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Old 06-25-2005, 22:12   #1 (permalink)
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Do I have collapsed/dead lifters??

I've been trying to get my valves adjusted to get back my compression, and have been having some difficulty.

First go: Adjusted as per ford manual (each cycl @ TDC, then adjusted with feeler guage)
Result: vacuum improved from 10-12 to a solid 19in hg at idle. Ticking was really really loud.
Odd observation: when adjusting, I noticed that all rockers except the ones on number 4 did not appear to have any spring to them - ie the lifters would not compress. On number 4 the lifters would compress and were springy. This seemed odd but I continued on.

Then: Tightened up each valve 1/2 turn
Result: Lifters still quite loud. Vacuum went down to 17in

Then: Tightened each valve 1/4 turn
Result: still quite loud, vacuum to 15 in

Then: Gave up and tried comp cams method of adjustment. (have inlet open, tighten exhaust till zero lash + 1/2 turn and vice versa)
Result: Vacuum down to 10in, me pulling my hair out. Noticed again that #4 would compress but all others wouldnt.

So - do I have shot lifters on all but cyclinder 4??
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Old 06-26-2005, 01:52   #2 (permalink)
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Re: Do I have collapsed/dead lifters??

Well the answer is yes, I do. I've pulled off the intake and pulled all the lifters. All but one were siezed!! Anyway a new set are going in. Should be interesting to see how much better it will run.
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Old 06-26-2005, 04:04   #3 (permalink)
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Re: Do I have collapsed/dead lifters??

COV3R, Im not sure what set up you have, but if they are hydraulic lifters AND they are pumped up they do feel like they have seized.
What are you running (just for info). You see I have no idea how solids work.
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Old 06-26-2005, 05:59   #4 (permalink)
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Re: Do I have collapsed/dead lifters??

I've pulled them and they were definately sized. Couldn't get them to start moving. When pulled apart they had a fair bit of really really thick oil and much inside them from when I first got the car.

302 4v with unknown internals
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