Thermostat
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New User
Joined: Mar 2004
Posts: 7
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From: Atlanta
Thermostat
Hey guys,
I changed my thermostat yesterday along with my top and bottom hose, now I see an small sizzle bubble leak around where the bolts go through the thermostat housing. It looks like water is making its way up my thermostat bolt holes? Is this possible? Should I put some bolt lock sealer on the bolts prior to installing them? The bolts are tight as they would go so I know thats not the issue. Thanks
I changed my thermostat yesterday along with my top and bottom hose, now I see an small sizzle bubble leak around where the bolts go through the thermostat housing. It looks like water is making its way up my thermostat bolt holes? Is this possible? Should I put some bolt lock sealer on the bolts prior to installing them? The bolts are tight as they would go so I know thats not the issue. Thanks
Elder User
Joined: Aug 2003
Posts: 694
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From: formerly Brooklyn NY now
I wouldnt put any kind of thread lock on em as a matter of fact id prolly put anit sieze on em chances are you aint got em tight enough or the thermostat isnt seated right. When you silicone down the gasket ya make sure that you put silicone around the bolt holes ont he gasket
Posting Guru
Joined: Nov 2003
Posts: 1,221
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From: Homer, Alaska
Re: Thermostat
Originally posted by mac777daddy
Hey guys,
I changed my thermostat yesterday along with my top and bottom hose, now I see an small sizzle bubble leak around where the bolts go through the thermostat housing. It looks like water is making its way up my thermostat bolt holes? Is this possible? Should I put some bolt lock sealer on the bolts prior to installing them? The bolts are tight as they would go so I know thats not the issue. Thanks
Hey guys,
I changed my thermostat yesterday along with my top and bottom hose, now I see an small sizzle bubble leak around where the bolts go through the thermostat housing. It looks like water is making its way up my thermostat bolt holes? Is this possible? Should I put some bolt lock sealer on the bolts prior to installing them? The bolts are tight as they would go so I know thats not the issue. Thanks
Post Fiend
Joined: Jan 2003
Posts: 9,748
Likes: 16
From: Connecticut
Don't put any thread lock on the bolts!
Is there a gasket for the T-Stat housing? If not, you might try making your own with some Permatex "Water Pump & Thermostat Housing" RTV Silcone which is made for that particular purpose. It works very well. Clean both surfaces real good with solvent and a fine wire brush before applying a thin, even coat of the RTV. Make sure it gets entirely around the bolt holes.
Overtightening, or uneven tightening, of the bolts can warp the housing and cause leaks. You should get a torque wrench and torque bthe bolts to 120 in-lbs.
Is there a gasket for the T-Stat housing? If not, you might try making your own with some Permatex "Water Pump & Thermostat Housing" RTV Silcone which is made for that particular purpose. It works very well. Clean both surfaces real good with solvent and a fine wire brush before applying a thin, even coat of the RTV. Make sure it gets entirely around the bolt holes.
Overtightening, or uneven tightening, of the bolts can warp the housing and cause leaks. You should get a torque wrench and torque bthe bolts to 120 in-lbs.
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