Oil light switch

Bubb · May 12, 2022

I have a minor oil leak from the oil switch on lower left of the engine.
I have replaced the crush washer behind the switch, but still have the leak.

Can this switch leak through the actual switch?

If so, then I will need to replace the switch, but I don’t want to buy a new one and find that it hasn’t cured the leak.
The leak is only slight, a few drops on the floor after a ride, but it’s annoying my OCD.

Thanks

theoneandonly · May 12, 2022

all switches can leak .

inside is a diaphragm and 2 contacts , no pressure contacts closed= light on .

pressure behind , contacts open =lights off

diaphragm is rubber ? , ages , gets a split , light stays on , oil leaks thro' switch.

( unless it's italian , and it works normally , and leaks oil )

it's all in the diagnosis , thats the hard part.

scooter paul · May 12, 2022

Bubb said:
I have a minor oil leak from the oil switch on lower left of the engine.
I have replaced the crush washer behind the switch, but still have the leak.

Can this switch leak through the actual switch?

If so, then I will need to replace the switch, but I don’t want to buy a new one and find that it hasn’t cured the leak.
The leak is only slight, a few drops on the floor after a ride, but it’s annoying my OCD

Thanks

Yes, it’s the internal core that’s leaking. A common failure. I’d replace it but you could try a thorough degrease and repair with araldire.

Gelandestrasse · May 12, 2022

https://www.motorworks.co.uk/catalogsearch/result/?q=61311243414 £6.60 from Motorworks for a new one.

Bubb · May 12, 2022

Thanks for the replies chaps.

At least I have confirmation that my diagnosis was along the right lines.
I will get a new switch ordered, and report back once it’s fitted and thoroughly tested.

Thanks again for taking the time to reply.

Bubb

Oil light switch

Bubb

Dogsbody

theoneandonly

looking over the edge

scooter paul

Well-known member

Gelandestrasse

Well-known member

Bubb

Dogsbody

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