G oog le Buell 1125R Forum | Login/out | Topics | Search | Custodians | Register | Edit Profile


Buell Forum » 1125R Superbike Board » Sprag clutch replacement « Previous Next »

Author Message
Top of pagePrevious messageNext messageBottom of page Link to this message

Stimbrell
Posted on Tuesday, July 03, 2018 - 06:09 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

In common with others I have had my starter sprag clutch fail and have done the repair but thought I would post for a couple of reasons, first being that when I went to order the housing it comes up as no longer available from dealers. I am in the UK so ordered the kit from St Paul's which includes the housing and ordered the 52T gear here. Post cost was $70 and my enforced contribution to the thieving scum politicians, AKA import costs, was $120, total cost of parts is $780. Here are the photos of old and new parts and the second reason for this post.


Gear old



Gear new



Housing old



Having a problem with photos so continued in next post.


(Message edited by stimbrell on July 03, 2018)

(Message edited by stimbrell on July 03, 2018)
Top of pagePrevious messageNext messageBottom of page Link to this message

Stimbrell
Posted on Tuesday, July 03, 2018 - 06:37 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)


Housing new


As you can see it is the spring holding the cams in place that has failed


Sprag



So the second reason for this post is a thought occurred, what if the wear marks on the gear and housing are normal wear and tear and all that actually needed to be replaced was the sprag or if it was available, just the spring.


So, if anyone has photos of these parts from a bike that has no starting problems and they look like these old parts it could save people who have this failure a lot of money.


Spring
Top of pagePrevious messageNext messageBottom of page Link to this message

Stevel
Posted on Tuesday, July 03, 2018 - 04:18 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

There is no inexpensive way to resolve these Sprague failures. All three components have to be changed together. The better question to ask is why do they fail? The answer is lack of adequate oil. Please note that there is no direct oil path. It is oiled by secondary oil from the crank.
Top of pagePrevious messageNext messageBottom of page Link to this message

Dannybuell
Posted on Tuesday, July 03, 2018 - 07:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

overfill the engine oil to 3.0 quarts or ???
Top of pagePrevious messageNext messageBottom of page Link to this message

Stimbrell
Posted on Wednesday, July 04, 2018 - 03:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

As the housing is now no longer available replacing all three parts is not going to be an option in the future.
Top of pagePrevious messageNext messageBottom of page Link to this message

Stevel
Posted on Wednesday, July 04, 2018 - 06:17 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You know that neither Buell, EBR or ROTAX made this part. It was made by a vendor. This is true with most of the parts used. Somebody makes this piece.......who is it?
Top of pagePrevious messageNext messageBottom of page Link to this message

Stimbrell
Posted on Wednesday, July 04, 2018 - 01:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

A good question Steve, as you may have noticed I have asked a similar question relating to the steering head bearings here and while some have had more progress than me there has never been an alternative supplier willing to supply these bearings identified, I now re-grease the bearings every time I change a tire. The bottom line is that those of us that want to keep these bikes on the road are going to have to start getting inventive. I dread the day I have to stop using this bike due to parts not being available.

(Message edited by stimbrell on July 04, 2018)
Top of pagePrevious messageNext messageBottom of page Link to this message

Stimbrell
Posted on Friday, July 06, 2018 - 06:33 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

If anyone does have to remove their rotor for a reason other than a starting problem and they would be willing remove the sprag and take some photos that would be really informative. It is only six bolts and is easy to do if the rotor is on the crank when loosening and tightening the bolts.
Top of pagePrevious messageNext messageBottom of page Link to this message

651lance
Posted on Friday, July 06, 2018 - 09:29 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Is this what your looking for?













































Top of pagePrevious messageNext messageBottom of page Link to this message

Stimbrell
Posted on Friday, July 06, 2018 - 11:30 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It is photos of the sprag, housing and 52T gear that are used but working OK that I would like to see, so I can compare them with the parts that I removed, I suspect that my gear and housing were actually just displaying normal wear marks. Your photos look like new part I think? Thanks though.
Top of pagePrevious messageNext messageBottom of page Link to this message

651lance
Posted on Friday, July 06, 2018 - 12:55 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

New parts off the shelf.
Top of pagePrevious messageNext messageBottom of page Link to this message

Katsunaka
Posted on Wednesday, July 18, 2018 - 10:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Im in the middle of the very same. I got the bike taken apart as much as I can.

Removed the Y pipe down to the muffler section of exhaust, the starter, the stator cover.

My bike is in pieces. I didn't have the Rotor removal tool to continue, so I made a few notes and left the bike the way it was.
« Previous Next »

Add Your Message Here
Post:
Bold text Italics Underline Create a hyperlink Insert a clipart image

Username: Posting Information:
This is a public posting area. Enter your username and password if you have an account. Otherwise, enter your full name as your username and leave the password blank. Your e-mail address is optional.
Password:
E-mail:
Options: Post as "Anonymous" (Valid reason required. Abusers will be exposed. If unsure, ask.)
Enable HTML code in message
Automatically activate URLs in message
Action:

Topics | Last Day | Tree View | Search | User List | Help/Instructions | Rules | Program Credits Administration