you kept the cracked plate? how? oil goes through the cooler to the bottom of the rear iron which travels up to the oil filter and out through the dowel pin that cracks and on to the front of the motor then down to the eccentric shaft. stock the oil feed for the turbo is off the top of the front iron, nothing new there but your post still confuses me.

 

I loved my street port best I've seen
so I did not want to replace and try to match that port..


So a local machine shop/rotary guy did the mod
some drilling and tapping involved

where the old feed line for the turbo (top of front plate)a long bolt is inserted there
after drilling....then some JB weld to seal the top of the bolt.

the middle of the front plate has a indentation whre you drill to the oil vien in the casting and then tap and place a -AN fitting from there a braided line feeds oil to a aftermarket oil pedestal, where you would need to drill and tap for a -8AN fitting
then the hole for the oil pressure gauge is where you make a braided line -3AN
to feed oil to the turbo...

 

Wtf?!

 

Hehe hmm yea seems complicated but its not
But in your case Rat, I would just replace the rear iron

 

My leak is between the intermediate and rear housing. Same deal?