Hoping someone can help me please.
I recently bough a Takeuchi TB016 1.5 ton excavator - my first excavator. It's a 2003 with 2800 hours. It has a Yanmar engine.
When I got it it ran fine and I played with it for about 30 minutes each on a couple of days with no issues. I then (and not sure if this is relevant) power washed it in preparation for servicing it.
I then found the oil pressure light and warning beeper coming on at idle after which it would shut down (as I understand they are supposed to). I assumed that it could be just a dirty oil filter as I had no idea when it was last serviced (although the previous owner had told me within the last 12 months.)
So, I changed the oil and filter (together with both fuel filters and air filter) but the problem persists.
I read that some Takeuchi models have the water pressure(?)/temperature sensor wired to the same warning light/buzzer as the oil pressure. However if I disconnect the water sensor's wire the problem persists but if I disconnect the oil sensor wire the lights and buzzer go off.
I cleaned up the connector to the oil pressure sender as this looked a bit corroded but this made no difference.
Today I fitted a new oil pressure sender but again no fix.
I can start the motor ok, and the light/buzzer only come on after 5 minutes or so, as it starts to warm up. Switching off the ignition seems to re-set everything and I can re-start for another five minutes. I first thought that it was only on idle that the warnings activated but today it also did it at half revs.
It was fine a week ago so I can't imagine that an engine would suddenly develop 'real' oil pressure issues, although I haven't tried fitting a gauge to check.
The engine runs fine when it is going, and there is no smoke other than immediately on cold start up
If it were a bad or worn-through cable shorting on the chassis somewhere, (as I have also read as a possible cause) or somehow related to me power washing the engine bay then surely the short would be present all the time, not just after five minutes?
Any ideas?
Many thanks
Rob
I recently bough a Takeuchi TB016 1.5 ton excavator - my first excavator. It's a 2003 with 2800 hours. It has a Yanmar engine.
When I got it it ran fine and I played with it for about 30 minutes each on a couple of days with no issues. I then (and not sure if this is relevant) power washed it in preparation for servicing it.
I then found the oil pressure light and warning beeper coming on at idle after which it would shut down (as I understand they are supposed to). I assumed that it could be just a dirty oil filter as I had no idea when it was last serviced (although the previous owner had told me within the last 12 months.)
So, I changed the oil and filter (together with both fuel filters and air filter) but the problem persists.
I read that some Takeuchi models have the water pressure(?)/temperature sensor wired to the same warning light/buzzer as the oil pressure. However if I disconnect the water sensor's wire the problem persists but if I disconnect the oil sensor wire the lights and buzzer go off.
I cleaned up the connector to the oil pressure sender as this looked a bit corroded but this made no difference.
Today I fitted a new oil pressure sender but again no fix.
I can start the motor ok, and the light/buzzer only come on after 5 minutes or so, as it starts to warm up. Switching off the ignition seems to re-set everything and I can re-start for another five minutes. I first thought that it was only on idle that the warnings activated but today it also did it at half revs.
It was fine a week ago so I can't imagine that an engine would suddenly develop 'real' oil pressure issues, although I haven't tried fitting a gauge to check.
The engine runs fine when it is going, and there is no smoke other than immediately on cold start up
If it were a bad or worn-through cable shorting on the chassis somewhere, (as I have also read as a possible cause) or somehow related to me power washing the engine bay then surely the short would be present all the time, not just after five minutes?
Any ideas?
Many thanks
Rob
Takeuchi TB016 oil pressure.
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