OFH removal on 1990

[buder]

Today I finally got my car started after rebuilding the motor, it is now a 2.3L with BS eliminator and my oil pressure was high. I figured I would have to port the OFH to get the pressure down. I am just wondering on a 1990 car do I have to drain the coolant before removing the OFH? Are there any coolant passages that run to the OFH that will leak all the coolant out when I remove the OFH?

 

[buder]

I got my OFH removed today and there was no coolant at all going to the area - might be useful information for the future that on a 1990 there is no need to drain the coolant if you are going to be porting the oil relief and having to remove the OFH. Also porting the relief valve got great results for me by making the hole into a D shape, as I saw in a couple of pictures in the forums, got my pressure down from 100+ psi to around 25 at idle and max of around 75psi.

This was how I ported my relief:
http://www.dsmtuners.com/forums/att...-no-balance-shafts-portedoilfilterbracket.jpg

 

[Side_Show]

i ported mine the same way, but i don't have an aftermarket oil pressure guage to verify exact psi. And 90 oil coolers are Air cooled unlike the 91-94 which are Water cooled.