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  #1  
Old 5th September 2018, 11:50 AM
sean o caoimh sean o caoimh is offline
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Biker.ie Member No. 36847 from Cork City
86 posts since Jan 2017
Motorbike: 2013 triumph tiger 800
Modifications: none( yet)
Default Low oil pressure light

Hi all.
Having an intermittent low oil pressure light coming on at idle. It seems to happen after the engine heats up.
Dosent happen all the time, but it's a bit disconcerting when stopped at a Traffic light and the light comes on.
If I increase the RPM very you slightly the light goes out.
Anyone come across this problem before ?
Regards
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  #2  
Old 5th September 2018, 11:54 AM
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ascalon ascalon is offline
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Default Re: Low oil pressure light

Have you checked your oil level recently? Slightly low volume in the system could lead to that kind of behaviour.
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  #3  
Old 5th September 2018, 11:55 AM
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Gixxer Gixxer is offline
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Default Re: Low oil pressure light

Either the pressure switch is faulty, or... wait for it... you have low oil pressure.
Either way, you shouldn't be riding the bike until you get it checked out. It could end up costly and/or dangerous.
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  #4  
Old 5th September 2018, 11:55 AM
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PJ PJ is offline
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Motorbike: SS600 R6 #36 LWSS ZXR400 #36 CR125
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Default Re: Low oil pressure light

1. Check oil level. (I presume you've done this)
2. Possible faulty oil pressure switch.
3. Engine down on compression.
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  #5  
Old 5th September 2018, 12:03 PM
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Olaf Maxwell Olaf Maxwell is offline
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1,512 posts since May 2011
Motorbike: BMW K100LT92 K100RT84
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Default Re: Low oil pressure light

Level is critical. Also check on oil type. What oil spec are you using? Using say 5W instead of a specified 10/15/20W can do this when engine gets very hot as in traffic. Check oil type and switch before getting worried about anything else.
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  #6  
Old 5th September 2018, 12:04 PM
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allsorts&oddjobs allsorts&oddjobs is online now
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Default Re: Low oil pressure light

Originally Posted by Gixxer
Either the pressure switch is faulty, or... wait for it... you have low oil pressure.
Either way, you shouldn't be riding the bike until you get it checked out. It could end up costly and/or dangerous.
This, get it checked with a pressure guage, the fact that it happens when the oil is hot ( and therefore thin ) woulld indicate a low pressure problem.
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  #7  
Old 5th September 2018, 02:47 PM
DavyH DavyH is offline
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Default Re: Low oil pressure light

Could be the relief valve either, or a worn pump!!!

Last edited by DavyH; 5th September 2018 at 02:50 PM.
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  #8  
Old 5th September 2018, 02:49 PM
DavyH DavyH is offline
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Default Re: Low oil pressure light

Originally Posted by PJ
1. Check oil level. (I presume you've done this)
2. Possible faulty oil pressure switch.
3. Engine down on compression.
Wouldn't really cause oil pressure issues
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  #9  
Old 5th September 2018, 06:22 PM
sean o caoimh sean o caoimh is offline
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Biker.ie Member No. 36847 from Cork City
86 posts since Jan 2017
Motorbike: 2013 triumph tiger 800
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Default Re: Low oil pressure light

Ya ! So far ive checked the oil level and changed it to 10w 50, new oil pressure sensor, dropped the sump and cleaned the screen, pressure relief valve, return pipe and all o rings.I'm going to flush out the coolant and heat exchanger and replace the oil filter with a triumph one!
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  #10  
Old 5th September 2018, 07:16 PM
joe williams joe williams is offline
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Default Re: Low oil pressure light

Originally Posted by sean o caoimh
Ya ! So far ive checked the oil level and changed it to 10w 50, new oil pressure sensor, dropped the sump and cleaned the screen, pressure relief valve, return pipe and all o rings.I'm going to flush out the coolant and heat exchanger and replace the oil filter with a triumph one!
Could be wrong type oil filter . If that fails check your wiring from pressure switch.
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  #11  
Old 5th September 2018, 08:05 PM
DavyH DavyH is offline
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Default Re: Low oil pressure light

