spongy caddy lifters??
09-08-2007, 08:10 PM
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spongy caddy lifters?? I'm putting my motor together and I'm using the caddy lifters. With my rockers at 0 lash I can lift the rocker up a good 1/4" or 3/8". If I push down on them with the pushrod they compress alot. Is this normal? They call for .060 preload correct?
09-08-2007, 08:53 PM
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I noticed the same thing and I had soaked them in oil for like 3 months. I'm using the Harland Sharp rebuilds, and with 7.35 PR's I got about 1 3/8 turns, which I think is a little less than .060. When I initially cranked up the engine and the lifters got pumped up they were quieter than my old 850's with a little smaller cam. Very happy with them.
09-09-2007, 08:47 AM
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How many turns on the stock rocker bolts equal how much preload. After measuring I cam up with a 7.41 pushrod length. I put a stock 7.4 in and only got a half turn of preload.
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09-09-2007, 09:35 PM
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Has anyone done high RPM testing with these yet? I would like to know some real world number.
Oh yeah, the spongy feel has no performance difference. It is not going to hurt anything. Just means the lifters are able to bleed down when there is no pressure. No big deal, as long as you don't lose oil pressure when running, but by that time, the game is over anyway!!!
Oh yeah, the spongy feel has no performance difference. It is not going to hurt anything. Just means the lifters are able to bleed down when there is no pressure. No big deal, as long as you don't lose oil pressure when running, but by that time, the game is over anyway!!!
09-11-2007, 10:08 AM
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Originally Posted by MSURacing
Has anyone done high RPM testing with these yet? I would like to know some real world number.
Oh yeah, the spongy feel has no performance difference. It is not going to hurt anything. Just means the lifters are able to bleed down when there is no pressure. No big deal, as long as you don't lose oil pressure when running, but by that time, the game is over anyway!!!
Oh yeah, the spongy feel has no performance difference. It is not going to hurt anything. Just means the lifters are able to bleed down when there is no pressure. No big deal, as long as you don't lose oil pressure when running, but by that time, the game is over anyway!!!
09-11-2007, 10:23 AM
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Can you guys explain what you mean by how much you turn the rocker bolt to preload? I'm assuming this is the "correct" way to do it, instead of just torquing the rocker bolts to 22 ft./lbs?? How exactly do you do it though? Sorry if its a dumb question...
09-11-2007, 10:28 AM
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Originally Posted by 97MysticZ
Can you guys explain what you mean by how much you turn the rocker bolt to preload? I'm assuming this is the "correct" way to do it, instead of just torquing the rocker bolts to 22 ft./lbs?? How exactly do you do it though? Sorry if its a dumb question...
Pushrod length determines amount of preload
