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Joined: Jul 2009
Posts: 302 Likes: 4
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Jul 2009
Posts: 302 Likes: 4 |
I have a new Sulphon bellows type thermostat in my 216.It does not regulate the temperature very well.The engine temp goes very high before opening and sometimes it does not close at all.Are these nos thermostats too old for use ? does the gas in the bellows slowly leak out after 50 years?
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Joined: Feb 2011
Posts: 3,136
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Feb 2011
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They look interesting, don't they...? But as your experience already indicates...Be good to your motor...Go with a modern thermostat...
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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Joined: Nov 2001
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Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
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The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Dec 2009
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ChatMaster - 4,000
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The thermostat is listed as an accessory in the accessory catalog. If that's so and it's an accessory it must not be needed at all except for extreme situations or weather. Take it out and see what happens. 
Last edited by wawuzit; 12/05/12 03:01 PM.
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Joined: Feb 2011
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ChatMaster - 3,000
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ChatMaster - 3,000
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It must not be needed at all except for extreme situations or weather. Take it out and see what happens. It might be interesting to "see what happens"...But if your sure your radiator and water pump are fine, why bother...? Then there's the problem with your engine not ever coming up to operating temp....Who'd want that...?
1947 Fleetmaster Sport Coupe VCCA # 47475
If it's not wearing a Bowtie...It's not properly dressed...!
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Joined: Jul 2009
Posts: 302 Likes: 4
Backyard Mechanic
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OP
Backyard Mechanic
Joined: Jul 2009
Posts: 302 Likes: 4 |
I'll have to replace the thermostat. Thanks all.
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Joined: Nov 2012
Posts: 604
Oil Can Mechanic
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Oil Can Mechanic
Joined: Nov 2012
Posts: 604 |
FWIW, I never install a new (or used) thermostat without testing it in water on the stove with a dependable stem-type thermometer. Also, I hold it with pliers so it can only take heat from the water. You can see at what temp they begin to open and watch the temp to full open. I have found several new thermostats that I would not install. (No, I ain't very smart -I simply want to know what's going on before I depend on the stat.)
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Joined: Nov 2001
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ChatMaster - 15,000
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Just "smarter than the average bear booboo".
How Sweet the roar of a Chevy four!
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Oil Can Mechanic
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Oil Can Mechanic
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