Ignition Sensor Assembly
HDF Community Team
Joined: Jan 2020
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From: Colorado
Maybe lifters are still fine, or just playing the "its" not a problem, until it really "is" a problem instead.
Worst case by not doing the normal maintenance of replacing the A lifter at the 25K mark that HD sugests, it becomes a Its a major problem, when the Needle bearing plastic cage comes apart on cam bearing from severe lifter knock to the cam , and repair cost to solve the problem, is over the $4k mark when the case has to be split to get cam bearing parts out of it.
Hence the Koyo B138 bearing is the same design used on the early motors, the plastic cage bearing, later motors and known to come apart on it own, as the plastic cage breaks apart from just heat and age.
Seasoned HDF Member
Joined: Nov 2006
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From: East Coast, USA
I understand it's good/proper maintenance to replace the lifters, BUT can you please point out where HD suggests the mileage interval is 25K? I haven't found any indication of this in a factory service manual or a technical bulletin.
Last edited by Dano523; Feb 5, 2024 at 01:27 AM.
HDF Community Team
Joined: Jan 2020
Posts: 1,434
Likes: 800
From: Colorado
@Dano523
I understand it's good/proper maintenance to replace the lifters, BUT can you please point out where HD suggests the mileage interval is 25K? I haven't found any indication of this in a factory service manual or a technical bulletin.
I understand it's good/proper maintenance to replace the lifters, BUT can you please point out where HD suggests the mileage interval is 25K? I haven't found any indication of this in a factory service manual or a technical bulletin.
Will need to check in the tsb's/older service manuals, as well the HD internal revision 18523-86B Lifter service/part announcement, since once the B's (late 90's) came into effect to replace the older A's (which came out in 84/86 for XL's), went to longer service life durations with the B lifters.
TSB's ,if anyone want to dig through them.
https://sportsterpedia.com/doku.php/...cres:miscres05
Seasoned HDF Member
Joined: Nov 2006
Posts: 5,888
Likes: 1,902
From: East Coast, USA
Will need to check in the tsb's/older service manuals, as well the HD internal revision 18523-86B Lifter service/part announcement, since once the B's (late 90's) came into effect to replace the older A's (which came out in 84/86 for XL's), went to longer service life durations with the B lifters.
TSB's ,if anyone want to dig through them.
https://sportsterpedia.com/doku.php/...cres:miscres05
https://sportsterpedia.com/doku.php/...cres:miscres05
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