PDA

View Full Version : Merc Questions (help)


PhastBoat
03-08-2002, 04:04 PM
What is this wire for? Where does it plug into?
It comes from somewhere near the trim/tilt cylinder.
PhastBoat
03-08-2002, 04:06 PM
What about this wire coming off the trim pump?
PhastBoat
03-08-2002, 04:08 PM
Where do you hook the Tachometer wire to?
Greg Moss
03-08-2002, 04:15 PM
First picture wire goes to a send for a trim gauge. second picture wires are for a trim limit switch. third hook the tach up to the rectifier with a yellow wire on it's post. should be a gray wire in the wire harness for the tach. Greg
us1
03-08-2002, 04:20 PM
From the picture the wiring looks like the trim limit system. The gray wire on the rectifier is the tach wire.
PhastBoat
03-08-2002, 04:20 PM
Thanks for your help. Couple of questions still. Do i need a trim limit switch? Do i already have one? Where is the rectifier?
Please excuse my ignorance.
us1
03-08-2002, 04:21 PM
Sorry Greg you were posting the same time I was.
Greg Moss
03-08-2002, 04:24 PM
No you don't need a trim limit switch it is for the controll box's that have a trailer button. More of a mercruiser left over thing than anything useful. The retifier is the square thing next to the starter with three posts on it. There should be a gray wire hooked up to it and 2 yellows then there will be a red wire on the positive post. The gray wire is the tach wire.
PhastBoat
03-08-2002, 04:28 PM
:confused:
Greg Moss
03-08-2002, 04:31 PM
the gray wire is the tach drive
PhastBoat
03-08-2002, 04:32 PM
You Guys A Great- Really Know your Stuff!
Thanks again
us1
03-08-2002, 04:57 PM
You have to love the pictures with the arrows, that makes it so easy to explain.
Greg
03-08-2002, 09:35 PM
Phastboat,
What's the deal with your horn? It looks as though it's been welded back on?


Greg C :eek: :o :confused: :D
us1
03-08-2002, 10:06 PM
Some of the old vertical intake valve horns were two piece and welded from the factory.
dan agnew
03-08-2002, 10:56 PM
with the gray wire already hooked up in the harness the tach should hook up to the control box. unless you have remote key switch in dash and control box replaced with aftermarket shifter. plug in should still be there thou. under dash

Danny
PhastBoat
03-09-2002, 12:42 AM
:confused:
bucket
03-09-2002, 10:29 PM
OK i give up!!!!!!! What kind of camera ??? Nice pic's How do you get the picture's on thread
ALLAN DENNIS
03-11-2002, 03:28 AM
The wire you are looking at is the trim gauge sender ..it is a resistance type of thing that connect to the electric trim gauge.If you hook up an ohmmeter and trim your motor in and out you will see the resistance change.Good luck