jetrainor

Would appreciate any best practise proceedures for loosening/tightening the crank bolt on an 87 auto......doing my Murf SC install and would like some advice on this....i had some previous work done which required removal of the pulley's and the mech used a massive set of lock pliers to hold the pulley and chewed ths **** out of the area where the belts run.....i dont want to do this when installing my new pulley. I only have alternator and powersteering belts (airpump and aircon gone). At 220 ftlbs or so, wondering how i hold this tight enough to loosen old then tighten new pulley.

76FJ55

the correct way to hold the crank from turning it to install the flywheel lock (tool number 000 721 916 12 fits both auto and manual). then with the flywheel locked you should be able to loosen and tignthen the bolt.

brutus

928 International ...Item Number : 000 721 916 12

Unit Price: $66.00

Universal flywheel lock fits all years.

928 at last

Using the proper locking tool will save you a lot of grief and aggravation/damage. Wait, your "Mech" has apparently already seriously screwed up.

You really need to use the locking tool and a SERIOUS power bar (with a six foot (yes really) pipe extension if necessary to break the crank bolt loose. (Mine took roughly 3x the suggested torque value to release). Be very careful how you do this, because a miscalculation when it breaks free will result in a nasty dent in the bodywork if you're not aligned and ready for it.
Same thing on install. Flywheel lock in place and then bring the bolt up to the spec. torque value.

Podguy

The older flywheel lock can be used on the newer cars by clamping it with a pair of vice grips. I saw someone advertizing a universal lock.

Harbor Freight sells a 3/4 inch torque wrench for under $100.

dfrhodes

I sheared off a 1/2" breaker bar trying to get mine off. a new 3/4" breaker with 5' extension worked.

Also, don't use the short flywheel cover bolts with the lock or you may strip out whatever minimal number of threads their turned into. did that one too.

SteveG

Thanks for noting this. I was complaining about the extra threading I was having to do with these bolts. Learn something everyday.

GlenL

Pull!

Lizard928

I have the flywheel lock tool, and it's the way to do it.

I also have two 3/4" T bars with sockets for this purpose.

Stromius

You might also need to heat the bolt. I used a Harbor Freight butane torch (carefullly) as mine was a bit cranky

PHIL928

did it this morning, couldn't imagine doing it without the flywheel lock. sounds like you had an insane mechanic lol

dcrasta

Hahah, if you think the belt is tough wait til you try to pull the pulley off.
.A flywheel locking tool is a must if you do anything to this car engine wise.

jetrainor

Hmmmmmm...well, guess that explains why my inch and a quarter socket/12 inch bar didnt do much..i have the car on my 4 post lift and am working from underneath....with the fans gone, there's still not a lot of room in there...obvioulsy with a big bar im going to have to work from the topside.
LEFTY LOOSEY - RIGHTY TIGHTY ?

COLIN.....any chance of putting the flywheel lock and a bar on the Greyhound for me?

jt

928Myles

LEFTY LOOSEY - RIGHTY TIGHTY ?
Yes.
Remember that if you are going to rotate the engine for any reason only do so in a clockwise direction (tightening direction).
Also, if I was you, I would put the engine to the 45° mark on the pully before you insert the flywheel lock, just in case you want to do anything else while you are in there.

Myles

brutus

Many use a jack handle as a long breaker bar. leverage is your friend just be sure when the bolt breaks free you do not smash things with the long exstension.