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Oil pressure switch spanner size.


68C

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Hi all, bit of silly question, I need to replace my oil pressure switch but having trouble finding the spanner/socket size, access not good with tank and fairing on and did not want to strip bike down until I knew I had the right tool. If anyone has the switch to hand perhaps the could measure it for me. It seems to be around 22mm.

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Just to update this post in case anyone looks at it in the future.

 

Got the oil pressure switch out, measures up as 21mm. I tried a 13/16" standard UK plug socket, would not fit. In the end I used a Snap-On 7/8" plug socket from my aircraft toolbox which worked fine. I did notice the switch is very close to a raised part of the engine block so a cheaper socket may need grinding down a little.

 

To be fair to you Luhbo, I believe continental Europe uses 21mm as a plug wrench, the UK and probably others use 13/16". The switch was very tight, needed the socket with an extension bar and a 2 foot piece of pipe to shift it.

 

As it was so tight and as it has the round connector I assume this is the original switch

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.. what answers another question I "Always Wanted to Know []But Were Afraid to Ask"

 

This morning I made 60km in heavy rain, the pressure light brightly on for nearly the whole distance. What's the problem with your's?

 

Hubert

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Replaced the oil pressure switch with a BMW320 car item.

 

My local auto parts shop supplied it as a Cambiare VE706070 which had a flat connector.

 

I cut the round stud off the old switch to make up a short adapter lead, pleased to see that revealed it was hollow which made soldering a wire into it easy. Crimped a flat female connecter to the other end, a little heat shrink and Bob's your auntie's live-in lover.

 

Oil pressure light now works OK, ignition on-engine not running = light on. Engine running = light out. Suprised it took about five seconds for the light to come back on when I stopped the engine, guess that is a good sign.

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rps20170629_193854.jpg

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... Suprised it took about five seconds for the light to come back on when I stopped the engine, guess that is a good sign.

 

That was probably a cold engine. In the morning I can watch the same, on hot days' evenings and/or after some Autobahn rush sometimes the light flickers at low idle already (100°C). 

 

Nice find, by the way. In most shops nowadays it's nearly impossible to get a spare part just by description. Either you have a correct number or the car documents or you're wasting your time.

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Suprised it took about five seconds for the light to come back on when I stopped the engine, guess that is a good sign.

Yes it is. On an aircraft with (naturally) a mechanical oil pressure gauge.. watching how slowly pressure bleeds at shut down is a good sign of how good the main bearings are. 5 seconds? Pretty good.  :oldgit:

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