I got no leaks.
I still have a vibration though..in neutral that starts at 2k, and is seemingly gone at 4k.
The engine tune has gone to hell,...it runs ok till it gets hot, then the surge starts..then it stops, then it’s back..
Did I mention that I got no leaks?
The vibration could be a number of things that don’t have anything to do with the transmission, So i have to deal with it from easy to not so easy. Firstly,..this could be harmonics....aka engine vibration....transmitted to the chassis as a byproduct of the solid mounted engine. The fix ( or the attempted fix) is to remove my solid mounts and mount them to a jig. Once I get a jig made, I can add a set of Poly engine mounts in between, and marry my existing motor mounts to the poly units. Then I bolt that sht back in and rev the engine.
If i still have a vibration, I’m down to two possibles...
When I had the engine apart the first time, and because I added a new harmonic balancer, and different flexplate to the mix, I had a machine shop balance the recip assy. When I put the engine in the car, that flexplate turned out to be bent, the converter hub wasn’t penetrating the crank. There was a vibration there too but not as noticeable in neutral, but definitely noticeable in drive. This time around, I get the correct flexplate ( albeit from a different engine) and have the converter modified to fit that flexplate. I research to see if these engines are internally or externally balanced, it appears that they are internal, but.....the flexplate i’m using is drilled full of holes. So maybe not.
That fix is as devastating as you can imagine,....requiring that I pull the engine, pull it apart, and have somebody check the balance.
The other path ( which I‘m not walking down anytime soon) is to blame driveline mismatch as a result of my adapted transmission, and the vibration is a byproduct of a wobble that’s going on ( ever so slight) related to a shift between the trans and the back of the engine when building that adapter. I do NOT believe this is what’s happening.
If it is, the fix has been beaten to death here in the previous pages..requiring that I convert over to a GM trans, since there are actual adapters properly machined to mate the two together.
Either way it’s bad...I’m only kidding myself thinking it’s harmonics...I’d have noticed it with OG monster engine, cause it was also solid mounted,.....but I can’t say that I did.