Gen 2 drive oil reservoir audible alarm wiring

[fairshopperguy27]

Does anyone know if the DDIS wiring harness has wiring for the two wires on a Gen 2 drive oil reservoir? Any help would be appreciated!

 

[Fun Times]

You should be able to find a Tan with a Blue stripe wire on the engine. The wire should also been be found at the main wiring harness plug pin number 4 like seen on page 4E-3 which covers the DDIS system, http://www.boatfix.com/merc/Servmanl/13/13E4R2.PDF

 

[fairshopperguy27]

Ok, thanks I'll look for that tan/blue wire. There are two black wires coming from the bottom of the drive oil reservoir tank, would I just plug one wire into the tan/blue wire then splice the other into the ground wire in the harness?

 

[alldodge]

Ok, thanks I'll look for that tan/blue wire. There are two black wires coming from the bottom of the drive oil reservoir tank, would I just plug one wire into the tan/blue wire then splice the other into the ground wire in the harness?

The bottle is a switch, plug one into the tan/blue and there should be another black wire with the same type connector. The black is ground and makes no difference which one is plugged where

 

[Fun Times]

There are two black wires coming from the bottom of the drive oil reservoir tank, would I just plug one wire into the tan/blue wire then splice the other into the ground wire in the harness?

Typically the tan/blue wire harness has a connector in the general location of the oil reservoir mounting area along with a wire plug connection connected to a black wire for the grounding circuit....No splicing into a black ground wire should be needed unless you can't find a unused black wire connector that would just plug into the reservoir.

 

[fairshopperguy27]

This is an 89' 3.0 with DDIS so it doesn't have the two wires in the location of where the reservoir mounts. I think I will have to splice both the ground and the tan/blue wires into the harness. Hopefully they're not to far back on the harness.

 

[alldodge]

As in FT's link to the pdf file. Add a wire from one of the two sensors (oil pressure or temp) and run it to the bottle, then ground the other side.

 

[fairshopperguy27]

As in FT's link to the pdf file. Add a wire from one of the two sensors (oil pressure or temp) and run it to the bottle, then ground the other side.

Ok cool. Should I ground it to the block or splice it into a ground wire in the harness?

 

[alldodge]

Ok cool. Should I ground it to the block or splice it into a ground wire in the harness?

Ether will work but harness would be better, but only if it is a good connection (corrosion is limited)

 

[Fun Times]

This is an 89' 3.0 with DDIS so it doesn't have the two wires in the location of where the reservoir mounts. I think I will have to splice both the ground and the tan/blue wires into the harness. Hopefully they're not to far back on the harness.

Ah that makes sense as I was thinking 1991+ for the wire connectors are typically in place. 1989 didn't utilize the gear lube warning horn so you would have to splice in like AllDodge describes above. Sorry for any possible confusion.

Just so you are aware, your warning horn system if original to Mercruiser should have a 7 - 14 second delay before sounding the horn at key up. See page 2 for some info about it, http://www.remanual.com/file-manuals/9iJ/mercruiser-horn-warning-systems-ari-inc.html