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Discussion Starter · #1 ·
Z-Fans,

I found that the best way (for me anyway) to remove a stubborn crank
nut (holds main crank pulley / harmonic balancer on) is to use a Vise-Grip
Locking Chain Clamp (part number 9AC).

Folks were telling me to put a breaker bar on the nut, brace it with
a block of wood or something, and then to just turn the motor over.That
sounded kind of drastic.

The chain clamp wraps around the pulley and locks tight. I used a
jack stand under the handle of the clamp to keep it from moving. Then
with a 24mm socket I broke the nut off with no problems.

I got the wrench from my local equipment rental place.

Steve
73 240Z in NJ
 

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Usually, using a 1/2 inch drive ratchet if you give the end of the ratchet handle a good solid hit with a dead blow hammer it will loosen. If it does'nt work then I pull the lead off the coil and use the breaker bar on the ground routine.
 

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rope in the cylinder trick

I always take out my #1 plug and bring the motor to 180 DBTDC

then I stuff as much nylon rope as I can into the cylinder through the plug hole... then I simply undo the bolt, either way you turn the motor over, that piston will come up and compress agaist the soft rope....

after your done, back the motor off and carefully pull out the rope

been doing this for years... seems like the most hastle free way
 
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