Main Oil Galley Plug removal tips?

[artwangler]

I've got a 2.7 Mag case I am removing the plugs to check the galley for debris. The current plugs are aluminum and the shape of bottle cap. I drilled and 'tapped' on of the plug and attempted to extract the cap with a bolt. Too tight. I enlarged the hole and used a long 'drift' to try to knock out the opposite plug. I am deforming the center of the plug from the inside, but it won't budge.
I tried 'heat cycling' the metal with a torch and then supper cold fluid from an inverted 'dust off' can.
These plugs were installed by Walt at Competition Engineering in California. I'll call Walt again for more of his advise, but I wanted to ask you folks for you opinions before 'leaning' on Walt again. (I have 'leaned' on most of the well known engine builders for advise and don't want to abuse that privilege.)

[RedCoupe]

I would guess that the plugs are probably glued in with some type of hardening sealant or locktite red. Have you heated it long enough to soften the stuff?

[Neil Harvey]

Originally Posted by skiod

There is an easier way to remove the freeze plugs. I seen you have a battery operated hand drill. You can use a self tapping screw or bolt to screw into the plug, than with a crowbar on the screw or bolt head, you can pull the plug out. Just like pulling a nail out of a board.

WHAT!!!!!

The nearest distance a crowbar should be between an engine and itself is a million miles!!!!!!

[Dpmulvan]

Use a larger drill bit and drill out everything except the collar then use a body saw or file and carefully cut into collar to weaken.

[Peteinjp]

I just did this on my 964 case with a long piece of 10mm round stock as a drift. I specifically avoided the middle of the plug and worked around the circumference and it popped out after going around a few times. It was held in with 574.





Pete

[Igeaux413]

For mine, I drilled a small hole off center then used stright flute extractors which I tapped in with a dead blow hammer until sufficiently snug. Tapped just firmly enough to slowly drive the extractor in as to not punch it in deeper. The external plugs I used a size that was about 1/2 inch extractor and the internal one was extracted with a 1/8 inch. Then I used a crescent wrench attached to the backend of the extractor and slowly turn while pulling the plugs. All three took 15 minutes total to remove.

[911pcars]

A common practice is to thread the camshaft spray bar passage for a NPT plug. I don't recall the size, but it's in the archives. Secure the seal with PST thread sealant.



Sherwood