Radiator sealant

Richard G. · Nov 21, 2011

On a non pressurized cooling system, I have a couple of very tiny seeps in the center of the core. Is there some kind of sealant I can use in this situation?
Thanks, Richard
PS: this is a thermo siphon system with no water pump.

Billy Shafer · Nov 21, 2011

I have used the copper in the tube. On some small leaks. But that was on a pressurerised system. Might work on yours.

ldj · Nov 21, 2011

Use about a tbs of black pepper.

rrlund · Nov 21, 2011

Alumaseal. There's something called K-Seal too,but it's quite expensive and looks to me to be nothing but Alumaseal in a liquid carrier.

rustyfarmall · Nov 21, 2011

(quoted from post at 06:26:30 11/21/11) On a non pressurized cooling system, I have a couple of very tiny seeps in the center of the core. Is there some kind of sealant I can use in this situation?
Thanks, Richard
PS: this is a thermo siphon system with no water pump.

Silver Seal. It's been around as long as these old tractors that we love and it still works.

Anonymous-0 · Nov 21, 2011

I 2nd the pepper,,,,That stuff really works....

old · Nov 21, 2011

The best stuff I have found so far is Bar's Leak liquid copper Block Seal. I have used it in many machines. Cars, trucks and tractors. I used it in the cooling system of my Farmall BA which I only used used parts to build it as in no new gaskets even and it worked and has worked great

Lamar Fudd · Nov 21, 2011

I second the Bars Leaks. Had several small size holes in my John Deere B radiator; dumped in a can and ran the garden hose while the engine warmed up-yeah, it was that big a leak. Took about twenty minutes anf finally quit leaking. Had it at least five more years; only put in water and would drain before winter. Never dripped a bit.

Richard G. · Nov 21, 2011

Thanks for all the replies. I have used Bars leak before and the Alumaseal stuff in pressurized systems.
Richard

gene bender · Nov 21, 2011

There is no sealer that will work without a water pump to move the coolant around so the sealant just wont be able to get to the leak in the radiator. You can try but it will just go to the bottom and set there. If its just small like you say try and use some rubber cement apply at the area where it seeps and it should work. You can find good used ones for around 100 which tractor do you have.

Bill(Wis) · Nov 21, 2011

Horseapples were used in Model T Fords with some success.

Richard G. · Nov 21, 2011

(quoted from post at 14:19:32 11/21/11) Horseapples were used in Model T Fords with some success.

Well, You caught me. This is a 1923 Model T Ford I am working on.
Thanks for all the info.
Richard

Anonymous-0 · Nov 21, 2011

OK I know it sounds crazy but this works...put in a couple of cans of PET milk. Just pour it in and let the machine run. Leaks will stop, pressurized or not. Won't plug up internals. Just used it on my Ford Bronco and have used it on a couple of tractors over the years. No joke.

Radiator sealant

Richard G.

Well-known Member

Billy Shafer

Well-known Member

ldj

Well-known Member

rrlund

Well-known Member

rustyfarmall

Well-known Member

Anonymous-0

Well-known Member

old

Well-known Member

Lamar Fudd

Member

Richard G.

Well-known Member

gene bender

Well-known Member

Bill(Wis)

Well-known Member

Richard G.

Well-known Member

Anonymous-0

Well-known Member

Similar threads