Quote:
Originally Posted by Monkey
The earliest I've changed a failed S54 head gasket was 47000 miles 
Gregor, the headgasket failure on these engines does not appear to be as a result of excessive temperatures, therefore warping of the head is not an issue, and skimming is not necessary. I always check the head and block with a straight edge and never had an issue (others may have).
These gaskets fail between the cylinders, firstly between the end clyinders 1&2 and 5&6, if left I've seen a couple with it blown between every cylinder!
When the head gaskets fail it's the block that seems to take the hit, it starts to burn away where the hot gases are passing across the failed gasket into the adjoining cylinder.
I've got a CSL here currently with a failed gasket, I'll post up some pictures when I'm replacing it to illustrate what I mean.
And no, the heads most definately should not be skimmed! |
. Hi monkey what are your thoughts on doing rings at same time as head gasket and shells , really not much more of a job to pop some rings in, regarding restoring lost power on these old motors due to wear, against extra cost of rings, think about £150 a set
also has anybody done a recent dyno on a 13 year old csl to see how these old girls are doing..... Ps there's nothing wrong with My motor just a thought as I've already got all parts, bar the rings