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GREAT video !

Coin shape concave welch plug to be replaced.

This type is commonly used on older engines.

Also to plug off necessary machining access holes during manufaturing of the engine.

Later type engines generally uses the cup shaped frost plugs, but the repair procedure is the same except f...

Tx for your GREAT videos. The video series do in fact show a fairly general usage repair procedure for replacing frost plugs in any engine type.

I especially like your "now lets see" attitude, with a calm and progressive explanation of whats going on.

What is the sealer you are using - Permatex ...

GREAT video ! Here in # 3 I belive you are showing the most important part : cleaning up the bore that holds the plug. This is very impotant.

GREAT video !

You are replacing a coin type welch plug. its concave to expand when you press it in.

You should not really use a ballpoint pen hammer, but rather a concave round head hammer to get a more even ("flat") pressure on the plug, finishing off with a flat head punch to make the plug as...