I had a little look at that link and am having trouble following the
description - not the type of thing to read in a quick scan!

In the meantime, the engine is still intermittently running rough (when run
at low speed on hot days for 20-30 minutes, clears up in a few minutes under
higher load...). I have found corrosion inside the distributor cap and will
be replacing that, then reassessing - the number of possible causes that I
have come up with is a little staggering - and my mechanic agrees!

I also favour having a look inside the carburetor, but mechanic is hesitant,
saying they're often never the same after, in his experience ... hmm...

====

Charles T. Low
www.boatdocking.com

====

"Bowgus" wrote in message
...
About that ball/spring thing ... it's function is still not clear to me,
but
... it's purpose seems to be to balance the cold water bypass to the 2
sides
of the (e.g. my V6) engine. There's a pic of it ... it's at the top of the
lower (bottom) diagram ... Warm Manifold System. So if one manifold is
cold,
maybe the thermostat is not opening as soon as it should (engine is
actually
overheating) and cold water is being directed more to one manifold (by the
tee valve assembly) rather than to both?

The link ...
http://www.perfprotech.com/home/tech...oling-tips.htm

Hey, just thinking out loud here :-)