Case Oil Galley Plug removal/replacement

[bleitch]

I am rebuilding my engine that is built up on a turbo 3.0 case. The previous owner did not take care of this engine at all and as a result I want to clean every nook and cranny. I was hoping to remove the oil galley plugs on the case and give everything a thorough cleaning. I have not been able to find anything in this forum which means I must be looking in the wrong spot. Can someone point me in the right direction about the best way to do this?
Thanks,
Bob

[Walt Fricke]

Drill small holes in the plugs and use a slide hammer with a screw end to pop them out.

I've always (that's twice) tapped the resultant holes and screwed in plugs. Be careful not to tap too deep or screw in too far - you need to look to see what connects to what so you don't inadvertently block something off.

I used aluminum plugs (weight, don't you know) the second time I did this, but found that I could not remove them, which was much of the purpose of using screw in plugs. So it will be back to brass plugs, which can take more unscrewing torque. Standard IPT taper threads and plugs.

And not all of the plugs need be pulled. Maybe three, as I recall.

Otherwise, you purchase new stock plugs and press them back in after cleaning.

Walt Fricke

[silver_911]

For cleaning the oil channels, I used some hardware from my dad for cleaning rifles. There are plenty of different sizes of brushes available to fit nearly all bore diameters. Provided a good help.
Don't forget after installing the new aluminium plugs to seal them with JBWeld or something similar. Look in Wayne's book for details.
Good luck,
jens

[bleitch]

Thank you for your help. Who sells replacement plugs??

[Walt Fricke]

I don't find these plugs separately listed in the factory parts catalog. Not in the diagram, anyway. I believe shops just make them as needed. It is an interference fit, so some skill in measuring and working a lathe would be in order.

I think the factory 993 shop manual (google and download) gives some specs on these, and part numbers, though whether they are the same size as your early 930 case I don't know.

Another benefit of having a set of pipe thread taps. You can buy those plugs in any good hardware store.

Walt Fricke