Dick;
I had this problem with one of my Corvettes...same exact
symptoms (or lack of) Finally pulled a head and found a VERY
small break in the head gasket between the 2 center cylinders.
I really had to look hard to find it, but once replaced, was
good as new. Suggest you pull heads and check gaskets and look
for cracks while you are there. Have you ever over-heated it?
Ed (alternate solution: move to a cooler climate)
---- Original message ----
>Date: Sun, 20 Jul 2003 07:40:34 -0700 (PDT)
>From: Dick J <lsr_man@yahoo.com>
>Subject: engine cooling question
>To: lsr list autox <land-speed@autox.team.net>
>
>I keep encountering a little problem that has me baffled. My
SBC needs to have the radiator topped off with about a gallon
of water after every three or four runs. I cannot find any
leaks anywhere. I'm running a standard radiator and catch
tank. Now, my family car (3.8 Buick) is doing the same thing.
About every 500 miles or so I have to add about two or three
quarts of coolant. I have checked everywhere and cannot find
any signs of leaking. Neither car has any visible vapor in
the exhaust. The oil in both motors stays clean and clear.
The only thing I can think of is that there is a very small
transfer into the combustion chambers somewhere, (seeping head
gasket?) and the coolant gets run through the combustion cycle
so slowly that there is no visible vapor in exhaust. What
puzzles me is, if that's what's happening, when the coolant is
still (cool motor) I should be able to see some sign of
compression back into the coolant system - -bubbles or
something. Nope, !
>before
> the thermostat opens, the water/coolant is still. Anybody
got any ideas what's happening here?
>
>Dick J in East Texas
/// unsubscribe/change address requests to majordomo@autox.team.net or try
/// http://www.team.net/mailman/listinfo
/// Archives at http://www.team.net/archive
|