[ckillerh3]

Hi -

Trying to replace my timing chain, and gotta remove the
crank pulley bolt.

I put the car in 4th and blocked the wheels, but when I
try to remove the bolt I end up rolling the car / engine around.

I read about a guy that put a breaker bar on the bolt and then
cranked the car over to try and bust the nut loose. That sounds
like a bad idea, though.

Any tips on how to remove this stuborn bolt?

 

[chrisp]

The breaker bar/starter thing worked for me when I was working on my SHO. I had the frame to brace the bar against, I'm not sure how it'll work on a Z.

Chris

 

[Big Dan]

the breaker bars the way to go. For tightening remove starter wedge screwdriver between flywheel teeth and trans.

 

[Unknown User]

when i had to do the timing belt on my mazda, i shoved a block of 2X4 between where the wrench would hit and the frame. then i moved the wrench so that it would go 1/4 turn before it would hit the wood. same effect as an impact wrench. just wedge the wood on the left side of nut, and let the wrench hang straight down. i used an open end wrench. i don't think a socket wrench would work as well since it should pivot off the nut. just use an open end wrench. don't ask me about how to get it back that tight. just quite a few knocks with a hammer on the wrench i guess. that's what worked for me.

 

[ckillerh3]

Can it break the pulley?

Hi -

I read the tech-note under the "articles" section.
One fellow that did this managed to break the
harmonic balancer on the pulley. Is there anything
to be careful about when using the "turn the starter motor
over to remove the crank bolt" technique?

Stephen

 

[Shreegs]

DONT GO THERE

I almost wasted a crank once with the breaker bar method. Only do this if you have no other option. Borrow an Impact. I now own a Tap, for fixing stripped crank threads.