Oil pressure switch on rocker spindle

perilouspierre · May 9, 2018

I have recently bought a 74 850 Mk2A. Not been restored but is quite tidy with some nice parts on it. One thing I have never come across before is this type of oil pressure warning device, amybody know anything about them. Looks like it is wired to the red warning light on the headlamp shell.

Danno · May 9, 2018

Looks like an automotive oil pressure sensor adapted to a Commando head. I have heard of gauges with sending units on Nortons and I used to run a double banjo on the end of the rocker oiler with a line to a pressure gauge, but this is the first idiot-light setup I've seen.

Deets55 · May 9, 2018

Looks similar to Madass’s idea, except his switch comes off the the oil feed line at the timing case connection.

Burgs · May 9, 2018

Looks like a good idea though, pity there isn't smaller switches available!

Personally I would have put it on the rear spindle so it was a bit more out of sight?

Burgs

acadian · May 9, 2018

The switch kit from madass is available and does the job well, it's tucked away at the rear of the timing chest, and is simple to install.

Scroll to post 66 on this thread
https://www.accessnorton.com/NortonCommando/oil-pressure-sensor.21889/page-4

Mr. Rick · May 9, 2018

I think it's cool! Put a red LED in the bulb holder, easier to see in the daylight...

Oil pressure switch on rocker spindle

perilouspierre

Danno

Deets55

Burgs

acadian

Mr. Rick

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