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post #1 of 26 (permalink) Old 22-05-2020, 12:36 Thread Starter
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Oil Pressure

No idea if this is the right place, but here I am.
Advice needed please.
Just moved the van and when I started it--- in big letters it said OIL PRESSURE TURN OFF ENGINE, but within seconds the sign had gone. I have checked the oil, lovely and clean and up to the mark so could this be a false alarm?

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post #2 of 26 (permalink) Old 22-05-2020, 13:31
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Quote:
Originally Posted by JanHank View Post
No idea if this is the right place, but here I am.
Advice needed please.
Just moved the van and when I started it--- in big letters it said OIL PRESSURE TURN OFF ENGINE, but within seconds the sign had gone. I have checked the oil, lovely and clean and up to the mark so could this be a false alarm?

Jan


A couple of years ago we were driving along the Mosel(Moselle) and the oil pressure light came on. Like you I checked the oil level - OK. My assessment was a faulty pressure transmitter rather than the pump.


However, I know that running an engine without oil lubrication can be disastrous, so took the cautious approach and called ADAC. The guy arrived and came to same diagnosis, so he said he would follow me to a garage.


Sensor was changed and all OK.


I would suspect that the sensor/transmitter is starting to play up, so needs checking. The solution may just be to take it out and blow it through with a high-pressure air line to check for any detritus in there. Or a new sensor.


Anyway if the light has gone out it is probably safe to drive to a garage. But if the light comes again on the journey then STOP and turn off engine and call Recovery.


We had a fluctuating oil pressure guage on a Bristol Freighter climbing out of Jersey. As it happened the Captain had done an engineering apprenticeship at DeHavilland. He immediately shut down the engine for the same reason(did not wait to check with me that it was correct engine - naughty). It was the transmitter.



Hope this helps, but wait for more informed replies before taking any action.


Geoff
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post #3 of 26 (permalink) Old 22-05-2020, 13:36
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In an engine not in use for some time the oil may slowly drain towards the sump. When you start it it may take a few moments to pump it back up again. It's not something to panic about but ..

The few moments after starting are the moments when most wear occurs. The longer the gap between the times when the engine is running the longer (slightly) it takes for the oil to be pumped up and normal operating pressure to be achieved.

Best run it regularly, say at least once a week I'd suggest. When you do though it's best to drive it at least 5 or 10 miles I'd say. Just starting it and letting it idle is not good and running it at idle for a few minutes is likely to do more harm than good.

I'd drive it every month or 6 weeks, but that won't keep the batteries charged, you'll need hook up for that.
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post #4 of 26 (permalink) Old 22-05-2020, 13:56
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Broadly in line with previous replies - if it only happens the once (and after a long period of not being started), then I wouldn’t worry about it too much if (as you have already checked) the oil level is good.
If it happens again, worth getting it checked for (most likely) a faulty sensor.


Regards,
John
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post #5 of 26 (permalink) Old 22-05-2020, 13:58 Thread Starter
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I do take it out regularly for a 50 or so km run, the last time was 2 weeks ago on the 9th. I intended having a trip out today after I had done the radical weed killing on the drive, almost completed the finishing touches with the sprayer on the tank and the connection broke. I have been looking for something to blank off the hand spray to empty the tank with the two main sprayers at the back, I can´t find anything so will have to just tip the rest at the bottom of the garden.
Uhu won´t stick the two bite together Not that I tried.
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post #6 of 26 (permalink) Old 22-05-2020, 14:16
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Manufacturers tend to recommend thinner and thinner oils now as mechanical tolerances get better and multi viscosity helps cold starts and hot running.
But as said before when not run for a few weeks the oils have all drained down and take a second to pump up again. The oil pressure switch/light might just be triggered at that point and never again.

Only worry if it comes on while driving Jan.

Ray.
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post #7 of 26 (permalink) Old 22-05-2020, 14:19
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I think those bends are standard Hozelock watering system 90 angles. The black plastic clamp is easily removed and connections replaced. The screw in fitting is also standard connection AFAIK.
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post #8 of 26 (permalink) Old 22-05-2020, 14:42 Thread Starter
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Quote:
Originally Posted by Penquin View Post
I think those bends are standard Hozelock watering system 90 angles. The black plastic clamp is easily removed and connections replaced. The screw in fitting is also standard connection AFAIK.
I´ll take it to the garden shop where it was bought when I feel it´s OK for me to go in shops. I won´t need it anymore for a while yet I don´t think, but thanks Dave.

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post #9 of 26 (permalink) Old 22-05-2020, 14:55
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FWIW.
On most expert forums it is suggested that vehicles are not started regularly unless for a reasonable run......ie. Every week or so.
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post #10 of 26 (permalink) Old 22-05-2020, 14:57 Thread Starter
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Quote:
Originally Posted by EJB View Post
FWIW.
On most expert forums it is suggested that vehicles are not started regularly unless for a reasonable run.
As I said Ted I do take it for reasonable runs about every 2 weeks, well I think 50 km. is reasonable innit?
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