I have a 12a front cover that has the omp gear & shaft removed. Want to know if I can tap the hole where the oil metering pump shaft used to be for a turbo return line. I know the gslse front cover has a good spot to drill and tap but I don't have one of those I have a 12a cover. This is for a 13brew block with gslse pan and 12a front cover.

 

To clearify it's the turbo oil return line I'm talking about. No one uses the 12a front cover for turbo motor?

 

A little searching found this. This question has been asked and answered before.

Turbo oil return into OMP?

https://www.rx7club.com/1st-generati...n-line-741839/

https://www.google.com/search?sxsrf=...w=1600&bih=789