crawdadric
Petty Officer 3rd Class
- Joined
- Nov 29, 2005
- Messages
- 88
1985 Sea Ray SRV 300 5.7L twin Mercruisers with alpha 1 out drives. Outdrive serial numbers are 0B796231 and F6910806.
When I bought the boat (used) the trim limit and sender wires were not hooked up for either drive. While I was replacing the drive rubber boots, I replaced the trim limit and sender switches. I hooked up the trim limit switches to the trim pump and adjusted the travel limit, everything worked great.
I hooked up the trim sender to the brown/white and black wires on the engine, the trim gauges did not work. When I looked at the back of the gauges, I found no sender wires hooked up to the sender "stud". I could not find the original brown/white wire coming up from the motor harness, so I ended up running a new wire from the gauge directly to the trim sender wire. I left the ground side of the trim sender switch hooked up to the black wire on the engine. I checked it with a meter and it read good (ground). The gauge would then peg past the limit specified on the gauge, like it was opposite the way it should read. When I adjusted the trim sender switch on the out drive it would peg full up or full out, no in between.
I looked on the Teleflex web site and it said if the gauge appears to operate opposite, the gauge might not match the sender. The trim sender was a standard Mercruiser part number for my drive (805320A2 Doug Russell web site). The original gauges are Teleflex Marine International P/N 53216P and Doug Russell list the gauge as Mercruiser P/N 79-99535A2.
I tried to find out how to match the gauge to the trim sender switch, but was unable to find anything on the Teleflex web site. Should I run a separate ground wire from the gauge to the trim sender switch? Both gauges act the same way. I did check the switches by hooking up a multi-meter between the two leads coming from the switch and the resistance varied uniformly while moving the out drive up and down. I forgot what the actual readings were.
Thank you in advance..
When I bought the boat (used) the trim limit and sender wires were not hooked up for either drive. While I was replacing the drive rubber boots, I replaced the trim limit and sender switches. I hooked up the trim limit switches to the trim pump and adjusted the travel limit, everything worked great.
I hooked up the trim sender to the brown/white and black wires on the engine, the trim gauges did not work. When I looked at the back of the gauges, I found no sender wires hooked up to the sender "stud". I could not find the original brown/white wire coming up from the motor harness, so I ended up running a new wire from the gauge directly to the trim sender wire. I left the ground side of the trim sender switch hooked up to the black wire on the engine. I checked it with a meter and it read good (ground). The gauge would then peg past the limit specified on the gauge, like it was opposite the way it should read. When I adjusted the trim sender switch on the out drive it would peg full up or full out, no in between.
I looked on the Teleflex web site and it said if the gauge appears to operate opposite, the gauge might not match the sender. The trim sender was a standard Mercruiser part number for my drive (805320A2 Doug Russell web site). The original gauges are Teleflex Marine International P/N 53216P and Doug Russell list the gauge as Mercruiser P/N 79-99535A2.
I tried to find out how to match the gauge to the trim sender switch, but was unable to find anything on the Teleflex web site. Should I run a separate ground wire from the gauge to the trim sender switch? Both gauges act the same way. I did check the switches by hooking up a multi-meter between the two leads coming from the switch and the resistance varied uniformly while moving the out drive up and down. I forgot what the actual readings were.
Thank you in advance..
