Recent content by bones427

I pulled the shaft and checked it in my vise it is good. I know bolts are in there me and a buddy put this together. he has done a few mopars and my 1st one. this is my street strip car, not the race one. I'm just new to mopars.

no grade 8 bolts. arp studed mains. with one cut down under pump.

yea I know I can tear it down just was trying to find problem without going that far. especially since it had 60-70 lbs from start up and a bunch of test drives. to a sudden loss of pressure. quess I will wait till winter! gonna go back to racing my fast chevy till then. i'm fed up with this one!

well that didn't fix it. slow to climb to 40lbs. rev it and pressure drops to 0. will idle at 30 hot . only thing I can figure is lifters coming out of hole as you rev. they are morel soild rollers, any one use these lifters with out tubing the block?

just got my mp pump. it is a melling. and got the gasket. gonna put it back together this weekend and see how it goes. installing oothb. and no porting to it. last one I did the mods.

ggod info. you need to do a holley strip dom. also.

so which brand pump to buy? mopar perf. melling or seald power? or are they all mellings in diff. boxes?

all plugs are in the motor!

gonna pull intake next. but car runs fine don't think lifter broke but will check.

it lost pressure with the break in oil in it. was 10-30 vr-1 have also tried 20-50 same issue. checked dip stick with the 8qts and filter. its good.

napa/ wix. how many of you guys run a gasket between pump and main cap? I don't think that's it but may try it.

mech. and I tried another same thing.

why throw hv pump away? deep moroso pan with the pickup to match, yes checked it and pump is square to cap. also sealed it with some permatex. plugs are there, bearings look like new. gonna try another pump.

I just redone my 340 . and had great oil pressure 80 +lbs. new hv melling pump and deep pan. drove it a few times its ok . went for a cruise and its all over the place from 0 to 30 get it home change oil from break in stuff . now only have 40 to 45 lbs and when you raise rpms pressure goes...

i am rebuilding my 340 that has rpm heads and crane rockers they are a older set, i am going from a flat tappet to roller. do i need to upgrade the shafts to the better oilers, and i have the stock hold downs do i need to upgrade them to the better ones for alumn. as hughes recommends?