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Stuborn Gudgeon Plug


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Ok the gudgeon plug that its under the waterpump has rusted into its hole. I have destroyed a 3/4" to 1/2" drive adapter trying to undo it with a 2 foot breaker bar with piece of pipe to make it like 5 foot. Now the allen key can turn a little in the hole but it not completely destroyed yet. My dad then suggested I drill a whole in it and try and break the seal with a punch and hammer to no avail. We got a blow torch on it then cooled it with water with no results. Hmm should I try to get it a touch hotter before cooling it?

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You could try heating the area up around the plug then cool the plug with dry ice.

 

If you have already drilled and destroyed the plug, you could use a large (9/16") easy-out. If all else fails, weld a large nut to the plug and take it out that way.

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nah the whole was drilled in the edge of the plug so the allen key indent is still allrite.

In that case, do what I did. Soak that dude regularly with Mouse Milk (or PB Blaster). Then, I took a grade 8, 9/16" bolt with a tall head and welded it into an impact socket so the head sticks out. Used it in my 1/2" impact. Came right out. If that fails, do as previously posted.

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