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PostPosted: Mon Apr 30, 2018 4:40 pm 
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Guys,
A bud of mine has a 72 mach 1 with a cleveland in it. It was rebuilt by a local builder in our area. After proper break in by the builder on a dyno, it now has around 500 miles of road time on the engine. It recently developed a lifter tap in cylinder #5. I attempted to adjust the lifter and it seemed that the cup was bottomed out without any movement. I removed the lifter and disassembled it. It had oil in the bottom and I dumped it out and reassembled it. Now I reassembled and it seems to be working correctly or seems to by pushing on the cup with a push rod. Should or can I just replace the entire lifter or just the guts ? Any recommendations, suggestions, etc ? Any help would be appreciated.....
Thanks, Jay


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PostPosted: Mon Apr 30, 2018 4:45 pm 
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IMHO, replace. I think lifters are not what they used to be, depending on the brand used in the rebuild. I only buy known brand names now - Isky, Howards, Comp or get a recommendation from Brent or Tim.

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Chris - Merkel, TX
http://raceabilene.com/kelly/hotrod
"Owner built, owner abused."


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PostPosted: Mon Apr 30, 2018 4:57 pm 
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I'd be reluctant to replace the lifter now that the cam has been broken in using that lifter. Swapping the guts can be a problem because those parts are select fitted to VERY tight tolerance when the lifters are produced. This is what controls the bleed rate of the lifter. I think I'd put the lifter into the engine, crank up oil pressure and then adjust it to see if its working. Maybe it just picked up a little tiny piece of gasket, silicone etc.


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PostPosted: Mon Apr 30, 2018 5:46 pm 
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I'd back Dave up on this.

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PostPosted: Mon Apr 30, 2018 9:24 pm 
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Dave has a good point that I overlooked - agree 100%

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Chris - Merkel, TX
http://raceabilene.com/kelly/hotrod
"Owner built, owner abused."


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PostPosted: Wed May 02, 2018 7:50 pm 
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Guys,
Thanks for the advise. I will clean the lifter up as suggested,visually check bore,cam, oiling ,reinstall, adjust valves and see where it is.
Thanks, Jay


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PostPosted: Wed May 02, 2018 7:50 pm 
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Joined: Sat Dec 22, 2012 7:38 am
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Guys,
Thanks for the advise. I will clean the lifter up as suggested,visually check bore,cam, oiling ,reinstall, adjust valves and see where it is.
Thanks, Jay


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