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Oil pressure sensor

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Oil pressure sensor

Posted by Andrew Heathwood at April 09. 2017

Hello all

I've recently fitted one of these oil pressure sensors to my 1972 Roadster and thought I'd share the information:

 photo image-0_zpsur1hlhto.jpg

It fits to the rocker feed oil supply on the timing side using a double banjo bolt.  I used copper washers (2x 3/8in, 1x 5/16" ID) in preference to the Dowty seals provided as I found they fitted better. The wiring is a simple switch on the earth side and I had the indicator warning light (centre one) in the headlamp available to use.

 photo image-2_zpsiczovdb4.jpg  photo image-5_zpsoleoipjw.jpg

The switch is available for $30 from Don Pender. http://www.tritonmotorcycleparts.com/297620484 although not listed yet on his website but just email him at the address shown on the website. I paid via Paypal and the switch arrived within 2 weeks.  The sensor will also work with the combined Charge/Oil Pressure Warning light from http://www.improvingclassicmotorcycles.com/products.htm if you do not have a warning light spare.

It's a bit 'snug' between the engine and gearbox but fits fine:

 photo image-3_zpsjdt6rebe.jpg

This is a basic sensor but could help indicate a major failure of oil pressure, e.g. anti-wet sump valve failure or forgetting a manual switch. The warning light goes out after running the bike for around 5 seconds in normal use.  Not standard for a Norton I know but it could help avoid a 'Not a good day' event http://www.nortonownersclub.org/noc-chat/technical4-commando-forum/759661646?b_start=0#85312273

Andy

Re: Oil pressure sensor

Posted by richard_mills at April 09. 2017

Where in UK can you buy a 'double banjo bolt'?

Re: Oil pressure sensor

Posted by Andrew Heathwood at April 09. 2017

Richard

Venhill do them. There may be other suppliers.

http://www.ebay.co.uk/itm/Venhill-5-16-Bsf-Domed-Double-Banjo-Bolt-Chrome-/302077560589?hash=item465539c70d:g:JnYAAOSw8w1X3gTi

Andy

Re: Oil pressure sensor

Posted by paul_nicholls at April 12. 2017

I've seen a similar set up with a thicker aluminium rocker spindle plate tapped to take an oil pressure switch.

Paul

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