I pulled the intake off just to see if I had hydraulic or solid lifters so I can adhust the lash. They looked hydraulic but now I read on cranes website the top of the lifter looks the same. I pulled one out and it has oil holes on the side of it for the gallery and a hole in the pushrod but I never saw a solid lifter so I can't compare it. I have the intake sealed back up and don't want to remove it again. Is there any way of telling up near the rockers somewhere. I was getting ready to tune it running but don't want to mess anything up if they are solid.

If there is no oil in the lifter you should be able to grab the push rod, push down till you feel resistance and then push it down a bit further after that. Solids won't have that second 'give'.

Don't tune it running, it just makes a mess. Use the ICEO method, adjusting the intake valve when the exhaust valve is just opening, and the exhaust valve when the intake is just closing.

<font face="Arial,Verdana" size="2">Originally posted by retorq:
If there is no oil in the lifter you should be able to grab the push rod, push down till you feel resistance and then push it down a bit further after that. Solids won't have that second 'give'. </font>

How do you get the oil out the lifter?

Put it in a soft jaw vice with something soft inserted into the pushrod end and squeeze GENTLY. If it's hydraulic you'll know quickly, if it's solid, she will be SOLID!

<font face="Arial,Verdana" size="2">Originally posted by Marv Davis:
Put it in a soft jaw vice with something soft inserted into the pushrod end and squeeze GENTLY. If it's hydraulic you'll know quickly, if it's solid, she will be SOLID!</font>

That's the problem, I don't want to pull the intake off again after I just sealed it up with no leaks. That's why I pulled it off so I could see which lifters I had but I didn't realize till after that the lifters look the same. I never saw solids before and thought they wouldn't have the recess with clip like the hyd. do. Here's why I think it's hydraulic, what do you think? I went to try each way of adjusting valve lash to figure it out and when I try the EO IC method on #1 I couldn't even fit a .004" feeler in the intake. That must mean they are hydraulic and they are pumped up right? Otherwise I should be able to get a .024" feeler in any soild that is closed.

If they were solid and someone accidently set them up as hydraulic, wouldn't the valves not close and the engine backfire and run rough? I've certainly never tried so I can't say what a solid cam overtightened runs like ;-) If every valve lash set under the valve covers is tight, like its hydraulic and it runs okay, I would say its hydraulic. If they are all "loose" as you rotate through and check them then I'd venture a guess they are solids but with a 4 thou feeler not able to get thru I can't see them a solid lifters.

That's what I thought, I am gonna set them up as hydraulic and play the percentages. Thanks

<font face="Arial,Verdana" size="2">Originally posted by Marv Davis:
Put it in a soft jaw vice with something soft inserted into the pushrod end and squeeze GENTLY. If it's hydraulic you'll know quickly, if it's solid, she will be SOLID!</font>

You could remove the rocker arm and try pushing the rod down on the lifter while it's installed. Pick one that have some lash clearance and measure it before you remove the rocker nut. Then reinstall to the measured value.



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Mark D
1970 Z28
http://members.rogers.com/mlvd/
WTB: 70 SS396 Chevelle 4-spd, flapper hood car, no rag tops.