B8200 oil light flickers at idle?

MAArcher

Active member

Equipment
Kubota B8200
Oct 6, 2022
116
47
28
New England
even though I have plenty of fresh oil, I just noticed that the oil light is flickering, only at idle. Any ideas on what's up how to troubleshoot? Thanks!
 

Caden

Active member

Equipment
1979 B7100
Apr 16, 2026
116
53
28
Virginia
At cold idle oil pressure should be through the roof. At hot idle it will be low pressure. If your oil pump is worn or pickup screen clogged hot idle could definitely be bordering on no oil pressure.

I would get a generic oil pressure gauge from the auto store an get a real reading first. Not really sure how accurate the light is. This will tell you if you have a real problem or if the sending unit may be bad.
 
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North Idaho Wolfman

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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
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10,701
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Sandpoint, ID
Most likely a bad sending unit.
They are cheap, replace that first.
 
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TheOldHokie

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windyridgefarm.us
even though I have plenty of fresh oil, I just noticed that the oil light is flickering, only at idle. Any ideas on what's up how to troubleshoot? Thanks!
Measure oil pressure. Whenever I see this on a machine that old I immediatly think engine bearings.

Dan
 
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MAArcher

Active member

Equipment
Kubota B8200
Oct 6, 2022
116
47
28
New England
Measure oil pressure. Whenever I see this on a machine that old I immediatly think engine bearings.

Dan
She's old, but I think she only has around 800 hours on her. Hopefully its not serious. I'm searching on eBay and amazon to see if I can find an actual gauge to install. If I can't find one I'll grab an pressure gauge from Harbor Freight and see what it is.
 

North Idaho Wolfman

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Staff member
Lifetime Member

Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
35,537
10,701
113
Sandpoint, ID
The sending unit is 1/8 BSPT most oil pressure gauges will come with the adapter for that thread.
 
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