Stage 2 question
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Joined: Aug 2018
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From: California
Stage 2 question
Hey All. So I will be doing a stage 2 upgrade using S&S 475 cam with adjustable pushrods, new pushrod tubes, new cam bearing, tappet cuffs and the newest HD oil pump. Also installing a PV. Question is do I have to replace the lifters or can I reuse the OEM with no issues? Work is being done on a 2018 FXFBS with stage one upgrade including TBR Pro Comp-S and OEM air cleaner and HD tuner.
Last edited by Norcalslinger; Oct 1, 2020 at 10:13 AM.
Stellar HDF Member
Joined: Feb 2012
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From: PA
I would changed the lifters While I was in there as well as the lifter cuffs
https://www.sscycle.com/products/tap...-19-m8-models/
https://www.sscycle.com/products/tap...-19-m8-models/
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Joined: Aug 2018
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From: California
I would changed the lifters While I was in there as well as the lifter cuffs
https://www.sscycle.com/products/tap...-19-m8-models/
https://www.sscycle.com/products/tap...-19-m8-models/
HDF Community Team
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From: Wisconsin
This is bad. Should be like the small still polished area.
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From: Seattle
Hey All. So I will be doing a stage 2 upgrade using S&S 475 cam with adjustable pushrods, new pushrod tubes, new cam bearing, tappet cuffs and the newest HD oil pump. Also installing a PV. Question is do I have to replace the lifters or can I reuse the OEM with no issues? Work is being done on a 2018 FXFBS with stage one upgrade including TBR Pro Comp-S and OEM air cleaner and HD tuner.
Feuling's HP+ lifters are 160$ for a set of 4. No reason really to skip out on doing the job right.
https://www.feulingparts.com/sku/4000
Tourer
Joined: Jun 2020
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From: Fairfax, Va
Originally Posted by Fran
The Cam and lifters break in together.
Certainly true of flat tappet cams and lifters. Rollers are much more forgiving.
Inspect them. If the rollers roll smooth, are not pitted, are not frosted, and are fairly low mileage I'd run them without hesitation. Indeed, I'd run the factory roller lifters way before I'd run those adjustable push rods, especially with stock valve springs.
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From: California
I have seen a few comments about this and I am not understanding the problem with adjustable pushrods. I know most of the reputable companies like FM and S&S sell them but if using them is going to make my bike mechanically unsound I have worries. I would rather go the extra mile work/time wise if needed. Again the main reason I am asking about the lifters is Im on a budget. If the consensus is replace them I will wait a bit longer to do the build and purchase them. Please advise.
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Tourer
Joined: Jun 2020
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From: Fairfax, Va
Adjustable PR's add considerable weight over non adjustable PR's, and that extra weight must be controlled by the valve springs - which were designed for the lighter, non adjustable PR's. Add to that the more aggressive opening and closing ramps of after market cams, the valve springs need to deal with those too. At lower engine speeds the extra weight isn't such a big deal, at higher RPM's it might well be.
Over and above the weight, the adjustable PR's are, of course, a multi-piece design. Simply more to go wrong. One member recently posted his battle with the adjustable PR's.
Over and above the weight, the adjustable PR's are, of course, a multi-piece design. Simply more to go wrong. One member recently posted his battle with the adjustable PR's.
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Adjustable PR's add considerable weight over non adjustable PR's, and that extra weight must be controlled by the valve springs - which were designed for the lighter, non adjustable PR's. Add to that the more aggressive opening and closing ramps of after market cams, the valve springs need to deal with those too. At lower engine speeds the extra weight isn't such a big deal, at higher RPM's it might well be.
Over and above the weight, the adjustable PR's are, of course, a multi-piece design. Simply more to go wrong. One member recently posted his battle with the adjustable PR's.
Over and above the weight, the adjustable PR's are, of course, a multi-piece design. Simply more to go wrong. One member recently posted his battle with the adjustable PR's.
I like this site if I want to get serious:
https://suburbanharley.com/Parts-Cat...-Cylinder-Kits
BTW, stage two here and all SE on a '19 FLFBS, yes, even upgraded the oil pump.
Last edited by Tampa Fatboy; Oct 1, 2020 at 05:24 PM.
Road Captain
Joined: Feb 2020
Posts: 615
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From: California
Hey All. So I will be doing a stage 2 upgrade using S&S 475 cam with adjustable pushrods, new pushrod tubes, new cam bearing, tappet cuffs and the newest HD oil pump. Also installing a PV. Question is do I have to replace the lifters or can I reuse the OEM with no issues? Work is being done on a 2018 FXFBS with stage one upgrade including TBR Pro Comp-S and OEM air cleaner and HD tuner.