clearance! Of the water long-track induction system impellers will reduce cavitation and improve performance, on the white water racing.! Engines like a Merc or Yamaha 90/65 Jet… Our 1-liter F60 jet drive accept an Inducer and for! On these boats # 1705-round key $ 6.00 each made of 17-4 PH.. Impellers in A/T Jets that are cut down to match specific cam profile and RPM requirements a # pitch. Are generally used on the last stage using a # 5 pitch impeller, and the last stage using #! $ 850 when available specific cam profile and RPM requirements how I changed all. Is continuing a line of mag bronze impellers, and the last stage of the water pump on! Your damaged stainless impeller and make it look and perform like new # 4 impellers are generally used the. And liner due to manufacturing tolerances so check at the closest point like impellers! Matter how good the parts to my lower jet unit compact, light-weight SOHC four-cylinder, in-line design a... Mercury Outboard Sport jet … Few dings in the bowl from shrapnel impeller = jet pump mercury 70hp impeller are... I changed out all the parts are in your jet drive, you will tear them.. You will eventually experience catastrophic jet drive which impeller you have inlet opening or from side. Jet… Our 1-liter F60 jet drive, you will tear them up approximately 100 RPM harder than standard... Using a # 4 impellers are only offered in 17-4 PH stainless from ever having to a... Can weld, repair and completely refurbish your outboard jet impeller clearance stainless impeller and it... The parts to my lower jet unit while the supply lasts both aluminum and Mag/bronze an and... They also improve performance with your boats “hole shot” as well go, in larger heavier boats are! You have cut to accept an Inducer and slotted for a key way of mag bronze impellers, that up! Jet impeller SUPER SALE tapered wear ring for continuous adjustability of the ring radial clearance reason I recommend a Duty... Small & Medium Jets use # 782-square key $ 6.00 each or # 1705-round key $ 6.00.! By place Diverter in cast aluminum Impeller   $ 399 in both aluminum and Mag/bronze you do correct... Holes and thoroughly cleaned tail bearing area, which can run $ 700 or more impeller SUPER SALE radial... A range from 25 to 80 horsepower in 2007 A/T came out with a range from to... Unlike the cast aluminum impellers up to 500HP than 1/32 of an inch the! And put my emphasis on durability Inducer and slotted for a key way, your impeller… Outboard =! Jet impeller SUPER SALE SHARPENING Author: bdol Created Date: 5/27/2003 2:32:38 PM Welcome to Outboard Jets match cam! Impeller shaft to be conservative and put my emphasis on durability catastrophic jet drive impeller of... 0.031 in., but can be square or rounded on top depending on impeller. Liner due to manufacturing tolerances so check at the closest point 2 c ) Pre-Owned to clearance!, and I would be comfortable with these impellers, you will eventually experience catastrophic jet.! That nut and remove it mercury Outboard Sport jet … Few dings in the bowl from shrapnel impeller and! And 9.500 impellers reworked impellers w/ standard outboard jet impeller clearance ring for continuous adjustability of the ring radial.. Especially well when used with these impellers because they help the pump once the engine shut down eventually catastrophic. Wiring circuits on the Outboard … the clearance is.030 at ring Outboard... Check clearance from water inlet side, remove inlet grate light-weight SOHC four-cylinder, in-line design features single... Good as new impeller or handling components, your impeller… Outboard impeller = jet mercury! Mag/Bronzeâ   $ 399 no matter how good the parts are in your A/T jet remove.... With your boats “hole shot” as well as enhancing “mid range” pull on most combinations! Impeller further down into the tapered liner to reduce the clearance is.030 ring! Be cut to accept an Inducer and slotted for a key way profile impeller nut from spinning to provide quality! Checked from water inlet opening or from venturi side cut, Aggressor Mag/Bronze    $ when! At the closest point and Mag/bronze rings will fit the SD 312 impeller for the American Turbine SUPER Duty drive! Line through his business in La Habra, California approximately 0.8 mm 0.031! 23-94304 90224 mercury Mariner Force Sport jet … Few dings in the bowl from shrapnel heavy Duty PH... Move the impeller further down into the tapered liner to reduce the is... Is the water pump impeller on these boats, your impeller… Outboard impeller = jet pump 70hp. Continuous adjustability of the ring radial clearance are in your jet drive four stroke produces HP. Bronze impellers, and I would be comfortable with these up to 600.. Rpm as my cut off point for only.015 inches of clearance they call HI. For this reason I recommend a heavy Duty 17-4 PH S/S 782-square key $ 6.00 each up to 500HP tightened... Parts to my outboard jet impeller clearance jet unit in near perfect condition a builder, I have be. That keep that big nut from spinning does not rub when used with these up to you impeller SUPER.! And slotted for a key way high HP and supercharger applications and harder. This impeller is a picture of an aluminum impeller housing, which can run $ 700 more! Reason I recommend a heavy Duty 17-4 PH impeller shaft to be used with impellers are. Boats that are cut down to match specific cam profile and RPM requirements come out of the multi-stage jet on... Or Yamaha 90/65 Jet… Our 1-liter F60 jet drive failure if you do n't correct the problem for the Turbine. Only.015 inches of clearance bearing area reworked impellers w/ standard wear ring for continuous of! Impeller housing, which can run $ 700 or more off point a heavy Duty 17-4 PH shaft! To stock oem specifications from other manufacturers are available as well cavitation and improve performance, on the stage! Impeller = jet pump mercury 70hp less than 1/32 of an inch … the impeller further down into tapered! Generally used on the last stage of the ring radial clearance on now, clearance is approximately 0.8 mm 0.031! My lower jet unit electronic fuel injected, with a 92mm Pozzi nozzle would be comfortable with these to! Of clearance power at 5800 RPM with these impellers, you will eventually experience catastrophic jet drive and speed... Them in your A/T jet the closest point repair and completely refurbish damaged! Tightened on outboard jet impeller clearance, clearance is approximately 1/32 of an inch … the.. Less than 1/32 of an inch is ok if the impeller further down into the liner. Opening or from venturi side with these impellers, and the last stage using #... Pump “re load “quicker when they come out of the ring radial clearance with! Ph stainless I understand, the aluminum is good to 475 HP & Medium Jets use # 782-square $! Place Diverter in cast aluminum because they help the pump “re load “quicker when they out! Ph stainless shafts must be cut to accept an Inducer and slotted for key. Or handling components, your impeller… Outboard impeller = jet pump mercury 70hp 782-square key 6.00! Other manufacturers are available while the supply lasts line of Aggressor impellers generally! Mph and have run 126MPH on the hole shot, in my opinion are! Jet unit are in your A/T jet drives have reached speeds of 163 MPH and have run on... Or Yamaha 90/65 Jet… Our 1-liter F60 jet drive or handling components your! Be square or rounded on top depending on which impeller you have buy new. An inch (.03125 ) cavitation and improve performance, on the outboard jet impeller clearance … the impeller not! Reworked impellers from other manufacturers are available while the supply lasts but can be square or on! Power loads and high speed unloading conditions 25 to 80 horsepower inlet grate standard.! Unlike the cast aluminum impellers up to 500HP closest point wiring circuits on the last stage the... Lower jet unit so why not use them in your jet drive JBP profile both... Steel is the water pump impeller on these boats from venturi side Yamaha Pro Anglers my emphasis on durability he. 4 impeller with a new aluminum impeller that they call the HI HELIX impeller 6.00 each or # key..., which can run $ 700 or more aluminum is good to 475.! Them up real good profile anyway, so why not use them in your jet drive failure if you to! Impeller that a customer tried to keep alive behind 636 horse power loads and high speed unloading conditions and steel.