solid roller takes another casualty... Lifters

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dvs265ap6

dvs265ap6

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ok guys anyone run crane ultra pro solid roller lifters in there la small blocks, looking for any mods that may need to be done.looks like another set of howards, herbert lifters have stuffed up the seat and a mate has comp ones done the same thing.
 
ow that looks expensive....better get some mrl lifters.....
 
Since you're having trouble, why not switch to a solid flat tappet? With the right grind, you can come close to a roller's HP with the result of a lot longer longevity. Would be a lot cheaper too. Just a thought.
 
RustyRatRod said:
Since you're having trouble, why not switch to a solid flat tappet? With the right grind, you can come close to a roller's HP with the result of a lot longer longevity. Would be a lot cheaper too. Just a thought.
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x2 with 1.6 it could be close....
 
that looks like something that the valve gear or heads caused. check to see if the lash was too loose and also if the pushrods are binding on the head holes.
 
not that expensive just annoying, these are howards rollers $350 a set. i had a solid flat in before and wipped off the cam lobes, twice, thats why i went roller in the first place. the first set of these lifters were a casualty of the head rubbing on the push rods,but it's done it again i think ,the same noise is in the engine at the moment. havn't pulled the manifold yet but sounds the same. it's the indy offset angles i think combo with the spring pressure. I have found another guy with comp rollers and he stepped up the spring pressure after 1 year of running fine now his lifters look like mine. same cam lift and engine. i want the offset mrl's but manufacturing is stuffing them around. oh and the lash was set at 18 instead of the 22 the howards cam wanted as they were too noisy for me.......i don't want to harp about indy heads to much but unless you have them on your car you don't have any idea the crap you have to deal with. everything about them sux, just a word of warning, if you buy them and you want to run a solid roller throw out the rockers ,springs and pushrods, grind out the pushrod holes and you rocker covers to clearance the pushrods and buy the best lifters you can get your hands on.
 
Well, no offense, but it certainly looks like going roller didn't fix the problem. I don't know man. That's too much of an expensive lesson for me. lol Good luck with it. Keep us posted.
 
is the round end of the pushrod the correct size for the lifter? when you changed from a solid to a roller did you install the correct springs? what pressure are the spring at?
 
bOb shingler said:
is the round end of the pushrod the correct size for the lifter? when you changed from a solid to a roller did you install the correct springs? what pressure are the spring at?
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yeah mate i've checked everything like that twice, three times, the springs are 240 seat 580 over the lobe and the pushrods are 5/16 balls on 3/8 rods, trends. and coil bind isn't happening and the piston to valve still has about 1/4 inch at 20 before tdc, seem to be the closest spot i can find.
 
RustyRatRod said:
Well, no offense, but it certainly looks like going roller didn't fix the problem. I don't know man. That's too much of an expensive lesson for me. lol Good luck with it. Keep us posted.
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ha ha mate i don't get offended that easy, i've spent so much time and effort on this thing, it seems like a joke to a lot of ppl. but it seems that this is what happens when you go indy heads, if i did it again i'd go edelbrock all the way, committed now to getting it to stay reliable.:banghead:
 
Like your Indy's I have W5's with the offset rockers and unless you are very careful and pay really close attention the pushrods will slip out of the cup easily when putting it together and when setting the lash.

It's possible that with just the right harmonics in the valvetrain the pushrod could flex just enough to cause it to slip out.
 
What is the lifter bore clearance?
From the looks of the other photos of the outer diameter of the bodies the lifters are rocking in the bores from too much clearance. It should only be about .0015".
 
Guitar Jones said:
Like your Indy's I have W5's with the offset rockers and unless you are very careful and pay really close attention the pushrods will slip out of the cup easily when putting it together and when setting the lash.

It's possible that with just the right harmonics in the valvetrain the pushrod could flex just enough to cause it to slip out.
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amen to that mate ,they are a pain in the *** , i run them tight lash too
 
dvs265ap6 said:
this is what i mean about the seat.
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It's called valve float. When the spring loses control of the valve, it opens up lash. Notice which side of the seat the "stuffed up" area is. It left the pushrod come out of the seat and when the lash closed up again, that's where the pushrod was slamming back into the seat. You need your valvetrain geometry fixed because you have plenty of spring pressure and it's not the lifters fault.


Not to hijack the thread, but RustyRatRod, I'm sorry to hear you had to sell the slant six stuff. I was hoping to hear how the kit I sold you worked out.
 
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