The simplest and best way to isolate the issue is to hook up an oil pressure tester and see if it's within spec. If it is you know you have an electrical fault, if it's not you know it's mechanical.
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  #12  
Old 5th September 2018, 08:37 PM
sean o caoimh sean o caoimh is offline
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Biker.ie Member No. 36847 from Cork City
86 posts since Jan 2017
Motorbike: 2013 triumph tiger 800
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Default Re: Low oil pressure light

And if as DavyH has suggested, if its an electrical fault ,
No damage to the engine will accur!
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  #13  
Old 5th September 2018, 08:49 PM
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kawasixxer kawasixxer is offline
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Biker.ie Member No. 13834 from offaly, midlands
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Default Re: Low oil pressure light

Check the wire from the pressure switch, I had this problem before, it could be rubbing off something,
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  #14  
Old 5th September 2018, 10:19 PM
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dukeNblade dukeNblade is offline
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Default Re: Low oil pressure light

Much miles on it?
Worn main bearings or bigend bearings cause low oil pressure.
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  #15  
Old 5th September 2018, 11:05 PM
DavyH DavyH is offline
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Default Re: Low oil pressure light

If its mechanical there is every chance of damage but you can be ok if you catch it early. If its an electrical issue there will be no harm done whatsoever.

The thing you actually need to know at this point is if there is sufficient oil pressure, it sounds like you have tried most things with the exception of the sensor circuit wiring, an oil pressure test and you didn't mention checking your oil for debris. Aside from those, if the issue happened to show not long after an oil and filter change, you should consider bleeding out or just replacing the filter, it's not unheard of for them to be faulty, even genuine items!!! Good luck with it and keep us posted
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  #16  
Old 5th September 2018, 11:17 PM
DavyH DavyH is offline
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Default Re: Low oil pressure light

Out of curiousity what rpm is it idling at when this happens?
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  #17  
Old 5th September 2018, 11:29 PM
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Blanka Blanka is offline
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Default Re: Low oil pressure light

What would the correct testing procedure be on a circuit that's just a switch to ground? The only thing I can think of is when the light comes on test for continuity across the switch and if there's no continuity but the light is on then it's grounding though a fault in the wiring
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  #18  
Old 5th September 2018, 11:43 PM
sean o caoimh sean o caoimh is offline
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Biker.ie Member No. 36847 from Cork City
86 posts since Jan 2017
Motorbike: 2013 triumph tiger 800
Modifications: none( yet)
Default Re: Low oil pressure light

Lots of good feedback there lads , I have the bike just over 12 months, the problem is so intermittent it possible was in the bike when I bought it. I have done the valve shims and had the starter motor overhauled. The rpm spec for the 800 tiger is 1100 rpm, it shows 60.000 klm on the clock
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  #19  
Old 5th September 2018, 11:45 PM
DavyH DavyH is offline
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Default Re: Low oil pressure light

Originally Posted by Blanka
What would the correct testing procedure be on a circuit that's just a switch to ground? The only thing I can think of is when the light comes on test for continuity across the switch and if there's no continuity but the light is on then it's grounding though a fault in the wiring
You'll have the switch ground and power side to, so thats likely coming from the ECU to the instrument cluster. If have to look at a wiring diagram but it could be an issue on either side of that.... And remember too you can still have continuity even when there a high resistance
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  #20  
Old 6th September 2018, 12:09 AM
DavyH DavyH is offline
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Default Re: Low oil pressure light

Originally Posted by sean o caoimh
Lots of good feedback there lads , I have the bike just over 12 months, the problem is so intermittent it possible was in the bike when I bought it. I have done the valve shims and had the starter motor overhauled. The rpm spec for the 800 tiger is 1100 rpm, it shows 60.000 klm on the clock
I know it's spec'd at that but does it happen to drop off in rpm when you have this problem, could be an idle speed control issue if thats the case, just thinking is all
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