C0S_TURBO

Hi I have managed to blow my head gasket again on my 2wd Saph. I am only running 14 psi (MD67 turbo), RS500 intercooler, air filter and exhaust, yellows, ARP stud and nut kit, not a huge power car, but this is my 3rd group A head gasket in under a year. It always goes under the exhaust manifold. I have had the head skimmed any ideas?
Is the ARP studs and Nuts reusable? I have thrown the instructions away, does anyone know the torque settings. I remember there were two as one was or the arp grease and the other for motor oil (which is better)?
Many thanks!

bud-weis

i would say it's failing due to the block not being flat or not being torqued correctly, should be no reason why a standard gasket let alone 'grpA' wouldn't be sufficient on that spec.

JTECH James

iTrader: (13)

reusable stud kit mate, 80 lb/ft arp lube, and 120 lb/ft motor oil.

C0S_TURBO

Thank you for those settings, will take it a part this weekend weather permitting.

pee vee

i would also say that the block needs checking for flat-ness mate.

deffo sounds like its not if you been thru that many gaskets

C0S_TURBO

Thanks for your reply pee vee, do you know if the block can be skimmed in the car or is it engine out?

Thanks

bezo

engine out.

pee vee

If you can check it yourself, then you MIGHT be able to do it with the
engine in place but head off.

(flat and feeler gauges)

But if the block is shown to be mis-shapen,
then yes, engine out, Stip the block of everything
and take it to the machine shop to be skimmed