Possible Head Gasket Failure

[keynsham]

So head is off and I have found the problem. It seems the head gasket was corroding away and had started leaking between the water gallery and rear cylinder of the offside bank. I had a measure of my camshaft whilst I was in there and that has some wear too so it will be replaced at the same time.

[adam quantrill]

Camshaft is pretty independent of heads, and needs more hassly fiddling about like lifting the engine enough to get it out.
If the cam is OK why add the extra complication, is all I'm saying.

Don't forget - Elring head gaskets.

[keynsham]

The cam needs doing. Standard lift is 0.39" which equates to 0.26" at the lobe after allowing for the 1.5 factor from the rocker advantage. I measured a few of my cam lobes and they are around 0.245", making valve lift 0.3675" or thereabouts, which is a 6% reduction on production. Put into perspective, medium road cams seem to be around 0.42" lift which is around 7% greater than production standard and 13% greater than my worn cam, so a whopping 1.33mm greater valve lift! I'm in there now anyway, and I love taking engines apart so it is just a case of which cam!!!

[keynsham]

It's in a lot of pieces now! Time for a major clean up job and some parts ordering!!

[adam quantrill]

Fair enough. Looks like good progress. Check the pushrods and replace if not quite straight - roll across a sheet of glass.
I used Britpart pushrods which work well.

[mk1fan]

Oh how these jobs grow

[StefanVXR8]

Thanks for sharing this thread from the CR forum.

Definitely sounds like the same issue I have. Just need to source the gaskets down under, not as easy to get quickly as it used to be before I emigrated 🙂

Stef