I think it's the design of the cooling system of the engine. I was at a
British Car show today and looked over the cooling systems in addition to
checking out the rest of the cars and their radiators aren't any larger than
ours nor do any have shrouds. The rad for a TR6 is about the same size as
ours even though the engine is quite a bit bigger, and everyone told me
their cars run very cool.
BTW, several owners had Roadsters in the past including one guy who used to
race them. He now has a super low mileage 1959 Bug Eye Sprite in mint
condition.
Mike
----- Original Message -----
From: "Charlie" <cehubbard@home.com>
To: <roadster@rcn.com>; "Datsun Roadsters" <datsun-roadsters@autox.team.net>
Sent: Sunday, June 10, 2001 5:52 PM
Subject: Re: No Thermostat
> Fred,
>
> Been there, done that. Mine is one of many 1500's that run too hot.
Frankly,
> I think the damned things just have lousy cooling systems and are geared
way
> too low for the highway. I plan to run with a thermostat but am not
holding
> out a lot of hope for it to cool off much.
>
> Charlie Hubbard
> 1964 SPL310
> Flower Mound, Texas
> http://members.home.net/cehubbard/tdroc/
>
>
> Date: Fri, 8 Jun 2001 23:38:45 -0700
> From: "roadster" <roadster@rcn.com>
> Subject: Re: No Thermostat
>
> Charlie,
>
> Something sounds wrong with your engine overheating situation. You say the
> block has been flushed twice?
>
> A couple years ago when I had my block flushed, I checked the water
jackets
> before doing any rebuilding. I was shocked to find pieces of metal casting
> inside the jackets. Some of these pieces were several inches long. I
fished
> them out thru the freeze plug holes. You can imagine that metal debris
like
> this can impede the flow of coolant in the engine, and that other gunk can
> build up behind it creating a blockage. (After assembly, the engine never
> ran hot.)
>
> This was no fault of the block tank flushing. It was a by-product of the
> manufacturing process. A long time ago another 2000 engine block of mine
had
> a constricted passage, and I opened it up by breaking off the metal
casting
> that constricted the flow of coolant from the block into the cylinder
head.
> The engine ran cooler after that.
>
> Not saying that this is the situation with yours, just a possibility to
> investigate.
>
> Fred - So.SF
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