[Supras] Thermostat question

[Rockey Fox]

The last time I had similar symptoms to yours I resolved the issue by flushing the coolant system (Prestone super flush IIRC). Assuming the thermostat is working properly (should reach operating temperature in about 5 minutes) you may have some restriction in the radiator that doesn't show up under low stress conditions.

Rockey 91T

----- Original Message ----
From: "Charismatisch at aol.com" <Charismatisch at aol.com>
To: supras at supras.com
Sent: Monday, August 6, 2007 1:13:05 PM
Subject: [Supras] Thermostat question

Hi guys and gals,
 
 
simple question:-
 
If the thermostat doesn't open fully, can the car show signs of overheating  
when driven at top speed (i.e. airbubbles in expansion-tank, air in rad.pipes, 
 temp. gauge goes into the red)?
 
At normal speed the car is fine - if I speed it up, I get the typical air  in 
the system, bubbling in the expansion tank, and temp gauge goes into red  
(not a BHG - that was repaired about 600 miles ago along with all the  other 
gaskets!).
 
As I only drive it in the summer a pal of mine suggested taking the  
thermostat out completely and sealing the housing  -  fors and  againsts??
 
Any answers much appreciated!
Derek from Germany 88T Automatic.
 
 



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