John Speake

Paul on 928uk uses a breaker bar on the ground, spins the engine on the starter...

Hilton

First one I did I used a floor jack - it lifted the nose of the car off the ground, so I had to put it down and get a longer lever.

These days I just buzz them off with a (large) air impact gun.

Spun

You're good there.... back to longer lever... If you can slide your floor jack handle over your ratchet, that is a good pull bar as well, otherwise, pick up a piece of fire sprinkler pipe at home depot, and return it once you get that puppy free... nice and ridged for this type of work...

RFJ

Hilton ,large air wrench yea,works every time. that is if you have a compressor.

Tails

Tit flywheel lock, ensuring you have the right gear teeth profile and the securing bolts holding the lock fully penetrate the tapped holes. Use a 3/4" drive and socket with a "T" handle and 6 foot of water pipe over the "T" bar.

Set up socket fully onto the bolt head, take up the slack and turn the retaining bolt anti clockwise by positioning yourself to push upwards under the water pipe. Don't pull downwards onto yourself otherwise you could end up in hospital. Don't ask questions why, been there done that. By lifting upwards under the bar there is less chance of damage to the front fender as well.

I personally don't subscribe using the starter motor, as you are applying stresses on parts not made to do this function.

By using the above you don't have to remove the radiators to use the impact air tool, however if the radiator is removed then use a air impact gun (need good air compressor and correct impact hex socket.

Don't forget that the tightening torque is around 300 ft/lbs, IIRC, so to crack the bolt head off the seating surface it will take more torque.

When you reinstall don't forget to apply "anti-seize compound on the bolt threads, so you won't have the same problem next time. Good engineering practice dictates that when reinstalling parts, alway use anti-seize to avoid problems of diss-assembly in the future.

Tails 1990 928S4 Auto

polecat702

It's all about leverage. I just did this job in December, but I've got a lift. 3/4 breaker bar, a deep impact socket, and my fat ***, one good tug and it came loose.

Adamant1971

Mine wouldn't even budge with a 4' bar.

But I picket up a torque multiplier and took care of it with ease.

http://www.princessauto.com/pal/prod...que-Multiplier

Landseer

Like Polecat says, leverage.
And patience.
Lots of force required, plan your attack.
Not a sprint to finish.

tailpipe

3/4 drive and socket, buy the socket for the rear axle nuts too while your at it you will break 1/2 drives on them too....

Bill Ball

Once you get the crank bolt off and reinstall it properly at 218 ft lbs, you will be surprised in the future at how easy it is to break free. I've seen some bolts that I would estimate were 800 ft lbs and required a 6-foot pipe on my breaker and a lot of grunting to break free. I was surprised the flywheel lock or flywheel teeth didn't break.

risaac928

All this stress and frustration for a "TB".....?!?

69gaugeman

This. Stress free and easy. No dented fenders, broken skin or anything like it. Once you use one, you will never try any other way.....

This is a 4:1 which I have. They have a 9:1 as well....

Dave_Bratley

Bill - you hit the nail on the head - I'm worried the flywheel lock tool will slip or the pressure will just damage the flywheel teeth. I have used a set of slightly longer bolts on the flywheel lock as John suggested when I bought the tool and now for extra good measure (as it did already slip the first time I tried it) I have put a jack on the flywheel lock tool to stop it sliding out of position. It's since locking everything in place with the jack that I've started snapping breaker bars... anyway off to the shops this Sunday morning to try and find some heavy duty breaker bars...

The fact the lock tool slipped the first time has made me lose confidence.

Ad0911

Be sure to use a 6 sided socket (power socket preverably) and not one with 12 (don't know the American words for this but I'm sure you know what I mean).

17prospective buyer

This is why taking the motor out makes this all so much easier!