Lifter making noise
#41
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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.
As far as solid bushing lifters, Ive used the Isky red Zone solids in race engines (7000+ rpms/cams at 800/900 lift ect). A bushed lifter is definitely STILL a wear item. As far as a bushed lifter with Hydraulic plunger, I have NOT used them in anythiing.
As far as solid rollers in general, I NEVER use them in ANYTHING unless application warrants it, Since there ARE reliable hydraulic rollers, I would never consider a solid roller lifter with bearings in the wheel/axle any more reliable they a similar hyd roller in these mild sub 6000 rpm marine engines and most mild 1000 hp or less marine blower engine in a recreational boat
Last edited by articfriends; 09-20-2023 at 06:51 AM.
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getrdunn (09-27-2023), Wildman_grafix (09-20-2023)
#42
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So I have an update on the lifter noise situation. I don't see any visible damage so my thoughts are to go through all the valves and verify they are correct. I do need a little help first. I have an email into comp about the pre-load. I was thinking it was 1/2 to 3/4 of a turn past zero lash but saw that rollers are only 1/4 turn?? Any insight is appreciated.
#43
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Wow! After you adjust valve preload correctly. I would test fire and watch that rocker with valve cover off. Recheck preload. That's alot of play. Something's ****y as Bubbles would say.......
#45
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So in your video you found THAT rocker that loose? IF so, hold a straight edge on poly lock acrossed other 4 or did you find the lock nut loose as in falling off? IF it was NOT loose and rockers that loose you got a lifter wheel failing or plunger collapse, pushrod tip ate off, etc
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#46
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So in your video you found THAT rocker that loose? IF so, hold a straight edge on poly lock acrossed other 4 or did you find the lock nut loose as in falling off? IF it was NOT loose and rockers that loose you got a lifter wheel failing or plunger collapse, pushrod tip ate off, etc
#47
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articfriends (09-25-2023)
#48
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#49
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After taking the slop out confirm with a dial indicator or small ruler to confirm opening height. Really need a solid lifter to be precise but you’ll know with your hydraulics.
(Cam lobe) IMO
(Cam lobe) IMO
Last edited by getrdunn; 09-25-2023 at 08:07 AM.
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articfriends (09-25-2023)
#50
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I was wondering if that would work. If it doesn't then failed lifter correct? I will pull the push rod just to make sure its not ruined.
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articfriends (09-25-2023)