krystar

ok....i'm stumped...what's the trick here. 12mm cheesehead tool right? these bolt heads are so shallow, i'm afraid to put any torque on them at all. the tool doesn't stay seated as securely as i'd like it. i certainly don't want to strip these.

KuHL 951

I've always used an impact wrench and special cheesehead sockets for these and never once stripped one. It doesn't take much to round one off with a standard ratchet if it isn't perfectly square.

JohnKoaWood

For $44 on 944online.com or $47 on Pelican a flywheel lock holds the flywheel while removing the bolts.... Use and impact and they should come right out, if you do strip one, drill off the head, and once the flywheel is off use a good pair of vicegrips (if needed) to remove the bolts, I did strip two, and once the flywheel was off, they came out using my fingers...

PorscheDude1

By top quality triple square sockets. This will save you lots of grief.

Before putting the wrench to them, Give each blot a couple firm whacks with a hammer and punch to "wake" them.

CurtP

Take a small flat-bladed screwdriver and dig all the gunk out of the bottom of the bolt - the bit will fit deeper into the head. I had the same issue when I did my clutch.

Use an impact if you have one. You won't need a flywheel lock with an impact.

VaSteve

Make sure there's no dirt in there. You may want to tap them in a bit to make sure that they hit the bottom. Shouldn't be an issue after that.

krystar

heh maybe i should just toss the engine into my friends pickup and drive it to a shop. show up in their parking lot "hey can u impact some bolts off?" hehe

Smoker324

I second smokimon's advice -- clean it out -- then give it a few whacks with the BFH and a quick twist on the rachet should break them free w/o impact wrench.

Has worked many times for me.

-Dan c.

PorscheDoc

They are shallow, but I have never stripped a flywheel bolt on any Porsche I have ever worked on. Those bolts are stout. Pressure plate bolts on the other hand.........

krystar

i managed to get one of the bolts off. gonna have a friend bring over his electric impact. i was leaning with all my weight on the wrench and only managed to get 1 loose...too much effort hehe

PorscheDude1

Put a metal pipe on the end of the wrench to gain more leverage.
Trick is to make sure the socket remains square in the bolt while you break it loose.

krystar

yea that's the hard part about doing it with 1 person.

DarylJ

Take the advice on cleaning out the bolts, good triple square, etc, but go to sears and spend $20 on a hand impact driver. You can break them free with that, and, if you're careful you'll know that the socket is in straight.

Using big breaker bars on things like that makes me nervous because it's so easy to strip if you aren't on the cheesehead square.

krystar

....wow daryl. i did not know this tool existed. that's very nice!

http://www.sears.com/shc/s/p_10153_1...id=00947641000

DarylJ

They're great for getting the allen/cheeseheads/flat heads out of starter solenoids and things like that. I have air tools, but I still use the hand impact sometimes in the right spots.