I did the same as Tony with one of the widely available cast aluminum
valve covers for the TR3/4. Had my machinist cut a groove and I stuffed
a long o-ring in. I'd bet that was 15+ years ago, never had to replace
the o-ring and it seals perfectly after countless on/offs. On the 6
cylinder, I use the stock cork valve cover gasket glued to a cast
aluminium valve cover, works perfectly as well.
I do like the silicone valve cover gaskets on stock valve covers that do
not appreciate being torqued excessively.
On 2023-09-01 10:14, Tony Sheach via Fot wrote:
I'm using neoprene o ring seals in some new billet valve covers that
I've had made and they are absolutely terrific, reseal nicely after
multiple on / offs and no muck to get down the push rod tubes etc. I
think that's the way forward.
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