Primary Noise.....Inner Primary Bearing??
Road Master
Joined: Jun 2005
Posts: 1,212
Likes: 4
From: From Illinois; Currently Belgium
I've had this for a couple of thousand miles. I noticed it after I did the SE compensator upgrade and refilled the primary with different fluid from last change. It's most noticeable when hot. The sound doesn't stop with the clutch in or out in neutral or in while in first. I've heard it can also be the auto tensioner a click or two too tight on the chain. I chose to ignore it to see what will happen.
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Road Warrior
Joined: Feb 2009
Posts: 1,274
Likes: 130
From: Now Western TN
Are they changing the inner primary bearing and the race or just the bearing? Usually, the reason the bearing is making noise is because the race has walked out into the primary bearing. I suppose the bearing can go **** up without help from the race but most I have seen went bad because the race walked. I would have them replace both while they are at it. See if you can get them to spring for the SnS tapered race; it would be worth it even if you had to pay for the part. At least take a look at the race and see if it appears to have move outward. If it h has moved and not replaced, the new bearing won't last long.
Maybe I am looking at it wrong, can you explain how this works?
Thanks!
Road Master
Joined: Jul 2006
Posts: 862
Likes: 1
From: Western PA
I had my inner primary bearing and race replaced last week under warranty. Bike just turned 12k miles. The noise would stop after I pulled the clutch in while in neutral.
You may want to call around to other dealers to see if they have the parts in stock. I did this and got my bike back sooner. The bearing and race cost $27.00. I also had the se comp installed while it was apart.
You may want to call around to other dealers to see if they have the parts in stock. I did this and got my bike back sooner. The bearing and race cost $27.00. I also had the se comp installed while it was apart.
HDF Community Team
Joined: Jun 2006
Posts: 12,776
Likes: 2,607
From: san antonio
djl.....are you talking about the inner race on the main shaft walking into the primary bearing? If so how does this damage the primary bearing? I was looking at the service manual and it would seem to me that the race would seat up against the primary bearing once the inner primary was installed. I see the call out for .100 - .125 spacing from the main drive gear, so that sounds like they want spaced out far enough to seat up against the primary bearing inside the outer race in the inner primary cover.
Maybe I am looking at it wrong, can you explain how this works?
Thanks!
Maybe I am looking at it wrong, can you explain how this works?
Thanks!
The inner primary bearing rides on the inner race and the inner primary bearing seal, seals against the inner race. In engines that make 100+HP, the inner race can "walk" in or out. In or towards the transmission which can cause a transmission fluid leak by walking into the transmission 5th gear/mainshaft seal, or out toward the primary causing a primary seal leak. If the inner race walks out, it would seem to me that the load on the inner bearing is unevenly distributed which leads to noise and eventually a worn race or damaged inner primary bearing but that's just my take.
A couple of repair options that are being used when replacing the inner primary race/bearing. The SnS inner race has a tapered ring on the inner bore which is supposed to lock the race to the mainshaft but I don't believe the SnS race will work with a six speed; not sure. The Baker "Hi Torque" innner primary bearing is sealed and has a special inner race that rides on the mainshaft eliminating the requirement for the inner race. All ***** has a similar offering. I have read that there have been problems with the Baker unit but have read all good reports on the All *****. Personally, I stick with the OEM parts.
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Road Warrior
Joined: Feb 2009
Posts: 1,274
Likes: 130
From: Now Western TN
No, I think you are looking at it right; I should be more specific.
The inner primary bearing rides on the inner race and the inner primary bearing seal, seals against the inner race. In engines that make 100+HP, the inner race can "walk" in or out. In or towards the transmission which can cause a transmission fluid leak by walking into the transmission 5th gear/mainshaft seal, or out toward the primary causing a primary seal leak. If the inner race walks out, it would seem to me that the load on the inner bearing is unevenly distributed which leads to noise and eventually a worn race or damaged inner primary bearing but that's just my take.
A couple of repair options that are being used when replacing the inner primary race/bearing. The SnS inner race has a tapered ring on the inner bore which is supposed to lock the race to the mainshaft but I don't believe the SnS race will work with a six speed; not sure. The Baker "Hi Torque" innner primary bearing is sealed and has a special inner race that rides on the mainshaft eliminating the requirement for the inner race. All ***** has a similar offering. I have read that there have been problems with the Baker unit but have read all good reports on the All *****. Personally, I stick with the OEM parts.
The inner primary bearing rides on the inner race and the inner primary bearing seal, seals against the inner race. In engines that make 100+HP, the inner race can "walk" in or out. In or towards the transmission which can cause a transmission fluid leak by walking into the transmission 5th gear/mainshaft seal, or out toward the primary causing a primary seal leak. If the inner race walks out, it would seem to me that the load on the inner bearing is unevenly distributed which leads to noise and eventually a worn race or damaged inner primary bearing but that's just my take.
A couple of repair options that are being used when replacing the inner primary race/bearing. The SnS inner race has a tapered ring on the inner bore which is supposed to lock the race to the mainshaft but I don't believe the SnS race will work with a six speed; not sure. The Baker "Hi Torque" innner primary bearing is sealed and has a special inner race that rides on the mainshaft eliminating the requirement for the inner race. All ***** has a similar offering. I have read that there have been problems with the Baker unit but have read all good reports on the All *****. Personally, I stick with the OEM parts.
Thanks for the info
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