I agree with the statement "Hylomar is the answer".
On Mon, Feb 22, 2021 at 8:28 PM Stuart Greenwood <sagreenwood@att.net> wrote:
>
> In July 2017 I saw that the front crankshaft oil seal was leaking on my TR250
> but the timing case itself seemed to be leak free. In January 2018 I replaced
> this seal which of course meant removing the timing case cover and using a
> new gasket. I serviced the car last weekend and could see that the oil seal
> was not leaking but there seems to be oil leaking through the timing case
> gasket.
> I have the same situation on my Spitfire Mk IV. I completely rebuilt the
> engine in April 2004. Now, after about 15,000 miles since the rebuild there
> are signs that the crankshaft oil seal is leaking again and the timing cover
> gasket is leaking oil.
> I am starting to think that the gaskets you can buy are not oil leak proof. I
> think that over time oil seeps through the gasket material, NOT between the
> gasket and the engine block or between the gasket and the timing case cover
> but through the gasket material itself.
> I am going to replace the oil seal on the Spitfire but the question I have
> for the list is should I use a gasket or use "form a gasket" RTV type stuff?
> Have any of you used a gasket that is guaranteed not permeable to oil and if
> so where did you buy it from?
>
> Has anyone else suspected that some gasket you can by from reputable dealers
> like TRF, Moss or Rimmers are in reality permeable to oil?
>
> Stuart A Greenwood
> San Diego Ca
> ** triumphs@autox.team.net **
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