I have the ATT. Hauling on flat level ground I think I saw boost at 4 to 6 psi. Hauling up a grade I saw 12 to 14 psi and 1200 on the pyrometer. Only the first grade south of Vegas did I have to pull over because ECT hit 210.
These were all tested on the 6.5 Optimizer? If so, I would stick with the new AC Delco. I also commend your efforts to swap these in and out so quickly.
On the bad Chinesium, the pump vane does not look like it’s attached solidly to the shaft. Could it be spinning on the shaft while under load?
Not sure what you’re getting at. It looks like flashing is present on the hole to the right and to the left the backing plate is misaligned. If that’s the case, I would grind the flashing off on the right and grind the plate on the left. Before I’d do any of that, I’d pull all the bolts to see...
That side cap readily came off. The whole this is a POS. I threw it in my GM Turbo crash kit bin which has all my OEM parts for restoring in case I had to pass Smog test somewhere.
Same here. Mine leaked out of the cap.
The effect here was like pinching your nose and blowing to pop your ears: shit came out everywhere. I probably did 30 miles like this and it was spotting everywhere. I still have spots all over the dirt from when I was using the truck to pull out...
CKO can with ProVent filter. It was not allowing the blowby to exit to the turbo boot. Had nothing to do with the filter element and everything to do the with the pos CKO can. Never did strain enough oil for it to push past the check valve. Only small dribble made it to the check valve. Instead...
Pulled the ProVent catch can off the ‘94. Pressure washed all the leak areas, then drove it around. It appears the leaks have stopped. Sigh, relief. That was a wasted project.
I tested the check valve again. It was in the right direction and working properly.