G oog le BadWeB | Login/out | Topics | Search | Custodians | Register | Edit Profile

Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Engine » Big Mechanicals: Head, Cyl, Piston, Rod, Crank, Flywheel, Cases, Bearings » Excessive end play on oil pump shaft - 06 XB « Previous Next »

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

Curious_george
Posted on Sunday, October 09, 2016 - 06:27 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

6 Months or so ago, the oil pressure light came on just as I was pulling out of the drive. Killed the bike and pushed it back into the shed. Tore the oil system apart and couldn't find anything wrong, put it all back together and there was no problem. Left me a bit baffled.

Same thing happened today - got about 200m down the road, oil pressure light came on. Long push back home and began pulling things apart.

-Bike has the right amount of oil
-Oil gets to the pump
-Oil filter is full
-Driven and drive gears are both in good condition

When I pulled the pump off, I noticed that there was a large amount of play in the shaft. Upon tearing the pump down, I found that the play was enough that the shaft will disengage from the lower pump! I can't see any significant wear inside the housing that would cause this, the circlip and washer are present and in good condition - it really has me baffled. It's almost as if the detent for the circlip has been machined in the wrong place or the shaft is too short - both very unlikely I know.

Below are a couple of pictures showing just how much end play there is, and one showing the shaft disengaged from the pump.


Shaft fully home



Shaft at full play



Shaft disengaged


I wondered about removing the circlip and washer and fitting some shim washers underneath to reduce the play, but then there is the concern of them getting eaten over time and ending up in the engine, plus it also doesn't solve the problem of how this happened in the first place.

Any advice would be greatly appreciated, thanks.
Top of pagePrevious messageNext messageBottom of page Link to this message

Brother_in_buells
Posted on Sunday, October 09, 2016 - 02:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

There was a post or thread about this a couple years ago ,did a search but could not find it.
If you post this also in the big bad&dirty section it gets more reaction.
« Previous Next »

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

Username: Posting Information:
This is a private posting area. Only registered users and custodians may post messages here.
Password:
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