Lifter making noise
09-18-2023, 05:21 PM
#31
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Location: Murrayville Georgia
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FWIW I will not use any comp cams lifters after the several sets that had issues. the isky with the bushings, jesel has bushing ones as well, supposedly will start to squeak when they start to have a problem but as said they will not fill the oil with roller bits and as said can be rebuilt. really the cost to step up to the better lifters is nothing compared to the total cost of an engine.
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PQ290Enticer (09-18-2023)
09-19-2023, 05:12 AM
#32
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I always thought the roller cams were the way to go if you could swing the cost. It never occurred to me that there could be so many problems associated with them. I thought they were the "best of the best sir"! Maybe I should have saved a ton of money and gone flat tappet? Nothing in my builds required a roller set up, I thought it was better and LOL an added layer of protection. Anyway, I am going to assume that there has been a lifter failure however, I will do my best to troubleshoot (including the oil change) just so I know. I do not want a catastrophic failure so I am leaning towards different lifters and as mentioned by Wildman I have all winter to get this figured out. I probably wouldn't go with solid lifters because of the PIA factor at least yearly to lash them in. Maybe your setups are different but a lot of stuff gets removed including the exhaust just to get the valve covers off with my setup. Plus I don't think I can even get a socket on the crank bolt without removing the back seat. I think my build is towards the bottom as far as stress on components goes. Low compression, small cam, and the AFR heads use this spring package: "PAC Racing Springs #1940 Street Hydraulic Roller Spring 1.550 O.D. 175 lbs. on seat .725” max lift Max RPM 6500-6700" which I'm guessing is not very much. I would think that much higher numbers across the board put more stress on all components. Maybe that's why you guys unfortunately suffered the catastrophic failures and I got off lucky with a warning? Thanks again for your comments and help.
As far as hyd flat tappets, the ONLY engines I build with them anymore are class rule engines that dictate you run them (which is rare for me), and I wont warranty them in any way, shape or form. I put it in writing that any failure is customers problem and make them sign it as cam core/lifter construction has went right in the trash..Ive used johnson lifters successfully in last 40 or 50 mild bbcs ive built with no isuues.
I had one customer who i used the Morels with from that 2014/2015 era, in 2019/2020 Bob M who had sold them to me asked if customer had any issues with them. I said NO except they were noisy cold. He highly recommended changing them before they failed. I mentioned this to the customer who said nah, Im selling boat soon anyways, not worried about it. a couple rides later one failed and destroyed his cam, lifter bore etc and trashed his whole engine. Was around 150 hours IF I remember correctly
Last edited by articfriends; 09-19-2023 at 05:16 AM.
09-19-2023, 07:36 AM
#33
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Articfreinds,
How much HP and cam specs on the motor that you change them every 100 hours?
Not unusual to put that many or more on per year here. It's really BS that in 2023 BBC lifters could not last hundreds of hours, not like this is new tech.
Have you ever tried the ISKY ones SARIS mentioned?
No wonder people go OB.
How much HP and cam specs on the motor that you change them every 100 hours?
Not unusual to put that many or more on per year here. It's really BS that in 2023 BBC lifters could not last hundreds of hours, not like this is new tech.
Have you ever tried the ISKY ones SARIS mentioned?
No wonder people go OB.
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Ryan00TJ (09-19-2023)
09-19-2023, 09:01 AM
#34
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For Gen VI engines, what about factory GM? Their performance lifter is a tall body, p/n 17120060, and supports the camshaft in the 572/620hp (.623 lift - 254/264 @ 050). I would imagine that it would be more than capable for most of what people here would use. I haven't heard too many people complaining about them either.
This would be useful for those that have factory roller blocks. I was going to go that route but ended up with a nice set of Crane lifters.
This would be useful for those that have factory roller blocks. I was going to go that route but ended up with a nice set of Crane lifters.
Last edited by TomZ; 09-19-2023 at 09:55 AM.
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87MirageIntruder (09-19-2023)
09-19-2023, 09:37 AM
#35
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Just a note with my success with jones cams and lifters. I had mike spec me out a couple SR inverse radius cams and his in-house or nearby lifters and couldn’t be happier. Easy on the valvetrain and cams are spot on for my 565 NA builds.
255/259-724/724. Pushed my heavy 12m straight bottom 87 gps (best to date) Gotta give Valako a big thumbs up also on the heads!!! Great combo for me anyway.
255/259-724/724. Pushed my heavy 12m straight bottom 87 gps (best to date) Gotta give Valako a big thumbs up also on the heads!!! Great combo for me anyway.
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articfriends (09-24-2023), TomZ (09-19-2023)
09-19-2023, 09:42 AM
#36
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For Gen VI engines, what about factory GM? Their performance lifter is a tall body, p/n 17120060, and supports the camshaft in the 572/620hp (.623 lift - 254/264 @ 050). I would imagine that it would be more than capable for most of what people here would use. I haven't hear too many people complaining about them either.
This would be useful for those that have factory roller blocks. I was going to go that route but ended up with a nice set of Crane lifters.
This would be useful for those that have factory roller blocks. I was going to go that route but ended up with a nice set of Crane lifters.
09-19-2023, 10:06 AM
#38
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Not yet and if the only way to check it is to reassemble the engine without the valve cover to get it running and look around then to be honest, I'm not looking forward to that. Especially if it turns out all the lifters were fine and I actually just had an exhaust leak.
09-19-2023, 10:53 AM
#39
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I've run solid Isky Red Zones on HR cams since 2006 with no issues. Isky lifters are rebuildable and I sent them back for rebuild 2yrs ago.
I have Comp HR lifters in my Merc 420's with 500 EFI cams. I bought them from the Swap Shop used, later to read later that the member had issues with them ticking in his engines. The lifters ticked on initial install, but I quieted them down by increasing lash a little not tightening the rocker nut. I run Comp 933 springs on both applications.
I have Comp HR lifters in my Merc 420's with 500 EFI cams. I bought them from the Swap Shop used, later to read later that the member had issues with them ticking in his engines. The lifters ticked on initial install, but I quieted them down by increasing lash a little not tightening the rocker nut. I run Comp 933 springs on both applications.
09-19-2023, 11:02 AM
#40
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PQ, to me the sound difference between a lifter tick and exhaust leak is distinct.........Id pull the covers relash all the valves reassemble and fire it up
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getrdunn (09-19-2023)
