Andrew,
Regarding the silvery powdery stuff in the plastic tube.... I can tell
you it's pretty commonly used in many late model cars, especially cars
with different metal alloys in the engine that heat & expand at
different rates. It was the only thing I could get to stop the slow
seeping of coolant into the cylinders on my Ford Aerostar 4 liter motor.
In fact, GM specifies using it in the cooling systems of Cadillacs right
in the factory manual. I believe there might be some lubricating quality
for the water pump, too. I would recommend a radiator shop for the
pinholes, however. The other stuff doesn't sound like anything I'd pour
in my engine.
Alan Myers
San Jose, Calif.
'62 TR4 #CT17602
Andrew Mace wrote:
> On Wed, 12 Aug 1998, Allen Nugent wrote:
>
> >
> > Sorry to bomb this thread, but can anybody offer comments about
> radiator
> > stop-leak? I have 2 reasons for asking:
>
> My own unscientific observations/experience:
>
> I've used, on several different occasions, the kind (I think it's
> called
> Stop-Leak in the U.S.) that consists of a small tin of a silvery
> powder
> poured into the radiator. It was often useful for stopping pinhole
> leaks
> in a radiator core. Don't know what sort of effect it would have on a
> weeping head gasket.
>
> .... * * * * * * * * * * * * * * * * * * * * * *
--
MZ
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