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thermostat location, early vs late
Posted by: momach ()
Date: October 09, 2021 10:08AM

As I understand it, early models located the thermostat bellows near #5 and #6 cylinders. Lates were moved closer to the damper doors.
Any reason why? Would it matter which was used on any engine, obviously with the correct rod length?

On the Wet side of Washington State

one too many cars,(maybe)

multiple Corvairs.
1962 Buick Skylark
1967 Datsun 2000 roadster

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Re: thermostat location, early vs late
Posted by: irfgt ()
Date: October 09, 2021 12:41PM

Centering the thermostat in the shroud on late models gave it a better sampling of the air temperature. Really makes little difference.

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Re: thermostat location, early vs late
Posted by: joelsplace ()
Date: October 09, 2021 01:10PM

It removes a lot of weight from the rear of the car but does move the thermostat's weight rearward.

Joel
Northlake, TX
5 Ultravans, 129 Corvairs and counting...

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Re: thermostat location, early vs late
Posted by: American Mel ()
Date: October 09, 2021 07:13PM

joelsplace Wrote:
-------------------------------------------------------
> It removes a lot of weight from the rear of the car but does move the thermostat's weight rearward.


confused smiley confused smiley confused smiley confused smiley
I seriously doubt you could even see the weight bias difference on a set of auto scales.
They are only a matter of a couple inches different from each other.

-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
WA. state, 1 mile south of the Canadian border, I am not at the end of the world, but you can see it from here.

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Re: thermostat location, early vs late
Posted by: joelsplace ()
Date: October 09, 2021 07:20PM

My scales only have a 1lb resolution so no they wouldn't show it. Maybe you could run your battery on the low end of full to make up for it.

Joel
Northlake, TX
5 Ultravans, 129 Corvairs and counting...

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Re: thermostat location, early vs late
Posted by: Frank DuVal ()
Date: October 09, 2021 07:35PM

Quote
Joel
It removes a lot of weight from the rear of the car but does move the thermostat's weight rearward.

Missing word or two? What removes a lot of weight from the rear while adding weight to the rear? The two inches of rod?confused smiley

Frank DuVal

Fredericksburg, VA

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Re: thermostat location, early vs late
Posted by: joelsplace ()
Date: October 09, 2021 07:44PM

Yes

Joel
Northlake, TX
5 Ultravans, 129 Corvairs and counting...

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Re: thermostat location, early vs late
Posted by: momach ()
Date: October 10, 2021 02:50PM

I think what Joel is saying, is that it matters not. Run what you have.

On the Wet side of Washington State

one too many cars,(maybe)

multiple Corvairs.
1962 Buick Skylark
1967 Datsun 2000 roadster

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Re: thermostat location, early vs late
Posted by: JimBrandberg ()
Date: October 10, 2021 07:01PM

Early lower shroud has 2 bolts in the front, Late has 1. Further weight reduction? Especially when the holes don't line up and you just leave them off altogether...

Jim Brandberg
Isanti, MN
CorvairRepair.com



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Re: thermostat location, early vs late
Posted by: Frank DuVal ()
Date: October 10, 2021 09:16PM

Yep!grinning smiley

Frank DuVal

Fredericksburg, VA

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Re: thermostat location, early vs late
Posted by: RKF ()
Date: October 11, 2021 05:19AM

Joel is correct. It is the weight of the thermostats that causes the back end to break loose on tight curves. If it wasn't for the thermostats, Naders's book would have been titled "Safe, But Cold, at Any Speed."

Knoxville TN

1962 Corvair Rampside
1963 Corvair Spyder Convertible (project)
1966 Corvair Monza Convertible

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Re: thermostat location, early vs late
Posted by: Timothy Shortle ()
Date: October 11, 2021 09:09AM

The LM thermostat brackets were riveted onto the lower shrouds whereas the EM used bolts and welded nuts.
A further reduction of weight.

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