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Flyeheel bolts

Posted: Wed Dec 15, 2021 8:25 pm
by carl
Hello I have taken my flywheel of my '70 914/6 engine. Am I right in thinking the bolts are stretch type and now need replacing?

Re: Flyeheel bolts

Posted: Thu Dec 16, 2021 8:32 am
by PeterK
Not sure about the 914/6, but I always replace flywheel bolts.

Re: Flyeheel bolts

Posted: Thu Dec 16, 2021 11:27 am
by SeanP
They are one use only unless they are ARP bolts which are cheaper!

Re: Flyeheel bolts

Posted: Thu Dec 16, 2021 10:43 pm
by carl
SeanP wrote:They are one use only unless they are ARP bolts which are cheaper!
Where can I purchase ARP bolts?

Re: Flyeheel bolts

Posted: Fri Dec 17, 2021 8:20 am
by Ian Comerford
Design 911 seems to stock some, not sure if they are right for yours.
https://www.design911shop.com/Clutch-Fl ... gLrWfD_BwE

Re: Flyeheel bolts

Posted: Fri Dec 17, 2021 2:31 pm
by Mike911scrs
HI Carl

the bolts above are for the 9 bolt/later engine, SC/3.2/964, I would not use the 9 bolt, bolts twice, as I have come across the heads falling off

the bolts you have will go back, as long as the socket hole is good and not rounded off, DO NOT use locktight on the threads, just the correct torque

regards mike

Re: Flyeheel bolts

Posted: Sat Dec 18, 2021 8:00 pm
by carl
MBEngineering wrote:HI Carl

the bolts above are for the 9 bolt/later engine, SC/3.2/964, I would not use the 9 bolt, bolts twice, as I have come across the heads falling off

the bolts you have will go back, as long as the socket hole is good and not rounded off, DO NOT use locktight on the threads, just the correct torque

regards mike
Sounds good. Thanks Mike.