150 PROV Yamaha oil tranfer problem

[MGA]

Recently had the engine off the boat and put back on. On the first trip out the oil alarm came on, I tranfered oil using the manaul over ride switch (so I know the pump works and the filter is not cloged). So were do I go from here?
Is it the sensor or the black box the tells the pump to pump when the oil resevior is down a little. I have checked the wires they look OK. I don't know alot about how the senor works, I can get a reading for the alarm, by manually sliding the float down. I feel I should be able to get a reading off the white wire when the float is just down a bit. Any suggestions out there?
MGA

 

[edgutgesell]

Re: 150 PROV Yamaha oil tranfer problem

Read the article "Slippery Solution" at this website!!

http://www.bassandwalleyeboats.com/output.cfm?id=942859

 

[Ray Neudecker]

Re: 150 PROV Yamaha oil tranfer problem

Great article with lots of trouble shooting info. Pay special attention to the wiring since the motor was removed right before the problem began.

 

[MGA]

Re: 150 PROV Yamaha oil tranfer problem

Thanks for all the direction, The problem was a corroided wire from the large oil tank on the boat, the was caused by a nic in the insulation in the manufactured molded rubber which after twenty plus years and some jiggling durring un and re - install broke the conductor. Under normal circumstances, Not only does this send a low oil signal but disables the automatic transfer of the last 1 1/2 quarts of oil in the reservior, which you can pump to the engine using the emergecy overrride switch. A new sensor is back ordered from Japan, I temporly by-paased that sensor. Thanks again to everyones input.