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#1
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Thermostat location?
I'm looking for confirmation on where the thermostat is installed.
I have a 1966 sprint 6, does the thermostat go first, then the by-pass spacer, then neck? ***OR*** By-pass spacer, thermostat, then the neck? Thanks for your assistance!! |
#2
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1966 WITH BYPASS
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When I die, I want to go peacefully like my grandfather did, in his sleep. Not screaming like the passengers in his car. |
#3
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From the 66 tempest shop manual, the only image i can find shows flow direction from the by-pass to the pump. Now according to the image you sent and other similar images i have seen shows the thermostat installed first. So in that configuration and by looking at the shop manual this means that the pump is drawing fluid from the top of the radiator, correct?
This is why I am asking what seems to be a silly question. |
#4
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The pump pulls cool water from the radiator & stuffs it into the block.
The Thermostat actually resides in the Cam cover. Happy Cammin'!
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"At no time did we exceed 175 mph.” Dan Gurney's truthful response to his and Brock Yate's winning of the first ever Cannonball Baker Sea-to-Shining Sea... Still have my 1st Firebird 7th Firebird 57 Starchief |
#5
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I always have installed the thermostat in the bypass housing on a 66-68 OHC-6 engine, the purpose of the bypass housing is to have a small flow of coolant bypass the thermostat and keep some fluid moving at all times, Putting it before the bypass housing defeats the purpose I think. I have always thought the illistration was wrong in the manual.
But who knows I may have done it wrong for 40 years!
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Jeff R 60 Jaguar Mark 2, 3.8L Automatic 67 Sprint Firebird 230 OHC-6 4-Speed A/C 78 Catlina Safari, Pontiac 400 powered 77 Astre Formula, 215 Buick V-8 T-5 73 Lemans Safari, 400 4bbl 4-speed 71 Catalina Enforcer, 455 4bbl 06 Mallet Solstice #024 LS2, Now with a Tremec 6060 6-speed! 2012 F-150 Echo Boost (My local Ford Dealer SUX!!!) 2020 Dodge Charger Scat pack (recovered) |
#6
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Quote:
What good does the bypass do if it's "after" the thermostat?
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"Keep your stick on the ice...and your head up." 1910 Buick Model 19 Touring 1923 Cadillac 5 passenger coupe 1933 Pontiac 4 door sedan project 1933 Sport Coupe project 1968 GTO, 428, THM400, 2.73 posi cruiser 1969 Chevrolet C10 Fleetside, 350, THM400 1958 Buick Caballero 4dr hdtp wagon 2018 Ram 1500 to tow stuff 2024 Buick Encore GX |
#7
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Stop the press!
You know Jeff I should have caught that, but swung and missed
The recessed Thermostat seat in the Cam House is for non-use of a By-Pass, but PMD realized the need to get a small amount of Coolant to flow before full warm-up. This is why they used the By-Pass. The By-Pass also has a recessed seat for the thermostat which is re-located to allow a small amount of flow before the Thermostat reaches operating temp (OPENS). So the sequence is Cam House, Gasket, By-Pass, Thermostat, Gasket, Outlet. You would think I could recite this stuff by now
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When I die, I want to go peacefully like my grandfather did, in his sleep. Not screaming like the passengers in his car. Last edited by Jeff Hamlin; 02-26-2024 at 07:17 AM. |
The Following User Says Thank You to Jeff Hamlin For This Useful Post: | ||
#8
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I've been beating my head against the wall on this stupid little issue... on one hand I have the manual saying one thing, illustrations showing another.
THANK YOU for showing the correct way, and confirming what I thought to be correct. Time to tear down and reinstall. Also, thank you for posting on the Cammers Facebook page! |
#9
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Hey, what's a couple of gaskets among friends
Thank the other Jeff for pointing out the flub. Cheers.
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When I die, I want to go peacefully like my grandfather did, in his sleep. Not screaming like the passengers in his car. |
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