Diff Drain Plug Thread

Post by: **Donels** » Mon Sep 24, 2018 5:59 pm

Does anyone know what the thread size is for the diff drain plug on a 1972 +2?
Some gorilla has tightened the plug and stripped the thread. It has just enough purchase to refit and be carefully tightened and I used Loctite to hopefully ensure it holds. However, it really needs a helicoil.

Post by: **types26/36** » Mon Sep 24, 2018 6:11 pm

I believe it is 1/2" unf

Post by: **richardcox_lotus** » Mon Sep 24, 2018 6:12 pm

Paul Matty can supply a replacement.

Regards
Richard

Post by: **Donels** » Mon Sep 24, 2018 6:46 pm

Thanks for the info Brian but these are sump plugs. The diff housing is Lotus unique, does your 1/2" unf refer to this?.

Dave

Post by: **types26/36** » Mon Sep 24, 2018 6:55 pm

Opps

sorry didnt read Diff.

Post by: **CBUEB1771** » Mon Sep 24, 2018 7:10 pm

The fittings in the differential housing are all BSPP,
Drain: 1/4 BSPP
Fill: 1/2 BSPP
Breather: 3/8 BSPP
The plugs are all brass and use fiber crush washers.

Post by: **Donels** » Tue Sep 25, 2018 8:25 am

Thanks Russ.

Post by: **billwill** » Tue Sep 25, 2018 11:22 am

They are probably standard plumbing parts in Britain.

Diff Drain Plug Thread

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