Oil Galley Plugs, Just replace the five big ones? Options

[saigon71]

In preparation for an engine rebuild, I wanted to get myself up to speed on drilling/tapping the oil galley plugs.

Search revealed conflicting information about whether all should be removed and tapped or just the five big ones.

What's the current school of thought on this?

Also, what size plugs and drill/tap will I need.

Thanks!

http://www.914world.com/bbs2/index.php?sho...=103988&hl=

[Dave_Darling]

IIRC, there is one plug that will block an important passage if you run it in too deep. (Might apply only to some cases?) You obviously don't want to do that.

You can replace the small plugs as well if you want. It certainly makes cleaning the passages out thoroughly easier if you do.

--DD

[Mark Henry]

IIRC, there is one plug that will block an important passage if you run it in too deep. (Might apply only to some cases?) You obviously don't want to do that.

You can replace the small plugs as well if you want. It certainly makes cleaning the passages out thoroughly easier if you do.

--DD

IIRC that is the 3/4 side lifter oil galley. You can leave that one quite proud if you like, but the other two will interfere with the flywheel if they are too proud.
Make damn sure of your plug depths before you begin your build.