ARGH..... Finally got the bike out last night to test drive all the new goodies, YAEHHHH.......cam, S&S HL2T lifters, New Bassani pipes 13121j (brand new on flea bay $300) anyways in the "cold" garage started it and warmed it up, good oil pressure and all, oil temp was 150* so off I go onto the street. First run just a smooth acceleration, no biggy but on the second run, once I hit the 5200 rpm range, tons of clattering from the lifters and pressure drops to 8 at idle and only 20 at 2k. All the lifters seemed to collapse (most of the noise was in the blocks at the lifters, not as bad at the top, rockers) After idling for a minute they did pump up but when the clattering was going on I could see my oil pressure jumping from 2-6 in unison with the clattering at idle.. not to happy with that one. I know I had the pushrods adjusted properly, even did it a second time to make sure. Only thing I can figure is that the lifters were not machined to the proper diameter (a little on the loose side in the block) So it looks like i'm gonna have to take them out and mic them and the blocks to make sure. Didn't have this problem with the oem lifters....... ARGH.......................

 

Sorry to hear that, hope you find the problem.

 

sounds like u have some cavitation hope the oil ring is in place on the pickup on pump.that would cause u to loose oil pressure. it should be 30-40 at 2000 rpms. at idle you built pressure your lifters primed and then you hit the higher rpms the oring must have popped off the stem and is just sitting against the back of pickup sucking in air. JMHO. those S&S lifters are great quality I doubt that is the problem

 

That sure is bad luck but I too doubt it's a tolerance problem with the lifters, they seem to be about the most reliable out there

 

Damn it hotrod.... that sucks. My premiums seem to work well , even in the am going to work they are quiet upon startup. Not that it matters but do you have the standard or premiums.

 

Hi hotrod,

The S&S HL2T lifters should be the premium S&S lifters with the limited travel spacers installed. Based on the tenacious loyalty of Scott and Kirby and several others here, I would have to recommend focusing away from the lifters as an issue and to other causes, unless you didn't notice the significant difference in pushrod adjustment specs between the S&S "non-limited" lifters and the "limited" travel spacers that you should have. As I am sure you already know, the spacer limiters reduce the .200" travel of the "non-limited" lifter travel to .100" for the HL2T "limited travel" spacer lifters, significantly changing the pushrod adjustment height. Is it possible that somehow you missed this? Sure you did not, but just going back to the basics before you tear down your setup again.

 

Thanx to everyone for all your support. I will be getting back into it tomorrow night and will be checking all adjustments again, Talked to Wolf at S&S today and he suggested that I check it all again and if the adjustments are on to take it for a mild 20 to 30 mile ride checking oil pressures and not getting into the throttle too heavy. He believes that the time that i ran it in the garage was not enough to pump them up properly that it's very possible that they never really pumped up fully. I never had this happen before but i'll give it a try.

Hey Target, I think that if the o-ring is out of place wouldn't my oil pressure be a constant issue? I does pump back up and quiet down after idling for just about a minute.

It's a good thing spring isn't here yet, lol

I'll see what happens tomorrow. will keep you all updated, Thanx again.

Come to think of it, don't these lifters allow more oil flow than stock and would they require a high volume pump?

 

rod
the oil pressure should be between 30-38 psi @ 2000 rpms. I made the mistake of putting the oring inside the bore on case and than sliding in oil pump and cam plate. that's the way it was when i took it apart. oil pressure was good at idle but when rpms increased the oil pressure would drop and at highway speeds the engine started rattling in the top end. talked with bob woods about the noise and first thing he asked if i put the oring on the stem of the pump or put it in the case bore.I told him in the case bore, he said to take it apart and put it on pump and re install pump and cam plate. well my oil pressure jumped back up to spec of 40 @ 2000 rpms and that rattle noise disappeared. just stating what happen to me on the first build! Won't make that mistake again.high volume pump not needed those lifters are designed to pump up quick and maintain there rigidness for less bleed down

 

Todd,
Bob has an Evo engine.
Scott

 

In targets original statement I thought he was talking about the o-ring on the feed line from the tank to pump. No leaks there....