Just got my engine together. Stock bottom end with just over 30,000 miles so I didn't change the bearings. They looked fine to me. Oil pressure stays good even at idle unless I stop quickly. After an abrupt stop, it drop to 0. What could this be? I removed the air and egr so I put the oil sending unit straight up and down without using the elbow. This shouldn't affect the reading should it? Any help would be appreciated. Please don't say just don't come to an abrupt stop. Thanks.

Tim

 

Sounds like your pick-up fell off the oil pump. When you put it back on tack a little bead where they meet. That'll keep it on.

 

It's a brand new oil pump and we did tack it on. No I didn't get a high volume pump because I didn't want to empty the pan. I didn't actually do the tacking myself, but I asked the guy tonight if there was any way it could have come loose and he said no way.

 

I'm having the same problem! I do have a HV Melling pump but it does have a bolt on pickup. Hopefully someone has a answer.

Jason

 

I had the same issue with my 355 build. Just cause it taced on doesnt mean it cant come off. Trust me mine came off after it was taced on. Iv had mine come off 2 times. The second time, engine builder built a sweet bracket and now its not possible for it to come off. Im betting its the pick up off.

 

Ditto, pickup if off or broken. One I put together broke off even though it was welded on.

To check....
Drain oil from pan and tap on the pan with a hammer or something hard. You will hear it bounce around in there.

 

Thanks for the help guys. The pickup was off and we made a bracket to keep it from happening again.