Overheating

[Vic Butler]

There's an article in the current issue of Practical Classics about compression problems and one is a cracked cylinder head. This can cause overheating or water loss but doesn't necessarily show on a compression test. When I did a test 1 cylinder was 5psi down on the other 3, well within the tolerance so I suspect the problem lies there. It's just a matter of removing the head and finding the fault.

[Ian F]

Getting closer!! Get that head off and let us know!!

Ian F

[Not_Anumber]

What was found when the head was checked ?

[Vic Butler]

I haven't removed it yet. I'll report when done. I suspect a crack but because it's modified to take MGC inlet valves it's unexchangeable. The MGOC sell Stage 2 heads outright and I believe they're done by Ivor Searle. Anyone had experience of this company?

[Ian F]

Peter Burgess would be my choice, if I wasn't doing it myself.

Ian F

[Vic Butler]

I'm not sure if Peter Burgess sells modified heads. His website makes it look like he modifies customer's own.
I'll contact him to check.

[Bumpa]

Well the stock of decent uncracked heads might be diminished by now, but years ago when my head went to Peter and he found it cracked, he supplied a good head modified to "Fast Road" standard and very good it has been.

[Vic Butler]

Thanks Mike. I'll definitely contact him.

[Vic Butler]

I contacted Peter Burgess but unfortunately he doesn't have any suitable cylinder heads.