Thank you. It is odd because I do have a washer pump attached to the windshield washer reservoir and it works. This is why this puzzles me so.

 

no it looks very similar to this Vac relief valve from a servo

 

Any idea what that does? Or why it's there?

 

can't match it up to a pic in the factory part catalog

is this a "not UK" car ??????

could be one of the "not UK" issues you'll find

 

https://www.moss-europe.co.uk/anti-r...e-stn127z.html

 

https://www.johnrichardssurplus.co.u...-adu9535l.html

 

It is a valve/component to stop the car from dieseling?

 

I was going to say wire smoke reservoir...

 

https://macleansbridge.com/index.php...-control-valve

https://www.mgexp.com/phorum/read.php?1,2859569

It is a valve/component to stop the car from dieseling?

that's my read ..... the links I hung mention the 'stop diesel' point a few times. Note they are from cars that were sold in the US in the 70/80 like Triumph

I suspect this was an attempt to compensate for 'low octane gas' once lead was tossed out as an additive in the US.

Not listed in Mini parts as the car was not imported to the US at the time .... but Trium' and MG were .....

************************

side bar .....

my 79 started dieseling (aka run on) the first time I tried 'mid grade octane' ...... (many years ago)

IF you understand what causes 'run on' or dieseling ... and what OCTANE means .... you'll understand

drained the tank, filled with premium and problem GONE