On 8/18/2010 9:59 PM, Ben Zwissler wrote:
> I've got about 700 miles on my TR4A after its rebuild. I've been
> tracking down some oil leaks and it seems I've got oil leaking from
> the push rod tubes in the head. I reached that conclusion after
> installing one of Justin Wagner's silicon valve cover gaskets and
> degreasing the head. Oil reappeared only around the pushrod tubes.
> Anyone have experience with this? I had the head gone over by a
> machine shop - new valve guides, valve job, etc. They cleaned it, but
> did not hot tank it due to a prior experience with the tubes
> dissolving. When reassembling I did not add any sealant specifically
> on the tubes. Overall, the engine's not a horrible leaker but I'd
> like it to be better.
>
> Thanks for any advice. Ben.....
>
Ben, I think Jack Drews, of FoT fame, did a write up years ago about
this problem. He tried a number of solutions, including applying
locktite stud sealer at the head/tube interface on the outside. I think
he mentioned that some folks have applied a bead of J.B. Weld (or
similar) around the tubes on the inside of the head. Try searching
Tony's site (www. tonydrews.com).
hth
j
--
Jim Hassall
Blacksburg VA
'63 TR4 in autox preparation
99% finished, 90% to go
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