Re: [DML] Overheating Questions

["DMC Joe" <dmcjoe@xxxx>]

Stian,

I believe I can answer your question simply. All metals will distort when
exposed to very high temperatures. Cast iron, which was used in most early
engine designs, can withstand much greater temperatures than aluminum. When
an engine overheats internal pressure combined with metal expansion will
usually cause head gasket failure, commonly referred to as "a blown head
gasket". In more extreme cases the engine block be permanently warped.

Your question about the frequency of repeated over-heatings is like asking
how many times can you over inflate a balloon before it will burst. It could
take 10 tries or it may burst on the first try.

Her is the information I believe you want to hear. The PRV-6 can usually
take at least one over heating up to 280 degrees F and several at 240
without serious damage.

The important thing is: DO NOT OVERHEAT YOUR ENGINE! This is a sensitive
subject with me because I know that the PRV-6 is an extremely long lasting
and durable engine and the only major failures I have ever seen are related
to overheating. All the information and components are readily available to
prevent over-heating and owners should keep this on the top of their list of
preventive maintenance when servicing their DeLorean's.

Stian, this was a very good question, if you need more details feel free to
contact me directly.

"We're here to help you"

DMC Joe / De Lorean Services / <dmcjoe@xxxx>
Web Site: <www.deloreanservices.com>
.

----- Original Message -----
From: Stian Birkeland <dmc_norway@xxxx>
To: <dmcnews@xxxxxxxxxxx>
Sent: Saturday, July 15, 2000 12:07 PM
Subject: [DML] Overheating Questions


> My DeLorean has never overheated, at least not in my ownership. I'm
curious
> though, I think it was maybe DMC Joe saying; "The secrets to long PRV life
> is to change the oil and don't overheat it".
>
> Exactly how damaging is overheating to the engine?
>
> If the car has had a couple of overheatings compared to say, 10?
>
> If you stop immediately and have the problem corrected, or say driving two
> hours with a high reading on the temperature gauge.
>
> What about a "total" overheating where you actually loose coolant and damp
> coming up of the engine compartment?
>
> I think many would be interested in hearing the answers from the
> professional mechanics on this list...
>
> I'm just curious...
>
> Best wishes
> Stian Birkeland
> Norway
>
> VIN # 06759