Dumb pushrod question
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Stellar HDF Member
Joined: Mar 2015
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From: Winnipeg
Dumb pushrod question
Installed Andrews 48 cams and feuling hp lifters 2 years ago. Adjusted se pushrods to .130 and have developed a bit of increasing valve train noise when shes hot. Wondering if perhaps a pr is loose or maybe bad lifter. How would I know if a pr was loose? Once on the base circle would there be up and down play in the rod? Just wondering if thered be an obvious tell tale sign. Regardless Im planning to check them and redo the adjustment anyway. Just wondering
also should I stick with the .130 or ? Feuling recommended .100
also should I stick with the .130 or ? Feuling recommended .100
Stellar HDF Member
Joined: Jan 2017
Posts: 2,650
Likes: 2,051
From: Massachusetts
Installed Andrews 48 cams and feuling hp lifters 2 years ago. Adjusted se pushrods to .130 and have developed a bit of increasing valve train noise when shes hot. Wondering if perhaps a pr is loose or maybe bad lifter. How would I know if a pr was loose? Once on the base circle would there be up and down play in the rod? Just wondering if thered be an obvious tell tale sign. Regardless Im planning to check them and redo the adjustment anyway. Just wondering
also should I stick with the .130 or ? Feuling recommended .100
also should I stick with the .130 or ? Feuling recommended .100
Road Master
Joined: Jun 2019
Posts: 952
Likes: 528
From: Richmond TX
I had an adjustable pushrod come loose one time shortly after some engine work. It was not a gradual thing. Once the locknut loosened, it sounded like a can of bolts in a paint mixer. You could inspect your rocker boxes and consider installing 'rocker lockers' and of course the lifters could be suspect, especially if they've got some miles on them. Good luck tracking it down.
HDF Community Team
Joined: Jun 2006
Posts: 12,763
Likes: 2,597
From: san antonio
If a push rod was coming loose, you would know it; bike would be unrideable. Never been a fan of Fueling lifters; not sure who makes them but there are only 2 or 3 manufacturers that produce lifters. Cut to the chase and replace them with a set of Johnson Hy-Lifts from WFO Larry. .130" preload might be OK but many today are settng preload at .140"-.145". Spend a bit more for the lifters with pin oiling.
HDF Community Team
Joined: Jun 2006
Posts: 12,763
Likes: 2,597
From: san antonio
To minimize valve train lash and the accompanied noise. At .100" preload, some lifters cannot hold their "prime" under operating conditions and increasing preload makes it easier for lifters to maintain that primed condition.
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Stellar HDF Member
Joined: Mar 2015
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From: Winnipeg
If a push rod was coming loose, you would know it; bike would be unrideable. Never been a fan of Fueling lifters; not sure who makes them but there are only 2 or 3 manufacturers that produce lifters. Cut to the chase and replace them with a set of Johnson Hy-Lifts from WFO Larry. .130" preload might be OK but many today are settng preload at .140"-.145". Spend a bit more for the lifters with pin oiling.
preload from .130 to .140 make that much difference? (Djl you answered that question above, thanks)
thanks for your input
Last edited by Weeboy1; Jul 6, 2023 at 04:34 PM.
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Thread Starter
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Stellar HDF Member
Joined: Mar 2015
Posts: 2,941
Likes: 995
From: Winnipeg
I had an adjustable pushrod come loose one time shortly after some engine work. It was not a gradual thing. Once the locknut loosened, it sounded like a can of bolts in a paint mixer. You could inspect your rocker boxes and consider installing 'rocker lockers' and of course the lifters could be suspect, especially if they've got some miles on them. Good luck tracking it down.