CarnivorWS.6-01

iTrader: (7)

I got the old pulley off with no issues. Here is my dilema. I cannot get the new SLP underdrive pulley on because the bolt is to short. Can anyone give me an idea? Or where can I buy a M16-2.00 X 125/130mm? Thanks

orangeapeel

iTrader: (18)

I got mine at home depot. I just cut it long enough and welded the nut on to pull from. you can always use the old bolt to put it on with, and then use a new one to torque down.

bigti99a

iTrader: (16)

as said above, use the threaded rod way not the longer bolt. a local hardware place should have the stuff to whip something up with. i used a longer bolt but would have been more comfortable with threaded rod. good luck!

CarnivorWS.6-01

iTrader: (7)

Why a threaded rod versus a longer bolt? Is there concern of pulling the threads on the crank?

CarnivorWS.6-01

iTrader: (7)

Ttt,ttt

Addicted

Because when you are pressing on the pulley you have more threads engaged in the snout of the crankshaft and that reduces the risk of pulling the threads out.

Bad Boy Racing EPTX

Does this problem happen with all LS-1 cars or only in some cause i have a 98 trasn am and want to put in an SLP underdrive pulley.

oange ss

iTrader: (50)

all, better to use a long rod if you can get one

Sneakyws6

If you can find a threaded rod they work beter. The rod threads into all of the threads in the crank, then you use washers and a nut and then just crank the nut down until the pulley seats all the way.

Then continue on with the normal SLP install directions.

Yes almost all LS1's run into this issue when installing a pulley. I even tried heating mine in the over but it did not help, I then got a longer bolt and got mine on.

Long Beach

iTrader: (51)

Just heat up the pulley with a torch or the oven and it will slide all the way on with no problems.

moeZ28

iTrader: (7)

Hell, I just always took a 4x4 block of wood, or 2x4 turned sideways, and either a big hammer or a sledge hammer and "gently tapped" it on until the bolt would reach....

DaddySS

Do a search and you will find a huge number of horror stories from pulling pulleys on with bolts - damaged theads, stripped cranks, broken bolts, etc. IMHO it just makes no sense to chance it. Get a threaded rod, screw it in, then pull the pulley on. If you are bound to chancing it, follow the advice above and heat the pulley to 200 or so degrees in the oven and see if it will go on a good part of the way. Be sure to use a new bolt for final assembly BTW.

oange ss

iTrader: (50)

oven is questionable...defintley dont use a torch...

CarnivorWS.6-01

iTrader: (7)

Thanks to all for the advice. One of the members is fixing me up with the installer I need to do the job right. Of all the things I need to happen pulling the threads on the crank snout is not one. It always cost's me more when I do it myself, but I do it for the love of the game. LS1 Tech is a great place with great people.

davered00ss

iTrader: (4)

There is a guy in the tool section that sells a tool to do this relativly cheap. He goes by Hawk636 or something like that. Do not try to take a shortcut and **** up the threads on your crank.

01WS6/tamu

iTrader: (37)

4x4 and a bmfh works everytime. gm number is J-007

Long Beach

iTrader: (51)

Why not? I have seen it done before, will it melt? I have never tried the oven but have tried the torch on my stock pulley. Not sure if aftermarket pulleys have plastic in them though. Let me know before i try it. thanks

Sneakyws6

The aftermarket pully does not have "plastic" per say, but it does have a rubber isolater that is what dampens the vibrations.


Also you will not be able to use a 2x4 or 4x4 to put the pulley on, there is just not enough room in front of the motor to use them.

tamikews6

iTrader: (13)

I used the pulley tool from hawk and it worked great.

moeZ28

iTrader: (7)

Bullshit!!!!!! I have done this more than 20 times to my car and others with no problems at all. 2x4 turned sideways, or a 4x4 and a ******* sledge hammer, or just a really big hammer works everytime!