Oil coming out of oil pressure sending unit

[polar21]

So I took the boat out today to adjust the newly installed flax packing and saw oil coming out of the oil sending unit (5.7L Indmar). Has anyone had this happen before? The motor is a '99. Also, does anyone know what part number a replacement sending unit is in case I have to get a new one?

Thanks,
DJ

[DOCDRS]

where is the oil sending unit?

[Razzman]

If oil is coming from the unit then it's bad and needs to be replaced. Seen it happen on auto blocks many times. Call the dealer as i doubt anyone here will have the number.

[polar21]

Doc,

The oil sending unit on my engine (Indmar 5.7L) is located right beside the distributor. If you are looking at the back of the engine, the unit is located to the left of the distributor on top of the block.

Thanks Razzman. I guess I will have to go to the dealer or see if the local auto parts store has one.

[Engine Nut]

Doc,

The oil sending unit on my engine (Indmar 5.7L) is located right beside the distributor. If you are looking at the back of the engine, the unit is located to the left of the distributor on top of the block.

Thanks Razzman. I guess I will have to go to the dealer or see if the local auto parts store has one.

I believe the sender next to the distributor is actually the fuel pump safety switch. The oil pressure sender is generally right above the oil filter. How many wires are attached to the component next to the distributor? If there are three ...one orange, one red and one purple that component is the fuel pump safety switch. The P/N for the fuel pump safety switch kit is S496007. If the component only has one blue wire, it is the oil pressure sender P/N S645002.

[DOCDRS]

thanks Larry, that is what i thought
doug

[polar21]

Now everyone has me confused. The sending unit did have 3 wires coming out of it (red, orange, purple). It was definitely the oil pressure sender because oil was coming out of it. I took the part to O'Reily's who matched it up with a '72 GM 350 sending unit. I put some gasket material on the threads, put it on, hoooked the wires back up, and cranked the motor. No oil coming out and appears that everything is working. If I get to the boat sometime this week I will take a picture and post it back up here. Oh, the part cost me $5.

[DOCDRS]

this is getting interesting now. i'm sure the pic will clear everything up.....its worth a thousand words, which we have not quite achieved in this thread yet...ha ha

thanks for keeping us up to date polar

[polar21]

Ok, here are some pics:

[polar21]

The 3rd pic is a good pic of the sending unit where the oil was coming out at. As you can see in the 1st pic, it is located right beside the distributor cap. However, after changing the oil the other night, I noticed another oil sending unit located by the oil filter. So....I am assuming that the unit I replaced is some sort of kill switch where if oil pressure gets low it will cut the motor? Does this sound correct?