Britbike forum Forums British Motorcycle specific Brands Bsa bulletin board More Oil Pressure Switch

Hi all.

I thought I’d put this in a new thread as my original thread on this subject turned into a mass argument on the thread form used for the pressure switch.

I have attached a photograph of the OPRV area on my engine and the question is; can I remove the slotted plug / bung and fit an oil pressure switch there?

Thank you all for your comments and advice on this forum. A happy new year and best wishes to you all.

Kev E

I think you could. I think that plug is from where the factory drilled the oil way from the pump to the OPRV 'chamber'.
Of course, you would have to get the threads right!

You could give it a go but I think you’ll find the frame rails foul that area.

Frame is in the way but you can cut a hole in it. Thread inside is 1/4-26 but you can drill and tap it out to 1/8NPP. There is not enough wall thickness for the switch but you can weld on a bung.

Instead of the switch, maybe there is enough room to run an adapter for an oil pressure gauge mounted on the handlebars or somewhere like that. You would also have an idea of if your OPRV was working!

Or use an OPRV that has a port for an oil pressure gauge.

Yeah, I like that where can i get it, should fit just fine

Ditto, where can we get one?

Waiting on real life testing. At the moment I can only do a water test.