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Joined: Jan 2002
Posts: 78
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Jan 2002
Posts: 78 |
I have a '37 Chevy sedan running a '50 216, which I rebuilt three years ago. New radiator. I consistently have had a problem with the cooling system burbing as the coolant warms. Running a 180 stat; flushed radiator and block and installed new stat two weeks ago in attempt to eliminate problem now described: Engine warms up, heat continues upwards to 212, then the engine burbs -- a rather gurgling expulsion of coolant out the overflow tube -- and then the temperature settles to around 180. Does this in most cases, though I believe it doesn't happen when the radiator is very low. Keep radiator filled just so coolant (water in summer) touches bottom of radiator fill tank. No coolant in the engine oil and hoses are new, (new head gasked when rebuilt) so don't think air is being sucked into the water jacket some how, but I could be wrong. All suggestions considered. Thanks. Jim Leman 847-543-1090 info@newsletterbureau.com
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
Hi Jim, I would suggest you remove the thermostat and drill a very small hole in it to allow the air to pass through (and water also). This should remove the trapped air that is giving you the problem. 
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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Joined: Jan 2002
Posts: 78
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Jan 2002
Posts: 78 |
Ray -- Took your advice. It was the simpliest fix I've been able to do in a long time. Thanks for the tip! Jim Leman
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Joined: Dec 2001
Posts: 11,162
ChatMaster - 10,000
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ChatMaster - 10,000
Joined: Dec 2001
Posts: 11,162 |
While you are at it why not put a mixture of 50-50 coolant in that cooling system, it ain't just anti-freeze any more. Water only should be used for drinking (when there isn't any beer or coffee available) and to wash your baby in, or your blow-up baby Ala Elvira!, which ever is your preference.
Life's a long winding trail, love Jesus and ride a good horse!
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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 agree with Mrmack. Modern coolant does a lot more but an excess is as bad or worse than not enough. If you use a concentrate read the bottle before pouring it in and mix into a bucket before putting in radiator.
1938 1/2 ton Hope to drive it before I retire
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Joined: Jan 2002
Posts: 78
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Jan 2002
Posts: 78 |
Added a 50/50 mixture today gentlemen; it's getting cold here in the north, so it's time. Usually run a 50/50 but didn't this summer with the coolant burbing out everyday. With the problem now behind me the 34 below mixture in the radiator should hold me through to spring and beyond. Thanks for the suggestion.
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Joined: Oct 2003
Posts: 33
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Oct 2003
Posts: 33 |
I've heard others reccommend drilling a small hole in the thermostat as well.
Here's my silly question, how big is a small hole?
Kelly
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Joined: Dec 2001
Posts: 10,379 Likes: 1
Technical Advisor ChatMaster - 10,000
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Technical Advisor ChatMaster - 10,000
Joined: Dec 2001
Posts: 10,379 Likes: 1 |
Anything around 1/16 inches.
RAY Chevradioman http://www.vccacolumbiariverregion.org/1925 Superior K Roadster 1928 Convertible, Sport, Cabriolet 1933 Eagle, Coupe 1941 Master Deluxe 5-Passenger Coupe 1950 Styleline Deluxe 4-Door Sedan 1950 Styleline Deluxe Convertible 2002 Pontiac, Montana, Passenger Van 2014 Impala, 4-Door Sedan, White Diamond, LTZ 2017 Silverado, Double Cab, Z71, 4X4, White, Standard Bed, LTZ If you need a shoulder to cry on, pull off to the side of the road. Death is the number 1 killer in the world.
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