Are you getting oil to the top end?
Yes, but no idea how much. I collapsed a lifter the other day in traffic, so I know the pressure is low, just as the gauge indicates.Trent said:Are you getting oil to the top end?
J, I think you are right on the money. I'm sure the lifters and blocks are shot and gone. Sifton makes a nice complete solids kit. Has everything, one-piece rods, blocks, fitted solids, screws, gaskets, all there. Available J&P Cycle. I'm gonna do it, will let you all (ya'll, where I come from) know.Jurneyman said:I agree with bigassbike if you haven't done so already get an adapter fitting and run it off the lifter screen opening,where in the hell is all that crap coming from that keeps cloging up the lifter screen? Oil will follow the path of least resistence,so if you have a loose fit in your lifter to lifter block fit the oil will
just dump back into the cam case,instead of being pushed into the lifters and
up the small feed lines to the top end.Unless you have a later designed hyd.
lifter,by jim's or of equal oualtity or design,replacing the hyd's with a good quality solid adapter is a good choice,blocking off the lifter feed holes with
set screws designed and sized for that purpose is the best way to do it,put
grease on the tap,to trap as many of the shavings as you can,then blow air thru the top most hole in the lifter screen cavity till you feel the air flow, if
you don't some of the crap could have gotton past the screen and blocked the passage.It also won't hurt to use the lifterblock gaskets without a lifter feed hole.So as was was stated in the previous threads the oil will be flowing
the path to the top end.If not we will try again in the process of elimination.
Would you believe, I'm a relative expert on this topic, and I may have screwed mine up while I was there. When I started hunting for the right S&S pump for my pan, I started asking a bunch of questions, cuz the wrenches I hang with started talking about DRILLING MY CASES. Welllllll, Ol' Jim wasn't about to DRILL CASES without knowing why, which freaked everybody out (I found it funny, cuz they didn't know shit about why, just you wuz spoz to), but I started digging. I'll just say, if you want to talk old shit and S&S, call a guy named Al at the company. He knows his shit, and will talk to you as long as it takes to make you comfortable. I started this reply out by saying I may have screwed mine up: I verified mine was correct for the '59 model year, a true "side-oiler," but failed to verify the plug. It's usually up in there a ways on the later pans, so not readily obvious looking at the end of the pinion like the older ones. I simply did not pick up a punch and ram it up in there to verify. Now I get to wonder about that shit for a while...PONY said:I had a similar problem years ago and a local engine builder pointed out a threaded hole in the cam cover end of the pinion shaft. He said that, while it's the oil passage to the pinion bearing & crank pin, their is already more than enough oil splashing around the lower end to provide oil there. He put a screw in it and promised me it would be ok and give me more oil pressure to the top end. It's been over 10yrs & 100K and he has been spot on so far. I ran an oil pressure gage off a custom front rocker adapter for a long time and had a min. 5lbs oil pressure. I would check with some engine builders to see what they think. It worked for me but I'd hate to see someone else tear up an engine by trieing this...
I got ya, bud. I'm not tryin to find Evo pressure - 4 or 5 psi would be nice, though!bigassbike said:trying to find oil pressure on a vintage pan is a bit like a fool's errand.
it's pumping, as shown by the pressure buildup from the clogged screen.
dont mistake pressure for volume.
Yep, front exhaust. Oh, and I KNOW the screen dumped the hydro, just clean it out, and the lifters pump up immediately. Man, the drilling and plugging procedures vary widely depending on the case set and the pump body / pump cover combo. You gotta know I got it straight from S&S (twice) before I even purchased my pump. It all depends on your pinion shaft, end-oiler vs. side-oiler, and whether hydros or solids. I'm SURE we did the appropriate install with no drill and plug, and at the moment, I'm SURE my tappet to block bore fit sucks, several thousandths at least. I'm just gonna go back to my trusty solids, all NEW in new blocks, and let the ragged edge drag.bigassbike said:usually when s&s pumps are installed on an old motor running hydraulics, a passage is blocked with a setscrew, this passage determines whether the top or bottom end gets pressure first, ideally you wanna supply your top end, and only the bottom end after the top supply has been met. it sounds like this wasnt done.
but an old motor wont always generate any pressure, even though tons of oil is being pumped. either way...clogging the tappet screen is most likely what toasted the hydro.