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 Posted: Apr 9, 2020 10:31AM
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Looking at the photo of the "top" it appears that something has broken off. Looking at the bottom it almost looks like a part of a breaker bar wrench, or part of a tool. (maybe a Tee handle swivel wrench/socket)? It appears to be well machined. It does not look like a piston key ring to me.

 Posted: Apr 7, 2020 05:13PM
TK
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AU
With the updated photos, I guess piston key ring too

 Posted: Apr 7, 2020 04:09PM
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Hi Doug if you look at the middle their a hole not all the way through it and dark in the middle that what it look like all around before I polish it to make look clean and it very well made, the bottom is slightly worn from over time. Maybe it nothing but I'll wait till the rain die down and take apart.

Thank, Thai

 Posted: Apr 7, 2020 03:43PM
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US
Quote:
Originally Posted by Thai168
it look shiny because I clean it up, and I don't see this in the manual
I agree with Kelley.  Part of a piston key ring.

 Posted: Apr 7, 2020 01:15PM
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US
Since the part you found is solid it cannot be part# 2a3624.  2a3624 has a hole through it.  

Do you or someone in your family work with radio controlled planes or cars as a hobby?  To me, that part looks like the pistons used in tiny engines and 12V air compressors.  I have never seen anything like that on my Mini.

Doug L.
 Posted: Apr 6, 2020 04:00PM
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It look like part# 2a3624 but if you see the new pics., is doesn't look same

 Posted: Apr 6, 2020 03:11PM
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Please post a photo of the Top and bottom.

 Posted: Apr 6, 2020 03:00PM
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it look shiny because I clean it up, and I don't see this in the manual

 Posted: Apr 6, 2020 01:22PM
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US
It probably fell off of the someone's keyring. Look up 'piston keyring'.

Kelley

"If you can afford the car, you can afford the manual..."

 Posted: Apr 3, 2020 07:27PM
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It was under the tire when job was done

 Posted: Apr 3, 2020 07:01PM
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Is a duplex timing chain

 Posted: Apr 3, 2020 06:58PM
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It's not, do you know where is for?

 Posted: Apr 3, 2020 03:25PM
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Search P.N. 2A3624 in the MM parts catalogue.

 Posted: Apr 3, 2020 09:43AM
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Did it fall out of the timing chain area upon cover removal? Does that engine have chain tension guides inside the cover area? Possibly part of that assembly? Just guessing...

 Posted: Apr 3, 2020 03:34AM
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GB
Possibly a bit broken off a wheel cylinder, but I don't think it's Mini (or entire).

 Posted: Apr 2, 2020 04:50PM
TK
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AU
Brake piston?

 Posted: Apr 2, 2020 03:43PM
 Edited:  Apr 6, 2020 03:22PM
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Image Gallery
I found this under the tire after everything was done, I was working on remote housing and timing cover gasket and this was under tire. I try to fine this in the manual but not hard enough. Any help to where this goes. Thank