SOHC.co.uk Forums > CB500/550

What are the symptoms of a faulty oil pressure relief valve?

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SteveW:
Found out the other day that my oil pressure switch is leaking at the screw thread where the wire to the light goes.
The switch is just over 3 years old so I’m wondering if it’s just switch failure or there is something more sinister going on?
Did over a hundred miles last Sunday, bike behaved perfectly, except the sprocket cover had about half a cup of oil in it which is now over the front lawn.  :(

Big thanks to Nurse Julie who sorted me out a replacement switch in mega quick time  :)

Bryanj:
Just a bad switch probably unless the oilpressure is incredibly high and that would give bigger leaks

McCabe-Thiele (Ted):
Oil switch leaks / failures seem quite common again I guess its connected with thin oils & additatives they use.

My neighbours 3 year old Kia 4x4 oil pressure switch failed with the light staying on most of the time!
Kia wanted him to pay for the diagnosic oil pressure check - so much for 7 year warranty - it turned out cheaper to get his local garage to fit a new switch.

taysidedragon:
I suspect that cheap Chinese switches are not made to the same quality standards of original Honda switches.

SteveW:
Put the new switch in yesterday and did about 5 miles, no leaks at all.

The old switch still worked normally, it was leaking around the brass insert that the wire to the bulb is screwed to.

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