Im on the process of tearign down a 13b motor I have had for a while and Im trying to get the E shaft pulley Bolt out and it wont budge.

What methods have you guys used to get yours out during a rebuild, etc.

By the way I have the flywheel locked so it doesnt turn with the bolt.

I even tried to use the pneumatic air gun to remove it , still didnt work.

Help me out with soem advice guys.

Front or rear?

The main drive pulley bolt up front should come off fairly easy(85 foot pound aapprox)

The rear flywheel nut is a didifferenttory(360 foot pound). Requires a stationary motor a good long breaker bar (with a pipe slipped over if nessasary) and a good strong friend/relative.

PK797 NYC

You'd think that at first blush understandably pk797, but unfortunately the rear world has an odd way flip-flopping that on these two particular "problem children". The flywheel nut turns out to be considerably easier to get off than the front even though there's a 4x difference in ending torque.



The front hub bolt can either be removed with the engine in the car, and the transmissions in gear, using a 19mm socket, breaker bar, and "cheater" (extension) pipe, or it can be removed with atleast a 700ft/lb impact gun depending on whether or not the bolt being removed was freshly installed (i.e. motor that's rebuilt often) or old (perhaps factory-new, 10+ years old).



B

Thanks, Its a pain, Too bad I already took the engine out of the car so I cant keep it in gear,etc.

But im goignto go borrow my friend 3/4" impact gun tomorrow and try to break it open. Thanks for your help BDC.

You bet! Good luck with it. Even with the tools I have (the 500ft/lb 1/2" impact gun) I still find myself being stuck with that front hub bolt fairly often. It takes a trip to the local Discount Tire and a half-disassembled engine in the back of the car to fire it off. The 3/4" gun you'll get should definitely do the job. I need to invest in one myself.



B

Hopefully the 3/4" will do the job. I have tried taking it off with the 1/2" impact gun today and it didnt even budge and i set the pressure going into the gun at 110 PSI, I was surprised it didnt work.

Yep. Same story I run into myself sometimes. I've got an engine to disassemble tomorrow and I'll probably run into it then, too. https://www.nopistons.com/forums/pub...DIR#>/ohmy.png



B

yep. One day we ended up using the 3/4 impact and it spun the sides of the bolt of...so the bolt was basically circular(and no way of getting any socket on it).



Had to cut it out ...that was NO fun. https://www.nopistons.com/forums/pub...IR#>/blink.png

How come everyone else has all thes problems except me? I usually do this by myself with the engine on an engine stand, flywheel lock, 3/4" breaker bar, 19mm impact socket and a 4' pipe. Yes, the front is harder than the flywheel nut. Oh yeah I forgot to mention that I weigh 300lbs., one advantage to being a fatass.

Well, ever since you've shown me the "magic", I've had no problems...and I'm 165 lbs fat ass. https://www.nopistons.com/forums/pub...IR#>/boink.gif