S&S vsJohnson-Hylift
HDF Community Team
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From: san antonio
BTW, did you get the Hy-Lifts from WFO Larry?
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From: poway
Depending on the years made SnS regular lifters were made in Mexico. They were not the best. Current SnS lifters are made by Johnson/Hylift..
If you just pulled out the SnS, they won't compress. The Hylifts may or may not be filled.
Don't worry about going to 0.140 deep. If the pushrod still spins, you're good. I'd run the pushrod in until it don't turn, back off til the pushrod starts to turn, go 1/4 more and lock down.
If you just pulled out the SnS, they won't compress. The Hylifts may or may not be filled.
Don't worry about going to 0.140 deep. If the pushrod still spins, you're good. I'd run the pushrod in until it don't turn, back off til the pushrod starts to turn, go 1/4 more and lock down.
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Road Master
Joined: Oct 2012
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From: Beaumont, Ca
Tappet Bore
Before installing my new Johnson-Hylift tappets, I ran my finger down the sides of the tappet bores to check for smoothness, and noticed that each bore has a small cavity on the wall of the bore. They were machined in at time of manufacture. It was not a hole, but a cavity. I have no idea if this might be a conduit for oil or not, or whether oil flows in or out, but since some people say that the tappets are non directional, I went ahead anyway and inserted the tappets so that the oil hole was directly facing the cavity, just in the event that oil comes out of there and into the oil hole. Does anyone know the purpose of the cavity? It is about half way between the rollers and the cup of the tappets.
Last edited by cgmartine; Jun 29, 2023 at 01:39 AM.
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Road Master
Joined: Oct 2012
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From: Beaumont, Ca
Pacific Mike just directed me to the service manual, where it confirms what I had suspected. In section 3-7, it states that each lifter bore has an oblong hole where oil comes in and flows to the oil hole on the lifter. It further notes that there is a second, round hole drilled on the lifter bores. Oil then flows out thru the round hole and feeds oil to the piston jets in the flywheel compartment.
I tend to believe that at least as it relates to this 2000 Springer, and possibly to other models as well, lifters are indeed directional. It stands to reason that if you install the lifter with the oil hole facing away from the oblong hole, oil would not have a direct flow of travel to the hole on the lifter. Although oil would eventually make its way around the lifter body and into the oil hole, it would not be as efficient. So the short story is that oil comes into the oil hole on the lifter from the oblong hole, and exits the bore thru the round hole. This would of course, depend on where the manufacturer of the lifter placed the oil hole on the lifter. The oil hole on the lifters would have to be facing the front of the bike, where the bore holes are located. Just my thoughts, from a shady tree mechanic who does not know what he does not know!! Anyways, that's my story and I am sticking to it!!
I tend to believe that at least as it relates to this 2000 Springer, and possibly to other models as well, lifters are indeed directional. It stands to reason that if you install the lifter with the oil hole facing away from the oblong hole, oil would not have a direct flow of travel to the hole on the lifter. Although oil would eventually make its way around the lifter body and into the oil hole, it would not be as efficient. So the short story is that oil comes into the oil hole on the lifter from the oblong hole, and exits the bore thru the round hole. This would of course, depend on where the manufacturer of the lifter placed the oil hole on the lifter. The oil hole on the lifters would have to be facing the front of the bike, where the bore holes are located. Just my thoughts, from a shady tree mechanic who does not know what he does not know!! Anyways, that's my story and I am sticking to it!!
Last edited by cgmartine; Jun 30, 2023 at 02:26 AM.
HDF Community Team
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From: san antonio
In a static environment, I might agree with the OPs directional logic but in an operating environment and considering the movement of the lifter in the bore and the amount of time the referenced holes actually align, I can't agree that lifters are directional. Drop the lifters in any way you want, the result will be the same either way.
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Road Master
Joined: Oct 2012
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From: Beaumont, Ca
Service Manual: Page 3.39 Oil Flow: ....... 1. Install lifters on the crankcase bores with the oil hole on the inboard side and the flats on the lifters facing forward and rearward.
Seasoned HDF Member
Joined: Mar 2012
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From: Centennial, CO
I asked WFO Larry about direction. He said either way was fine- lifter hole facing inside or outside. I put them in facing inside.
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From: poway
The manual says that but on bikes that have never been apart, I've seen then the other way, 3 out of 3 times.
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Road Master
Joined: Oct 2012
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From: Beaumont, Ca
I believe you also have to be aware of the direction of the lifter rollers, which will dictate which direction the oil hole ends up facing, which I believe will be dictated by the flats on the lifter and the anti rotation pin. When inserting the lifters in their bore, the rollers need to roll (backwards and forwards) in the same direction as the cam lobes, otherwise, the direction of the rollers will be facing cross the face of the cam lobes.
Last edited by cgmartine; Jul 3, 2023 at 03:37 AM.
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