Wheelz22

What's up guys....on my 89 550....original impeller (it's in nice shape, low time ski, sharpened up the leading edges).....replacing the wear ring (thank you PrickofMis for settin' me up with that solid part)....the prop is being a bear to get off in order to shim it to the new wear ring....anybody ever come across a prop that's been on there since day freakin' one and does not want to come off ? I had a pipe wrench on the thing going hard and she won't budge. I'm told it's normal threads, not reverse threads. Any help ? Maybe some heat ?....if not, who's sellin' C-4 ? What torque did the nips set this thing at in the factory ?

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85 550
86 550
89 550
89 650
92 550
(mods on the whole shootin' match)

Member: AWA, Grand Am Rolex DP Series, SCCA Trans Am Series, IMSA American LeMans Series

aka_BoB

I have a 90 550sx 93 550sx with the 18 spline props, these are normal threads, I also have an older 85 js550 and another pump off a js550 (the drivshaft fits into the pump shaft not the impeller like on the others) I have been working on my sx pumps the past week or so and took the prop off the 85 js550 pump, to steel an extra shim, and it is reverse threaded. I didn't have a prop tool for the js but had a spare driveshaft that I clamped in the vice between wood w/ a bolt through the whole in the driveshaft to prevent it from spinning. I then took my large adjustable wrench and was able to break it loose.

It did take a liitle torque to get it off, I ended up working it back and forth until it gave since I wasn't sure if it was right or left hand threads.

Some heat from a propane torch and some wd-40 never hurts...

Hope this helps,

aka

buxtonous

have fun mine was a complete BIATCH!

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1992 550sx westcoast full exhaust, westcoast water box, westcoast f/a, skat track 16*, westcoast ride plate, worx toploader grate, umi finger throttle, quick steer, head shaved, copper head gasket, westcoast exhaust manifold.

Wheelz22

Sh*t ! I was told that the threads on a JS pump were normal.....thanks for clearing that up that they are reverse threads.

__________________
85 550
86 550
89 550
89 650
92 550
(mods on the whole shootin' match)

Member: AWA, Grand Am Rolex DP Series, SCCA Trans Am Series, IMSA American LeMans Series

Wheelz22

Did you use heat or brute force ? What year was your pump ?

__________________
85 550
86 550
89 550
89 650
92 550
(mods on the whole shootin' match)

Member: AWA, Grand Am Rolex DP Series, SCCA Trans Am Series, IMSA American LeMans Series

buxtonous

mine was an sx but i was re-placing the original impeller so i ended up using a lump hammer!

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1992 550sx westcoast full exhaust, westcoast water box, westcoast f/a, skat track 16*, westcoast ride plate, worx toploader grate, umi finger throttle, quick steer, head shaved, copper head gasket, westcoast exhaust manifold.

Dodgerstarr

I replaced the impeller on my 82 js 550, i had to use a 4ft breaker bar and some decent force to get it free. Good Luck!

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82 JS 550: Getting Stronger Everyday.

Solas 14/19, Jet Power Exhaust, Orange County Ski Intake Grate, Custom Ride Plate, HydroTurf, Tau Ceti Flame Arrestor & Velocity Stack, Blueprinted Pump.

Soon to be added: Factory Half Pipe, Keihin 42mm Carb.

motoman96

1/2" Snap-On impact gun works wonders for me

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94 FX-1: ADA girdled head with 35cc domes, 0* freestyle bars, AC aluminum handpole, Coffman sizzler exhaust, Skat 18/23 impeller, Jet Dynamics intake grate and rideplate, ODI grips, UMI finger throttle, MSD enhancer
active member of the CCC (cupcake cult).

Wheelz22

Yeah, sounds like I'm gonna need it......thanks

__________________
85 550
86 550
89 550
89 650
92 550
(mods on the whole shootin' match)

Member: AWA, Grand Am Rolex DP Series, SCCA Trans Am Series, IMSA American LeMans Series

Wheelz22

Thanks Moto....

__________________
85 550
86 550
89 550
89 650
92 550
(mods on the whole shootin' match)

Member: AWA, Grand Am Rolex DP Series, SCCA Trans Am Series, IMSA American LeMans Series