[Mgs] MGC: Temp gauge goes up with speed

[Max Heim]

Runs hot at low speed = water flow.
Runs hot at high speed = air flow.

That’s the general rule I’ve heard.

--
Max Heim
'66 MGB

> On Mar 15, 2018, at 6:02 AM, Barney Gaylord via Mgs <mgs at autox.team.net> wrote:
> 
> Most likely lack of air flow.  This is common wiht a re-cored radiator where they used a core with too many fins too close together, so it restricts air flow at road speed.  For that you need a really large fan, or an electric fan to assist the air push.  Better to get back to an original type radiator with more air flow capacity.
> 
> Other possible causes may be a loose fan belt (slippage reducing fan speed), or a loose or missing impellor on the weter pump, or a clogged radiator core restricting water flow.  Possibly a faulty thermostat that does not open all the way.
> 
> Barney Gaylord
> 1958 MGA with an attitude
> http://MGAguru.com
> 
> 
>  <http://mgaguru.com/>At 12:20 PM 3/15/2018 +0000, PaulHunt73 via Mgs wrote:
> 
>> 30 to 50mph on N, 90mph or so goes up to H.
>> 
>> Causes? Cures?
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