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Old 04-14-2005, 12:09 PM
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lifter quality question

I need replacement lifters as i THINK it will either solve my problem, or eliminate one of the two possibilities. I've heard before that there are only a few companies that actually make hydraulic lifters, so wondering if i should spend more to get some bigger $$ ones, or just get white box replacements from a parts store.

Engine is a 351W, power from idle to 5000 or so, pump up shouldn't be a problem thusly.

Any brands to stay away from? Would it be worth it for a low rpm application to bother with a brand name lifter?
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Old 04-14-2005, 12:27 PM
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I might have missed this, but what is the problem?
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Old 04-14-2005, 12:29 PM
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what lifters are you using now? my stock lifters revs fine to 5000, and i pull a heavy 3.08 rear.
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Old 04-14-2005, 12:50 PM
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Quote:
Originally Posted by Dubz
I need replacement lifters as i THINK it will either solve my problem, or eliminate one of the two possibilities. I've heard before that there are only a few companies that actually make hydraulic lifters, so wondering if i should spend more to get some bigger $$ ones, or just get white box replacements from a parts store.

Engine is a 351W, power from idle to 5000 or so, pump up shouldn't be a problem thusly.

Any brands to stay away from? Would it be worth it for a low rpm application to bother with a brand name lifter?
There have not been any issues with Ford lifters.
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Old 04-14-2005, 01:09 PM
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It's diagnosing a valvetrain noise. All vavle/rocker arm/lifters make noise, one is especailly noisy and i know is a collapsed lifter. Adjustment of the rocker arms with more pre-load or less pre-load doesn't seem to make a difference in sound. Adjustment nuts are stover lock nuts. Rocker arms and pushrods replaced allready. Running stock cam, stock springs, 1.7:1 magnum rockers, so shouldn't be enough to pull out the press in studs, but it's either that or the lifters, gonna try the lifters first as it's a lower $$ fix. Tried running a can of wynn's hydraulic lifter treatment, but it didn't seem to make a change in sound. Motor sat for 7 years un-ran till i bought the car, then has been started periodically since. 62,000 miles on the motor. Oil pressure is at 40-50lbs on my cheapo electrical gague at starup, drops as oil gets warmer to 30ish.
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Old 04-14-2005, 02:52 PM
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could it be the 1.7 rockers?
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Old 04-14-2005, 05:11 PM
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noise was there before the rocker swap, however the rockers could be contributing to the noise as well as i know roller tips are noisy. Since i know that one of the lifters is collapsed i figured i would replace them all anyway, and eliminate that possibility. Thus the question at hand, which to buy...
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Old 04-14-2005, 07:46 PM
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are you sure that a lobe on the cam isent wiped out?

sr66
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Old 04-14-2005, 10:22 PM
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does the motor ever backfire through the exhuast? I had a problem where I would get an odd clacking sound from the heads, but couldn't figure it out. It would rarely backfire through the exhuast and then it got worse. I went ahead and looked at the lifters and noticed some had been rounded out and the same cam lobes were rounded out to. My suggestion would be to pull the intake if you had the time and check out the lifters.
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Old 04-15-2005, 01:31 AM
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Quote:
Originally Posted by Rob Keller
are you sure that a lobe on the cam isent wiped out?

sr66
no, but i don't see how a single wiped lobe would cause all the valvetrain to make noise. Nor would it make the one lifter spongy. Cam is the stock cam of 60+ thousand miles, dunno why it would decide to up and quit after that long of a break in period .

Quote:
Originally Posted by 69novarodr
My suggestion would be to pull the intake if you had the time and check out the lifters.
natrually if i am replacing the lifters i would remove the old lifters and examine them for un-ordinary wear. I had a backfire problem, but that was timing related however (EGR motor with egr disconnected, and distributor still tuned to work as with egr, vaccum advance was way out in left feild, plugged and all is well)
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Old 04-15-2005, 08:00 PM
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anyone have an opinion on lifters?
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Old 04-15-2005, 08:30 PM
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Federal Mogul/Speed Pro/Sealed Power.....whatever they're marketed under. I use them on everything I build with a hydraulic cam. I had problems with Comp Cams lifters, the faces weren't crowned properly, no chamfer on the edges, sides weren't ground evenly and they were just plain dirty. After disassembling a few sets just to clean them I went to the parts house and got some stock replacements. Haven't had a problem yet.

Larry
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Old 04-16-2005, 12:33 PM
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as the last guy said all of those are good and likely the same but chevy has hyd. lifter # 5232720 that has a hard face on it and they are about 85.00-90.00 right now.when i get cams i have learned thats one of the places its ok to spend a little more.check them out.
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Old 04-16-2005, 02:54 PM
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thanks guys
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