I have taken this darn thing off, cleaned and inspected sealing surfaces over and over again. The gasket is brand new and crush washers. I think it may be distorted, or over tightened at one time. I seem to remember someone making a billet taco plate....????? Could I use loctite 565 in the o-ring???

This is starting to annoy me..... Getting oil all over a brand new engine.

Mike

if it is a fairly new plate, it could be leaking at the poorly welded factory fitting

It is leaking at the perimeter.... around the o-ring

You can try to goop the seal with silicone

or

remove it and take it to a machine shop .... lay it on a flat plate, guage plate or whatever they call it and see if it is in fact warped. Maybe they can make it flat again.

When I put a taco plate on my 71 for a temp gauge sender, the sucker leaked like crazy. The edge of the plate was hitting the case side so I had to file that down. This helped but didn't stop the leaking. Ended up with gasket sealer on the O-ring and around the bolts.

Spoke