Which Sill

MK111 · Post by **MK111** » Fri May 08, 2020 11:44 am

Hello Folks.

My MK3 Mini was registered in the first week of June 1971. The engine/gearbox is green. As you can imagine, high on the list of things to do is to replace the sills, but which ones, 4 flute or 6 flute? Does anyone know the change over date please?

Thank you for your attention.

Regards.

John

davidnutland · Post by **davidnutland** » Fri May 08, 2020 12:37 pm

I would say the 6 didn't arrive until 197374

Post by **Simon776** » Fri May 08, 2020 1:52 pm

I would say you want 6 vent sills, on the Mk 3 Cooper S they changed late 1970ish.

johnv · Post by **johnv** » Fri May 08, 2020 2:10 pm

Hmm my mk3 S has 4 flute sills..

Post by **Supersonic** » Fri May 08, 2020 7:47 pm

johnv wrote: ↑Fri May 08, 2020 2:10 pm Hmm my mk3 S has 4 flute sills..

My 24 November 1970 built Mk3 Cooper S also has 4 flute sills. Another car over here built middle March 1971 has 4 flute sills and it is 100% original

Alan

Post by **Supersonic** » Fri May 08, 2020 7:52 pm

Not correct what I said, that Mk3 Cooper S I referred to had its PDI inspection middle March 1971

Alan

MK111 · Post by **MK111** » Tue May 19, 2020 9:15 am

Thanks everyone for your input.
Looking at the M-Machine web site, it would appear that the change from 4 to 6 flute was in the MK3 production run, but when.
Further research is required.

John

mk1-forum.net

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