try retensioning your fan belt! you are experiencing slippage at speed due
to the resistance of the coolant against the water pump's impellers! at
speed the slippage is causing not enough coolant to flow through the system
for the amount of heat build up at speed. you slow down and the belt
slippage stops and you get proper circulation again.
it is a frequent problem i have seen take out some rather wel lprepared race
cars!
try this! if you can rotate the fan blade and the belt slips a tiny bit at
all, you are too loose! or you have a very old glazed and ready to break
belt! first try retensioning the belt. if the belt is properly
tensioned you can "rock" back and forth the crankshaft by rocking the fan
blades !
fix it anf go out and play cars withthe other kids!!!:)
chuck.
----- Original Message -----
From "David Cull" <davidcull at hotmail.com>
To: <spridgets@autox.team.net>
Sent: Monday, August 19, 2002 8:43 AM
Subject: Temperature Increase at Speed
> Help needed again,
>
> A great day for a drive on Sunday, about 78F and no humidity or clouds.
> This was my longest excursion so far after getting my 65 Midget on the
road
> last week.
> After travelling for about 15 minutes at 50mph the temp went up to 220F
and
> stayed there. When I slowed down to travel through a small town, the temp
> dropped to 190F, then returned to 220F once I speeded up again. This is
the
> opposite to what should be happening. I changed the Thermostat to a 160
> prior to driving it this weekend, everything seems to be working okay.
>
> Any suggestions?
>
> Thanks for the help,
>
> Regards,
>
> Dave
>
> 65 MKII
>
>
> _________________________________________________________________
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