The Ford Barn - View Single Post

Tom Wesenberg · 06-30-2016, 07:02 AM

Cut out a cork or leather gasket to get by with for now. Add a correct gasket to your next Model A parts order. The cap should be sealed, but the top tank is open to the overflow pipe, and that's the ONLY place coolant should come out if the radiator is too full, boils, or is plugged. Many radiators had tube which are partially or fully blocked and this limits the return flow of coolant, then the top tank fills up and goes out the overflow pipe until the coolant get low and the engine overheats. Then the owner starts looking for the reason the engine overheats. In reality the engine isn't overheating, but the radiator can no longer do it's job.

06-30-2016, 07:02 AM	#2
Tom Wesenberg Senior Member Join Date: May 2010 Location: Mpls, MN Posts: 27,582	Re: 31 rad cap leak Cut out a cork or leather gasket to get by with for now. Add a correct gasket to your next Model A parts order. The cap should be sealed, but the top tank is open to the overflow pipe, and that's the ONLY place coolant should come out if the radiator is too full, boils, or is plugged. Many radiators had tube which are partially or fully blocked and this limits the return flow of coolant, then the top tank fills up and goes out the overflow pipe until the coolant get low and the engine overheats. Then the owner starts looking for the reason the engine overheats. In reality the engine isn't overheating, but the radiator can no longer do it's job.