Ok doing an oil change and found this stuck to the magnet on drain plug:



Bit worried now as the engine and gearbox has not long had a rebuild and to me looks like something has broke.

Still runs great however.

Its a bit fuzzy. Is that a piece of an allen key?

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SooperDooperMiniCooperExpertEngineering

All garage work involves equal measures of enthusiasm, ingenuity and a fair degree of irresponsibility.

Bent roller from the gear box? Possibly something left behind during the rebuild

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The best part of fixing your mini is the test drive

Minis..

1976 van daily drive
1975 van
1968 deluxe in the shed
1967 deluxe high strung 1310
1959 austin healey sprite

Just rebuilt clutch master cylinder as was backing off on its own, had a couple instance where i had to use a bit of force (not much) to get it into neutral (clutch was starting to engage while clutch pedal was fully in) so perhaps is something from the gearbox.

Better pic:

Better out than in!

Whatever it is it isnt meant to be that shape.

Definately better out.

_________________
The best part of fixing your mini is the test drive

Minis..

1976 van daily drive
1975 van
1968 deluxe in the shed
1967 deluxe high strung 1310
1959 austin healey sprite

Should i be concerned?

Relieved it's out! Hopefully it stuck to magnetic plug early and hasn't done any damage!

The drive tang on a helicoil?

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It's easy once you know how.

It's a 5c coin. Oh, wait...

https://www.google.com.au/search?q=heli ... B345%3B230

Yes does look like one.

Diesel 27 wins the prize...a good get that. Very impressed.

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1964 Cooper UK 970 S 'CZ 4289'

Thats a big recoil if its the size of a 5c coin....must be the sump plug.

I had a gearbox here recently with a helicoiled sump plug hole, they had left the tang on but bent it outwards, hoping this would prevent the helicoil screwing out.
It looked just like this one does.

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

When the sump plug does leak (and it will because i guarantee that the helicoil is not square to the mating face and a copper washer won' be able to seal), get one of the good drmini in aust steel replacement inserts and forever have a leak free sump plug!

As far as being concerned about the internals, it is out now and unlikely to cause any more damage. It is not like it is one part of a disintegrating bearing that will ruin the rest of the engine. I doubt there were many threads that needed a helicoil, sump plug is most common, so unlikely to be more tangs floating around inside.

cheers
michael

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the world is a book, and those who do not travel read only a page
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It was a pleasure ausmini. I'll miss all you misfits and reprobates