I did pull the shaft and inspect it, it's in perfect condition. I stuck the priming shaft down there and spun it....nothing. Priming before break in I had to hold the drill with 2 hands and it still tried to twist my wrists.
I like this test idea. Thanks!
Hope so. I'll find out today.
why take the pump off ? just take the spring out and put a pencil like magnet in there and free and take the relieve valve out, clean and check for burrs. now you either found the problem or eliminate one problem it could be.
That what I'm gonna do!
a few ounces of oil will come out and maybe any debris so put a pan underneath. then after together i would prime the pump again and you will know for sure if there is resistance with the drill.
This, and deburr the pump cover and rotors. They are really rough in that area. The relief valve should fall in and out on its own, some need a little polish work.
Per the original post since losing pressure the engine has run less than thirty seconds & hasn't been driven/put under a load.... You'd be shocked how many engines I've worked on with a dead hole that the owner had no idea... I'm sure the O/P would notice but not necessarily in the first thirty seconds with the engine not under load & with his attention focused on his loss of oil pressure..
That sucks right there!
Agreed, and that does suck about your buddy. My motor never missed a beat, and no noise either. I stuck the priming rod down there, and spun it with no resistance. Also couldn't see any oil move in the oil line to the gauge. I think the problems down in the bottom, and I'm gonna be back in there in about an hour. I'll post results.
He got lucky, no damage & didn't cost him anything besides needing shorter pushrods... Oh, and the tip for the tow truck driver.. AAA got the tow bill but since it was close to 100 miles he at least bought the guy lunch
