Freeze plug blowout

[cherokee-at-16]

My Comanche hates its 3rd (from the front) freeze plug. Its blown out two of them. Compared to the other 4, its hole seems a little bigger. Basically you can just pop the plug into place and it will look fully seated before start to bang it in.

The first plug it blew out i had used RTV. lasted for 50 minutes of run time.
The second plug i didnt use RTV, lasted for like 3 weeks of local driving and one highway trip.

A third plug is going in tomorrow and the question is.... would you jb weld in a steel plug, use a rubber expanding plug, or fucking tack weld it to the block.

[sardo_67]

Bend the rim of the plug out some, then Jb weld it

[Hydra]

If you jb weld it in, you might as well just tack it in cuz it no longer will do its job.

Rubber plugs are the worse.

[cherokee-at-16]

yeah Ive already put in another an jb welded it. if the coolants going to freeze and needs to blow one out then there are 5 others. If they made plugs that were like less then a millimeter bigger then I would have went for that, but they dont.

i bought a rubber one to keep in the truck for if/when it comes out again.

[sardo_67]

Uhhhh freeze? No, that should never happen. What are you running for coolant?