[TR] Have I blown a gasket?

[Geo Hahn]

John -

You may be right, but I would check all valve clearances before getting
into the head.  Also, a leak-down test may tell you more than just a
compression test.

Geo


On Thu, May 8, 2014 at 11:53 AM, Lee&John Howard <leejohn7 at gmail.com> wrote:

> Hello list:
>
> Following a club run last weekend, I did some basic testing on the TR4.
> Found that plugs #1 and #2  were fouled, especially #2, which had an oil
> drip on its tip. Proceeded to check the compression : 110 on #1 & 2; 156 on
> #3&4.  Then I remembered something peculiar at the Webers. The front carb ,
> feeding the front cylinders, has for a while not seemed fully effective;
> eg, you can't choke off engine by blocking one or both throats, whereas
> choking either of the rear throats will stall the engine. Finally, I do
> have to top off the radiator more than would seem usual, with no leakage
> apparent.
>
> So - Have I blown the gasket? Or perhaps it wasn't seated properly in the
> first place. I reassembled this engine some 5 years ago, so anything is
> possible. Compression readings four years ago were 135, 130, 130, 135
> (cold) - close enough. The readings above were done on a warm engine and
> were the same wet and dry.
>
> Your thoughts?  And thanks, as always.
>
> John Howard
>
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