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oil pressure light

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mixdrive1 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mixdrive1 Quote  Post ReplyReply Direct Link To This Post Topic: oil pressure light
    Posted: 19 Feb 2018 at 18:28
Hi all, after a winter stood up i came to start my 2003 mille for the first time, oil pressure light was on during ignition but then stayed on during running, turned bike off and checked for leaks but nothing so started again. oil light slowly dimmed as engine got warm, plenty of oil in window after fans went out for the second time and oil light went out. Then i start blipping, low in the revs to start then progressively higher, the higher i rev it the brighter the oil pressure sensor gets.

Any ideas guys as if it were a faulty pump i'd expect it to be the other way round when revving???
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Post Options Post Options   Thanks (0) Thanks(0)   Quote legend88 Quote  Post ReplyReply Direct Link To This Post Posted: 19 Feb 2018 at 19:55
Maybe a blockage somewhere in the oil system. Pickup strainer possibly?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Diablo Quote  Post ReplyReply Direct Link To This Post Posted: 19 Feb 2018 at 19:55
Possibly the oil pressure sensor.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jollygiant Quote  Post ReplyReply Direct Link To This Post Posted: 19 Feb 2018 at 20:15
A new sensor is only about £10 for an Aprilia one.
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mixdrive1 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mixdrive1 Quote  Post ReplyReply Direct Link To This Post Posted: 19 Feb 2018 at 22:07
Think i will try pressure sensor first, strainer was checked last year and was clear and bike was serviced every 200 miles so oil is all good many thanks guys
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Stevex Quote  Post ReplyReply Direct Link To This Post Posted: 19 Feb 2018 at 22:12
If you ran it long enough for the fans to go out twice I hope it's the pressure sensor or the engine's probably toast.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote redratbike Quote  Post ReplyReply Direct Link To This Post Posted: 19 Feb 2018 at 22:21
Oil pressure relief valve could be jammed open ...quite a common issue


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Post Options Post Options   Thanks (0) Thanks(0)   Quote Diablo Quote  Post ReplyReply Direct Link To This Post Posted: 19 Feb 2018 at 23:30
Originally posted by redratbike redratbike wrote:

Oil pressure relief valve could be jammed open ...quite a common issue


That would make sense Mark, if stuck open, it would reduce the oil pressure.

Trouble is, you don't really want to run the motor until you know.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Jollygiant Quote  Post ReplyReply Direct Link To This Post Posted: 20 Feb 2018 at 07:20
I had something similar on mine. 

I was doing a track even and the oil light started too flicker and would come on and go off at different revs, the engine sounded fine and pulled as normal. 

I changed the sensor  and it was fine.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mixdrive1 Quote  Post ReplyReply Direct Link To This Post Posted: 20 Feb 2018 at 22:22
Originally posted by Jollygiant Jollygiant wrote:

I had something similar on mine. 

I was doing a track even and the oil light started too flicker and would come on and go off at different revs, the engine sounded fine and pulled as normal. 

I changed the sensor  and it was fine.

 This is what i'm thinking too mate, i've ordered a couple of new censors as they are really cheap and also prone to leaking. will change it and fire it up again and let every1 know the outcome
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Prsv Quote  Post ReplyReply Direct Link To This Post Posted: 21 Feb 2018 at 07:53
Have you got a small air line gauge you could pop in to make sure the pressure is in speck.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mixdrive1 Quote  Post ReplyReply Direct Link To This Post Posted: 25 Feb 2018 at 17:57
I've just popped in a new sensor and connected it up and light doesn't come on at all even when ignition on but engine not running, when i plug the old 1 back in the light comes back on with ignition on. am i going mad, i'm sure it's sposed to be on with ignition on then go out when engine running???
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Stevex Quote  Post ReplyReply Direct Link To This Post Posted: 25 Feb 2018 at 19:32
So...you know the bike's wiring is OK, I'd put money on a dodgy pressure switch.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mixdrive1 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Feb 2018 at 06:17
Originally posted by Stevex Stevex wrote:

So...you know the bike's wiring is OK, I'd put money on a dodgy pressure switch.

You the man Steve, very strangely i removed the pressure switch out of our other race bike to test which didn't light up at all, that was what confused me but then yesterday my brand new ones turned up from Cyprus. Screwed one in and working perfectly thank goodness Big smile
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