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Oil pressure light

  • Thread starter Thread starter hakim5857
  • Start date Start date
H

hakim5857

Guest
Hi, i have an issue with my oil pressure light where the light was on when below than 1500rpm. It never happen before, could the possibility as below;

A. Oil pressure switch faulty.
B. Oil pump faulty.
C. Could be my rpm meter faulty not reading the rpm properly as before the internal spring faulty/snap, modified it & used it back.
D. or the idiot light become idiot :mad:
 
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The oil pressure switch is a very simple spring loaded plunger; when oil flows out of the pump it pushed the plunger out of the way which disrupts the ground and turns off the light. It's an extremely reliable device so I doubt anything is wrong. Likewise, the oil pump is almost foolproof too. If your bike has an aftermarket oil cooler, the pick-up adapter could be bypassing some flow away from the switch. Not sure what to suggest other than make sure you have a high quality motorcycle or diesel engine oil of the correct weight range.
 
Nessism said:
The oil pressure switch is a very simple spring loaded plunger; when oil flows out of the pump it pushed the plunger out of the way which disrupts the ground and turns off the light. It's an extremely reliable device so I doubt anything is wrong. Likewise, the oil pump is almost foolproof too. If your bike has an aftermarket oil cooler, the pick-up adapter could be bypassing some flow away from the switch. Not sure what to suggest other than make sure you have a high quality motorcycle or diesel engine oil of the correct weight range.
Click to expand...

Thanks Nessism, i didn't install oil cooler. Maybe the diesel engine oil i use like you said, i use 15-40~mobil delvac. I've cross check before use & its similar with shell rotella. I will try another diesel engine oil in next servicing. See how it goes...
P/S: Shell Rotella not available @ Malaysia but have RimulaX 15-40.
 
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The oil you are using is fine. There is something else going on.
 
koolaid_kid said:
The oil you are using is fine. There is something else going on.
Click to expand...

koolaid_kid ~ I have strong feeling that oil pressure switch &/or the rpm meter fooling me as i tempered it to fix the broken spring. I try to check this two thing first & will post the update.
 
hakim5857 said:
.
.
C. Could be my rpm meter faulty not reading the rpm properly as before the internal spring faulty/snap, modified it & used it back.
.
Click to expand...
Not understanding your concern about the tachometer relative to the oil pressure light.
Even at a very slow idle the oil light should go out. SOmetimes oil light will go out just cranking on the starter motor.
 
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Redman said:
Not understanding your concern about the tachometer relative to the oil pressure light.
Even at a very slow idle the oil light should go out. SOmetimes oil light will go out just cranking on the starter motor.
Click to expand...

That mean i need to check my oil presure switch, as last time i had play with it by squeeze several time before install it back.
 
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