| |
Click on image for the lowdown. 
====
| | | Forums66 Topics128,014 Posts1,055,332 Members48,419 | | Most Online14,466 Apr 26th, 2026 | | AD Chevy Trucks Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down with Ads! Again, thanks! | | | | Joined: Feb 2009 Posts: 26 Apprentice | | Apprentice Joined: Feb 2009 Posts: 26 | whats the average running temperature of a stock 235 engine? The reason i asked is because i put some "stop leak" in my radiator and it doesnt seem like the engine gets hot enough to open the thermostat, atleast with the radiator cap off i cant see the water circulating. I had it idling for a good 1/2 hour. I know the 'stat is good because i took it out and checked it with heat.
Rust Lover
| | | | | Joined: Feb 2009 Posts: 26 Apprentice | | Apprentice Joined: Feb 2009 Posts: 26 |
Rust Lover
| | | | | Joined: Dec 2004 Posts: 322 'Bolter | | 'Bolter Joined: Dec 2004 Posts: 322 | wesfab, I can't help you because I have the same problem with mine. What does your temp gauge read? I have had my radiator out and flushed when I had it repaired for leaks and have had several different 180' thermostats, that all opened in hot water, but still my gauge only reads around 160'.
After long drives my radiator and heater hoses are too hot to touch and it blows warm (not hot) air. I chalk it up to a faulty gauge. Maybe someone will chime in that is better informed.
Blue 50
1950 3100 w/57 235 Patrick’s Saginaw 4 speed and 3:55 rear end | | | | | Joined: Sep 2006 Posts: 2,393 Shop Shark | | Shop Shark Joined: Sep 2006 Posts: 2,393 | It's possible the block needs flushing too. Rust slag can clog the system or perhaps your water pump needs to be checked.Try running the motor withouut the thermostat in place and see wht the temp runs then. My temp isusually around 160.
Last edited by DrewP; 03/05/2009 3:21 PM.
Drew
| | | | | Joined: Sep 2001 Posts: 29,269 Bubba - Curmudgeon | | Bubba - Curmudgeon Joined: Sep 2001 Posts: 29,269 | Do what Drew suggested, with the radiator cap off. When you reach stable operating temperature, measure the temperature of the fluid in the radiator tank (a cooking thermometer would be OK). This would let you know how close your gauge is to actual temperature.
| | | | | Joined: Nov 2005 Posts: 1,048 'Bolter | | 'Bolter Joined: Nov 2005 Posts: 1,048 | Are you sure the thermostat is in right side up | | |
| |
| |