Thermostat
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,119
Likes: 213
From: Pittsburgh PA
Thermostat
Does the spring go up or down?
The AIM doesn't address it. The other repair manual is non-committal, saying it could be spring up. The guy at the parts store says spring down.
:crazy:
The AIM doesn't address it. The other repair manual is non-committal, saying it could be spring up. The guy at the parts store says spring down.
:crazy:
Le Mans Master
Joined: Oct 2002
Posts: 5,714
Likes: 6
From: Silver City NM
St. Jude Donor '05-'07
Re: Thermostat (foundvettelifeisgood)
You should have posted this as a poll! :D
I think the spring goes down INSIDE the manifold. As the water/antifreeze heats up inside the engine it causes the thermostat to open allowing the water to move through the upper hose into the radiator and cool down via air moving through the radiator fins.
But I could be wrong :lol:
Dep
I think the spring goes down INSIDE the manifold. As the water/antifreeze heats up inside the engine it causes the thermostat to open allowing the water to move through the upper hose into the radiator and cool down via air moving through the radiator fins.
But I could be wrong :lol:
Dep
Thread Starter
Melting Slicks
Joined: Apr 2001
Posts: 2,119
Likes: 213
From: Pittsburgh PA
Re: Thermostat (Dep)
Dep--you're right that it should be a poll. Here's what the Haynes Manual says:
"Note how's it's installed (which end is up), then remove the thermostat."
Well, what if Bubba before you put it in upside down??
"Make sure the correct end faces up--the spring is normally directed into the housing."
:skep:
"Note how's it's installed (which end is up), then remove the thermostat."
Well, what if Bubba before you put it in upside down??
"Make sure the correct end faces up--the spring is normally directed into the housing."
:skep:
Senior Member since 1492
Joined: Aug 2000
Posts: 87,921
Likes: 156
From: Just because I'm paranoid doesn't mean people aren't out to get me...
St. Jude Donor '09
Re: Thermostat (foundvettelifeisgood)
I've always installed them with the thick, round cylendrical side inside the intake and the side that looks like a little dome on the outside. I also drill a 1/8th inch hole in the base just in case the stat should fail. :thumbs: :chevy
Drifting
Joined: Nov 2003
Posts: 1,410
Likes: 0
From: chicago IL
Re: Thermostat (1970 Stingray)
yep, spring down into the manifold, i also drilled two holes, heard that it puts less stress on the water pump and improves cooling. :cheers:
[Modified by killervette666, 5:58 PM 11/17/2003]
[Modified by killervette666, 5:58 PM 11/17/2003]
Le Mans Master
Joined: Oct 2002
Posts: 5,714
Likes: 6
From: Silver City NM
St. Jude Donor '05-'07
Re: Thermostat (killervette666)
never heard of the drilling the hole thing but BOY...have I seen what happenned when the thermostat stuck!!! Like Mount Vesuvious erupting from the radiator!!! :D
Wonder if NO thremostat is a good idea for a car that doesn't run on the street at all? :confused:
Dep
Wonder if NO thremostat is a good idea for a car that doesn't run on the street at all? :confused:
Dep
Le Mans Master
Joined: Feb 1999
Posts: 6,807
Likes: 0
From: Hoosier
Cruise-In III Veteran
Re: Thermostat (Dep)
Drilling a hole or two will allow some air to find it's way out of the engine, and will take it longer to warm up. But if the air is there, then you didn't flush and fill properly to begin with. The holes won't really allow it to run cooler unless you drill a bunch of them.
If the t-stat does stick closed then the holes won't save you. Imagine a rag stuck in there. Some fluid will pass but not enough to maintain a safe temp. The water pump really doesn't care if the t-stat is open or not. There is always a loop of flow. The open t-stat just increases the length of the loop. Like when your heater hoses are valved open or shut.
180 is the best minimum to run your engine. Actually 190 +/- 5 constant is best overall.
Controversial subject. :cheers:
If the t-stat does stick closed then the holes won't save you. Imagine a rag stuck in there. Some fluid will pass but not enough to maintain a safe temp. The water pump really doesn't care if the t-stat is open or not. There is always a loop of flow. The open t-stat just increases the length of the loop. Like when your heater hoses are valved open or shut.
180 is the best minimum to run your engine. Actually 190 +/- 5 constant is best overall.
Controversial subject. :cheers:
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Moderator
Joined: Jun 1999
Posts: 7,117
Likes: 51
From: Dove Mountain Arizona
Re: Thermostat (foundvettelifeisgood)
Spring aint got nuttin' to do with it. Put the brass sensor in the manifold first (down in the engine water). When it gets hot it causes the spring to 'coil' and open the valve. C'mon guys..... :crazy:
Le Mans Master
Joined: Apr 2001
Posts: 5,941
Likes: 281
From: Was New Orleans but swam to Baton Rouge LA
Cruise-In IX Veteran
Re: Thermostat (foundvettelifeisgood)
I always install them with the spring down into the block and the pointed side up into the neck to the radiator. I do not thing they sit very well if you install them upside down. :chevy
Moderator
Joined: Jun 1999
Posts: 7,117
Likes: 51
From: Dove Mountain Arizona
Re: Thermostat (Dep)
Brass sensor??? I thought it was a pellet???
:yesnod:
Dep
:yesnod:
Dep
