I've got an old (1975) L175 that still runs great, but the other day the oil pressure light came on and stays on at all RPM. Changed oil and filter and checked connection to what I think is the oil pressure sensor: one wire to location on rear left of engine block. Is the sensor a ground that opens when oil pressure is high enough, thus putting the light out? Where can you find a new sensor? Any hints about unscrewing the sensor...there is little room to get a tool on it. Thanks.
Oil pressure light L175
- Thread starter Big Bob
- Start date
You've got it right. Switch is normally closed to ground, opens when there's oil pressure. You can order a new sensor from Messicks or your dealer. You can also probably find a generic one if you want. The fitting is 1/8 BSPT. My exhaust manifold was off when I removed mine so I'm no help there but it didn't require much force to remove as I recall.
It doesn't take much force to break the old one loose; once it was loosened mine screwed out by hand. The new one went in the same way and I just snugged it up with whatever tool I used.
I can't remember, so it had to be a common tool and easily done. If it had been a Royal PITA, I know I could quote chapter and verse on what ti took to get the job done.
Seems like the switch was under $25.00 from the Kubota dealer, too.
Robert
I can't remember, so it had to be a common tool and easily done. If it had been a Royal PITA, I know I could quote chapter and verse on what ti took to get the job done.
Seems like the switch was under $25.00 from the Kubota dealer, too.
Robert
ageitz
New member
Equipment
L1511dt with a bulldog loader on front also have a slasher and a tiller.
bob,
i have an l1511dt and have the same issue with my oil light. have you fixed yours and if so was the sensor faulty and in need of replacing or was it something else
i have an l1511dt and have the same issue with my oil light. have you fixed yours and if so was the sensor faulty and in need of replacing or was it something else
It's pretty easy to check if the switch is bad. On the left side of the engine towards the back of the block you'll find the pressure switch with one wire sticking out. Put a multimeter in continuity mode and unplug the lead coming out of the switch. With the engine off you should have continuity between the engine block\frame\negative battery terminal(pretty much any exposed metal will do) and the terminal on the switch. Start it up and if you still have continuity the switch is bad or you've got no oil pressure. Replace the switch and try again or install a pressure gauge and see if you've actually got any pressure.
Hopefully it's just the switch. Really easy to check.
However, if it's not, it could be the infamous cam plug. I've got the L175's brother (L245) and had the same issue. It came down to the cam plug. You can read through my thread and see what's involved. The fix was fairly simple but it took considerable disassembly/reassembly time.
However, if it's not, it could be the infamous cam plug. I've got the L175's brother (L245) and had the same issue. It came down to the cam plug. You can read through my thread and see what's involved. The fix was fairly simple but it took considerable disassembly/reassembly time.