Re: 1982 GTV-6: cooling system/cylinder heads

[Alan Lambert <lechefgerard@domain.elided>]

It sound as if you have some kind of blockage in the return system. As
soon as the thermostat starts to open and the water pump starts
pumping, the water flowing into the "T" shaped metal connector
(driver's side of the radiator) finds it easier to pump into the
reserve tank than back into the engine. ie sumpin's blocked!


--- Richard Welty <rwelty@domain.elided> wrote:
> i'm currently attempting to figure out what is going on with my
> wife's
> GTV-6. a few years ago, i commenced a general rehab project, which
> included
> having the heads redone, and ran out of time and energy before
> finishing
> the work. the car sat in storage for quite some time, and this
> spring,
> went down to Alfas Unlimited so that the work could be finished.
> 
> it's in my garage now, runs, but there are still some mysteries to be
> resolved. at the Nashville convention, at the autocross, while it was
> warming up, at one point it burped up a lot of coolant through the
> overflow
> (the car currently has straight water in it; i will need to drain it
> and
> put in antifreeze before it gets much colder -- known issue.)
> 
> it didn't do at again while i drove it at the autocross, but
> subsequently,
> i was running the engine up to temperature in our garage and it
> burped up a
> lot of coolant again. the reserve tank is basically empty, and as the
> engine warms up, it fills and then starts belching coolant.
> 
> this afternoon, i retorqued the heads, suspecting that a gap might be
> developing which was pressurizing the cooling system, but when i
> started
> the motor and let it warm up, as it approached normal operating
> temperature
> of 175 degrees, the coolant reserve tank filled again and started
> approaching the point of overflow. the instant i shut the motor down,
> all
> the coolant was pretty much sucked back out of the reserve tank
> almost
> instantly.
> 
> any hints as to what is going on here?
> 
> thanks,
>   richard
> 
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=====
Best Regards,

Alan Lambert
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http://careers.yahoo.com

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