Mystery part in oil

JotaJohn

New member
While doing an oil change on my 1981 jota 180, this part was found in the used oil, any idea what it is and any action I should take.
 

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It looks like one of the pins from the gear selector drum.
If all gears were being selected then all the pins are present.  It could be a pin that was previously 'lost' and left in the sump, while another was fitted.
This is the situation I found on my 750. 
 
Simon Y said:
It looks like one of the pins from the gear selector drum.
If all gears were being selected then all the pins are present.  It could be a pin that was previously 'lost' and left in the sump, while another was fitted.
This is the situation I found on my 750.

I like this better than my idea.....

 
Check the selection manually before filling with oil - just in case you have to subsequently remove the gear selector cover plate.
Raise rear wheel off gound and go up / down the box a couple of times rotating rear wheel as required.
Loosen the plugs to make it easier.
 
Took the gear selector cover off and checked the selector drum and one pin was missing. Thanks to all for comments and help.
 
I had a rear chain let go when out touring once, Darwin to Melbourne. Scored a new chain and fitted it in the semi dark at a closed service station. Rode off and....not shifting all the way up. Set up the tent beside the road and slept until morning, returned to the now open servo and there under a parked car was my missing selector pin, very happy me. You find those pins in the most unusual places. Rode into Melbourne in the eerie darkness of a full solar eclipse as I remember.
 
JotaJohn said:
Took the gear selector cover off and checked the selector drum and one pin was missing. Thanks to all for comments and help.

Was it just a routine oil change and the pin turned up in the oil??!! If the last time you rode it it was shifting fine then when and how did the pin fall out?
 
During a long ride late last year I noticed a slight oil leak so I decided to fix that along with the oil change. The leak was from the clutch cover which is under the gear selector and cover, as mine has the hydraulic clutch and not wanting to have to bleed it I left it attached and in moving things around I noticed the thin cover/washer that keeps the pins in place had slid off, but did not check the selector pins, luckily I found it in the used oil where it must have dropped.

I was very impressed with the prompt response to my original post, I must be getting senile and did not realize what the pin was, but the help from this forum is invaluable.

Thanks all. 
 
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