[GTOLou]

Any of you pro's care to chronicle the way you tap that aluminum hose connector on a timing cover?

I've done it a handful of times - usually just put the tap in w/ anti-seize and remove and clean it often. I bought a motor from someone where the entire nipple was gone and had been tapped w/ the plug being flush after it was in.

I've got a recent purchase car and the nipple has cracked twice doing it my old way - it is getting pretty short (have ground it down - although not flush).

Do most folks usually pre-drill w/ correct bit size (37/64)? I don't mind losing the hose nipple completely, just don't want to trash the timing cover.