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Joined: Dec 2015
Posts: 97
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Dec 2015
Posts: 97 |
Hi anyone fitted a thermostat to a 171 chev 4, do thay run any better,wondering if it might cause over heating in hot weather by restricting coolant flow?
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Joined: Nov 2001
Posts: 19,758 Likes: 63
ChatMaster - 15,000
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ChatMaster - 15,000
Joined: Nov 2001
Posts: 19,758 Likes: 63 |
Restricting flow can be beneficial particularly if air is being drawn into the cooling system. A thermostat is designed to increase the temperature of a cooling system to make heaters more effective and slightly increase the engine efficiency. Generally they don't cause overheating.
How Sweet the roar of a Chevy four!
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Joined: May 2002
Posts: 6,149 Likes: 42
ChatMaster - 6,000
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ChatMaster - 6,000
Joined: May 2002
Posts: 6,149 Likes: 42 |
I wont comment on the early models but a lot of post 60 vehicles the water pump is capable of moving a lot more coolant the the rest of the system can cope with so a thermostat was fitted to restrict the flow to allow appropriate cooling. The early models may well not have this situation as the water pump doesnt appear to have the efficiency of the later models.
Tony
1938 1/2 ton Hope to drive it before I retire
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Joined: Dec 2015
Posts: 97
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Dec 2015
Posts: 97 |
Tonyw a thermostat was optional in the early 4s the twin port head coolant outlet has 2 threaded holes on its insides ,thay are to mount the optional thermostat. Just wondering if any one has one fitted and has there been any problems before i fit one to my expensive newly recon motor
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Joined: Apr 2006
Posts: 3,511 Likes: 47
ChatMaster - 3,000
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ChatMaster - 3,000
Joined: Apr 2006
Posts: 3,511 Likes: 47 |
I have a thermostat in my '28 canopy express and have not had a boilover since I got it running seven years ago. That includes over 2200 miles of driving and 300 of those miles at the 55th Anniversary meet in South Lake Tahoe (high altitude and close to 100 degrees F).
That being said, I also have an oil cooler installed that helps keep the temperature down.
Cheers, Dean
Dean 'Rustoholic' Meltz old and ugly is beautiful!
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Joined: Sep 2009
Posts: 6,689 Likes: 21
ChatMaster - 6,000
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ChatMaster - 6,000
Joined: Sep 2009
Posts: 6,689 Likes: 21 |
Re Chipper's comment.  Charlie 
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