frost plug question

JOB · Jun 16, 2013

I have an engine that has a block heater in a frost plug hole. The block heater is junk. I want to install a frost plug. Can I just tap it in clean or do I need to put a sealant around the plug?

Bob · Jun 16, 2013

They generally will seal "dry" but I use just a tiny amount of Loctite to be 100% sure.

Is it a "Welch plug" that needs to be flattened to grab in place or a cup-type plug?
Welch Plug Installation

Dalex · Jun 16, 2013

I clean up the bore with medium sandpaper, then coat the whole back of the plug with Permatex non hardening sealer and hammer it in ...

JRSutton · Jun 17, 2013

They can seal well enough on their own - but I usually use a little sealer to avoid annoying weeping that can happen sometimes.

showcrop · Jun 17, 2013

I use Loctite Sleeve Sealer.

souNdguy · Jun 17, 2013

i clean the hole.. and use alil #2 permatex on the plug. if the hole is baddly pitted. rub some around ther and let it set a few minutes.

JOB · Jun 17, 2013

I would say the cup type.

JOB · Jun 17, 2013

Thanks Guys.

frost plug question

JOB

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Bob

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Dalex

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JRSutton

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showcrop

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souNdguy

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JOB

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JOB

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