Fluctuating Radiator Fluid

[Curt Sprenger]

Steve,
A couple things...

No leaks, no coolant in oil, etc...seems to me colder climate vs warmer
climate is taking place. The bus is in colder climate now than earlier
this year, or last year at this time. Cold = shrink, warn = expand. I
believe you are correct in that the thermostat opened and did it's
thing, and so did the block heater. As you describe, the process seems
normal. Top it off and keep an eye on it. And anything in between plays
on our minds. Unless there are leaks you should be good to go.

The second thing...I will not be at our AZ home as you pass through.
That is my loss. We'll keep trying to connect. Don't forget about the SW
Bird Rally.

Curt Sprenger 1987 PT38, Anaheim Hills, Calif.


trvlngnrs wrote:

> My 8v92 was cold yesterday, and I noticed the radiator fluid level was
> half way up the sight glass. I had just recently filled it.
>
> I drove about for 20 minutes, and the sight glass was empty. There is
> no water in the trans fluid or oil. No noticable leaks.
>
> This morning it was still empty. I turned the block heater on, to
> preheat it, and about 2-3 hours later the sight glass was full of
> green fluid.
>
> I drove it back to the storage yard, and it was still full.
>
> Any idea what is going on? I thought that it was empty because the
> thermostat had opened and drained the fluid into the engine, but I
> don't understand why it would raise back up with the block heater on.
>
> Should I top it off again?
>
> Steve Harrie
> St. George, UT
> '86 PT38 Leaving for Quartzsite Monday.
>
>
>
>
>
>
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