Liquid glass block sealer

[hookit77]

Has anyone ever used this product to seal a small crack in a block ? It is in the water jacket .

 

[mark us]

Blue Devil will work and is quaranteed to work if the engine can run for 50 minutes without having to add water to keep it cool. I've used it and it works been used by a lot of pullers that ran for years afterwards. Available at most autoparts.

 

[gregger]

i had 90 chevy truck i used boiler sealer in it , it ran 4 yrs with it in

 

[Underdog]

Would this or blue devil seal a small leak in the head gasket?

 

[Anonymous-0]

I am about to try something called Steel Seal in a John Deere A. Never have used it before. Has anyone had experience with it, and will it work in these old John Deeres with out a pressure cooling system. Thanks for any Feed Back.

 

[Anonymous-0]

I used the blue devil sealer on my jd a this year and it worked. water was leaking in to left cylinder and out the sides of the headgasket by the spark plugs. Put in one bottle and slowed the leak way down. Added a second bottle and it stopped the leak. Would only leak a few drops out the sides by the plugs when started cold but was no more than a couple table spoons.