2018 Scrambler Oil Pressure Light Stays On But Engine Is Fine (help)

Hallo Gents,

OK, so I bought my very first Triumph it is a 2018 Street Scrambler 2nd hand, with believe it or not 9 miles on the clock.

1. My low oil pressure light stays on when the bike is running. Engine sounds 100% and is running smooth. Took it to Triumph they claim its a faulty dash, but I disagree. The dash was working 100% before.

2. I disconnected the oil switch while the bike was running and the light stayed on. On some forums I saw that a blocked oil filter / faulty filter might be the problem, but with the bike only having 9 miles on when I bought it and still have the original triumph filter in its highly likely to be the problem.

3. If someone have any information or tips that I can try or test out to find the problem...it will be much appreciated!

Cheers

 

Why you messing with it?
The warranty is transferable as I've done mine a few months back and Triumph resolved an issue for me very quickly and competently.

 

The problem is the bike had a small front end crash, insurance deregistered the bike. Thus i can not transfer the warranty. I am based in South Africa.

 

In that case if it has no warranty following a front end bump then I suggest you start by dropping the oil and changing the filter then work from there, 9 miles don't matter too much a front end bump does.
Gotta start somewhere and you've sort of picked your own starting point go for it,

PS If you disconnected the oil switch then no light should show IMHO - if you ground the wire it should light, faulty dash could be correct don't dismiss so easily.
if pushed for cash you could check condition of oil if super clean and not contaminated at all and having only done 9 mile you could re-use until you check out this issue further, as for filter just change that as you wont be able to check it,

 

Do a multimeter check of the cold and hot oil sensor to confirm your current findings. Ideally plumb in a gauge to do a proper pressure test. Especially with that mileage why risk spoiling a mint engine.
Assuming that confirms engine all good then dash it is unless it's a wiring fault.....

 

To enable us to help and guide you better an explanation of what you mean by "a small front end crash" and what it entails would help?

Small means significantly different to one person than the next. Have you got a wiring diagram?

 

How long have you run/used the bike with this problem present ? how many miles on it now ?

 

You say the engine is fine? Engine could have been left running after said crash resulting in partial oil starvation?
You really need to get the oil pressure checked using a gauge that screws into oil pressure switch port, otherwise you are just clutching at straws. If pressure is within limits then at least you know you have either a switch or dash issue.

 

This was the bike after the crash, I replaced the Radiator, rectifier and Forks

 

After I send it in to Triumph workshop, they said I can ride the bike so currently its on about 50 miles, but decided that Id rather sort the problem before any more miles. Just not comfortable with the light always on.

 

After I send it in to Triumph workshop, they said I can ride the bike so currently its on about 50 miles, but decided that Id rather sort the problem before any more miles. Just not comfortable with the light always on.

 

Thanks for all the response guys, let the investigation continue. BTW this is the bike currently

 

I wouldn’t call that a “small” front end crash, the back wheel is damn near in front of the front one!
It would kind of explain the dash issue tho. Good luck with it.

 

Although by 50 mls it should have shown signs of oil starvation it would pay to check ...did the garage that said its OK to ride check with a pressure gauge?

 

They ran a full diagnostics on the bike, came out with zero errors. Not sure if they used a gauge. Ordered a oil pressure gauge kit online, will be delivered on Thursday.

 

I always fit a pressure gauge rather than a warning light to most of my bikes or cars...at least you know whats going on that way.

 

Interesting problem you have there. After seeing the photo of the front end damage, I;m betting on the faulty dash for the culprit. Especially after you state that the oil light is still on when unplugged. Sounds like a damaged sensor and/or wiring. Keep us informed, please. Good luck.

 

Having looked at the as crashed picture, what state is the wiring loom in?
A trapped or cut wire shorting to earth could be the culprit. Are there any mashed areas of the loom?

 

OK Gents, I've connected a pressure gauge to the motor. When started with the oil still cold, it was idling at 40psi/1150k. But as the motor and oil heated up the pressure dropped to 15psi...this is normal yes? (See photo). When I rev it up to around 2500k the oil pressure return to 40psi.

I've gone through the wiring harness and cant find any faults. This leaves me with a Faulty dash...got a mate with the same bike will swap out the dash and see if the light goes off this coming weekend. Keep you posted

 

Although not familiar with that particular motor the oil pressure sounds OK it does sound like its a pinched wire shorting somewhere...have you got a multimeter that you can test continuity of the pressure light circuit?