ok guys has anyone have a photo of a left hand feul tank ,from around 1962 i believe there is a piece missing from mine i have a brass threaded hole in the bottom and i am thinling maybe it should have something attached at the moment it has a bolt in it help
not sure if someone has made the hole and drilled the thread for the bolt

I think you are talking about the drain plug?
It is a bolt with a tube out of the centre
You could also use a bolt if you have lost the original

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1969 Cooper "S"
1967 Mini Deluxe
1973 Clubman Van (the fleet spare)
1978 ex 1275 LS ("Wizard" Eaton Supercharged)
2015 HSV GenF GTS(occasional drive & tow car)
2019 MINI F55 Cooper S

DO NOT use a bolt - it won't seal properly

it's one of these, or use a brake bleeder

http://www.minisport.com.au/prod2131.htm

That's a good idea, never thought about a brake bleed valve

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1969 Cooper "S"
1967 Mini Deluxe
1973 Clubman Van (the fleet spare)
1978 ex 1275 LS ("Wizard" Eaton Supercharged)
2015 HSV GenF GTS(occasional drive & tow car)
2019 MINI F55 Cooper S

Thread is 3/8 UNF.
These drains are a PITA, if/when my tank comes out again it'll be getting a brass plug and some Loctite.

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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.

My vans tank has a bolt, similar to a sump plug. my sedans have the drain tube. What should the van have?

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Dog Food! Most kids like it more than Broccoli.

bolt - very different setup to a sedan

ok guys thank you very much for youre reply to my q's on fuel tank very much appreciated thanks for the link to the fuel pipe and for the ideas for the other methods.....laz