Nason switches on DD 6v92

Reelsly

New Member
Aug 7, 2012
30
Space Coast, Florida
Boat Info
1998 Sea Ray 550 DB
1957 Reinell Jetabout
2002 25' Godfrey Sanpan
Engines
1998 DD 6V92 DDEC
1957 Johnson 35HP
2002 Yamaha F80
I have 5 of these Nason low pressure switches (2 port and 3 starboard) on my DD 6V92 625hp motors. They are tied into the fuel lines above the secondary fuel filter. Here is my problem. A mechanic was working on the boat and concluded that the switches were bad and needed replacing. He removed two of them and capped them off. Told me to order replacements and use the port motor for the wiring reference. Sounds easy. This mechanic is 90 miles away and doesn't remember which wire goes where. The problem is that the two existing switches that are in the same position with the same colored wires are wired completely opposite. Also, the Port motor only has two switches while the starboard has three. I don't have a correct point of reference. Can someone with DD 6V92 625hp that has these switches, please take a few photos of the wiring? Both Port and Starboard. Thanks in advance.

Nason switch.jpg
 
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