Motorsport thermostat

[magnust]

Thanks for the replies!!

Originally Posted by The Gorilla

...
When you had the head Gasket replaced did you
re- surface / skim the head ?

S54 is alloy head and should be re-surfaced everytime
the HG is replaced.

It was done by an authorized BMW shop under insurance. They had problems finding what was wrong, the motor had a strong ticking noise. After failing to find the source of the noise they removed the head. They then sent it off for finishing since they found a very tiny hairline crack between cyl. 5 and 6. And finally they found a worn down exhaust rocker on cyl 6 - the cause of the ticking of course - so they changed the cam and all rockers. Would I be right in presuming they'd re-surface, being authorized shop probably knowing this is a must do ?

Originally Posted by The Gorilla

...
Get and old thermostat, remove the centre but keep
the outer, prevents water caviataion, and fit.

Sounds like something I could take with me and swap to when at the track? Anyone know of any helpful pics on the net so I understand the "remove the centre but keep the outer, prevents water caviataion" better so nothing goes horribly wrong


/Magnus