I have an 850 that also has the the hole but no grommety thingie for the pump vent. (long gone!

The vent was for the diaphragm on the pump on the non fuel side. the diaphragm has to move back and forth and the non fuel side has to be vented to atmosphere, if it were sealed it wouldn't work to stop the elements being sucked into the pump, it draws air in and pushes it out through the tube into the cabin!

cheers

Kevin

Looks like a job for.......

Repro - man!

We got the seat belt clips available again, so who ya gonna call for a breather vent grommet?

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Cooper S Mk2
Cooper S Mk1
ex Cooper S Mk2, various Morris 1100s, 1300s, 1500s, Leyland Sherpa!

thanks to all those who replied, so would it be fair to conclude that the discovery of both spot welded "j" brackets and fuel pump breather grommet do not necessarily mean cooper s? How about thicker brake pedal sitting higher than the clutch pedal, any comments on that one.

MiniMatics also got a thicker brake pedal, but I don't think it sits high like the S 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.

The brake pedal is easy to change but if it is in a round nose shell with the heater hooks, the fuel pump vent, the wiring harness with the extra wire for the pump, the boot board brackets, the second tank brackets, the oil cooler mounts and the right numbers on the shell it should be a Cooper S shell. Or a very good copy.

Months ago i bought one from john, cost me $50 and it was his second last one.

YES! early english minis did come with the breather. My brother has an early english import (64 i think?) it has the hole with the grommet.

Few weeks ago i also saw one come up for sale on uk ebay. ( i didnt win though =( )

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seems like they are worth their weight in gold!

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1967 Cooper S - new front bearings to do.
1965 Cooper S shell - Slow progress. No time or money!
1966 Deluxe- next rustoration!
Mk 2 & XJ6 Jags. Less said the better.

Dont forget the body number stamping.

M2 / 06 means Cooper S.

And chassis number prefix.
YKG2S2 (Mk1) or YG2S4 (Mk2)

Cheers,
Watto.

Whats this for? To build one or see if you have one? If it has an original engine and an ID plate on the firewall and stamp on radiator shroud that says it is a Cooper S (by the prefixes) its a good start. Even they can be fake so paperwork is a big help too.

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Flute - 68 MK I Cooper S
Member: VMCI #2474
Member: International Mini Model Collectors Club

Yes, quite true.

But it is apparently harder to fake chassis and body numbers than it is to fake additional brackets and holes.

M2 / 06 is really the most important part, as it pertains only to a Cooper S body shell - the M2 standing for, I believe, Morris 2-door, and the 06 meaning YDO6 - Cooper S. M2 / 05 will be Mini De Luxe. M2 / 04 will be Mini Minor

The size and placement of the stamping is important, as is the chassis number stamping and sequence.

We have covered most of this in TME.

I have seen one car that the owner swears black and blue is a genuine Cooper S, sold to him many years ago as such, that had M2 / 05 for the body number prefix, and the chassis number was nowhere near the 500 difference from the body number. Although a very good forgery, the car was undoubtedly, in my mind, faked from a Mini De Luxe.

Cheers,
Watto.

There is no need to be so sarcastic. Watto's info is with good intentions and simply meant to be informative.

As for paperwork, I assume you mean the original owner's book. Anything else is as only as good as the source document.

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1967 Cooper S - new front bearings to do.
1965 Cooper S shell - Slow progress. No time or money!
1966 Deluxe- next rustoration!
Mk 2 & XJ6 Jags. Less said the better.

A quick way to spot a genuine S body is to check the breather tube for the RH tank. The brackets that hold it should be spot welded to the bulkhead. This would be hard to fake.

Pete

Suspicious maybe but not sarcastic. Just asking the question. Oh, and my question has no connection to anything Watto has said. 'Oldtimer' hasn't offered much in the way of an explanation as to why he wants to know, not that he has too. If he has found one to buy and wants to know what to look for then we can provide some help. If he is converting a mini into a Cooper S for someone else to buy I wouldn't bother.
In terms of paperwork, I have the original registration papers for mine which states on it 'Cooper S' and combined with the car and matching numbers I am pretty satisfied that it is genuine. A copy of the papers can be obtained through the Transport section in most states via an archive search for a small fee which is what I did at Vicroads. They were very helpful.

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Flute - 68 MK I Cooper S
Member: VMCI #2474
Member: International Mini Model Collectors Club

I submitted an FOI request to NSW RTA asking for original registration information for my ex-NSW Police 1970 MK II S and subsequently had a phone call from a very friendly guy who said all the registration records for that period were destroyed in the 1980's so they couldn't help. He was very sympathetic to my cause (he worked for BMC back then and was a Mini enthusiast) but the information was simply not available any more.

Bummer!

The RTA can't tell me who the last registered owner of my Cooper S was as their records are incomplete.
I know who the last registered owner was, it was me in 1983.

This lack of records is a big concern to all owners of classic cars. It makes it a lot easier to bypass the system if they don't have the documentation to disprove someones made up story.