[6pack] I need a measurement

[David Friedlander]

Bob;

I rebuilt my the engine on my 74-1/2 this fall (engine overheat) and still
have the old gasket. The fire rings on my used gasket varies in thickness
across the cylinders from 0.065 to 0.072". I had my head decked and they
removed 0.009. A new Payen gasket worked fine. I never gave a second
thought to the fire ring thickness and would suspect you have nothing to
worry about.

Cheers and Happy New Year!!

Dave Friedlander



On Fri, Dec 27, 2013 at 12:18 PM, Robert M. Lang <lang at isis.mit.edu> wrote:

> Hi,
>
> If you have a used late-style TR6 head gasket laying around, I need a
> favor. I need to know the thickness of the fire ring (after being crushed).
>
> I had a TR6 block decked to true it and they took off .006", but now the
> recesses measure about .012" - I think I need to have the recesses re-cut,
> but I want to know how much crush we can get away with.
>
> I know the answer, but I want an actual measurement from a used head
> gasket.
>
> In a total lapse of good judgement, I actually threw out the one I took
> off this engine. GO figure. Probably the first time I ever cleaned up a job
> before it was done.
>
> :-)
>
> Thanks in advance.
>
> rml
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> Bob Lang              Triumph TR6!!            |  This space for rent
> Former NER Solo Chair                          |
> Voice:617-253-7438                             |  Cell: 339-927-4489
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