[Tigers] Heater control valve

[Theo Smit]

The main worry, as regards cooling system pressure, is the end tanks on the heater core. Your radiator will be more than happy at anything the rest of the system can handle. 

Griffin recommends a 16 to 18 pound cap maximum. 

Cheers, 
Theo 




From: "tigers" <tigers at autox.team.net> 
To: "tigers" <tigers at autox.team.net> 
Sent: Monday, March 28, 2022 6:17:10 PM 
Subject: [Tigers] Heater control valve 

Hello All 

With a aluminum radiator, what should the pounds of the cap should be on the overflow tank? I have had a 13 pound cap on the overflow tank and have gone through 3 heater control values in 5700 miles and they all leak. 

So now I am thinking about a 90 degrees manual valve with a very short handle that would fit in the stock location as the heater control valve utilizing the bracket of the heater control valve that would allow me to bleed all air from the motor at the highest point, which I believe is the heater core,. The idea is try and and retain as close to possible the stock correct look, be able to bleed any air when refilling the radiator and have the ability to manually turn on the heater once to twice a year as I live in a very moderate environment and drive the car year round. 

Any ideas as to a part number or manufacture that would meet these requirements or any other ideas? 

Thanks 

Joel Martin 

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