Fluctuating Radiator Fluid

[Stephen Birtles]

when using a sight glass to measure fluids you will find that there is
a cold high level low level and a hot high low level in the sight glass .
Stephen 77fc35 no sight glass



--- In WanderlodgeForum@yahoogroups.com, Curt Sprenger
wrote:
>
> 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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