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Valvebounce

M20 Head gasket set, where do these bits go?

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I scored a Reinz head gasket set for my M20.
Real nice kit.

But there are a few bits in the set that I can't find homes for.

One large O ring, (Larger that the sqaure section one from the outside of the cam seal carrier)

One small O ring (smaller that the two on the oil drain tube)

And two pairs of Shims

Any idea where these bit belong?

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Big one will be thermostat seal, Cant think of the rest though

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Little ring might be oil housing bolt seal? Or do the M20s use a screw on type filter?

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^^^^^^ Yep spin on

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The silver rings are sealing washers not shims (I think), go under things like the temp sensors to stop them leaking. If you haven't stripped the head right down then they probably don't need to be replaced.

Not important bits anyways...

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I just unbolted the thermostat housing whole when I had the head pressure teasted.

I was concerned about torquing the head down, only to find I'd missed something which couldn't be done insitu.

Many thanks for the input guys.

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Large one, could also be the seal for the oil cooler thermostat right angle thing or just the thermostat hard to tell haha, small one dipstick, crush washers for sensors and one will be for the sump plug.. M20's have a spin on and no filter housing.

Edited by antil33t

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The four shim/sealing washers were indeed for the two temp senders. A spare t/stat housing I have also had an extra pair of hex bungs in it which would account for the other two washers.

The baby O ring is still a mystery.

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