Hey fellows need some help on where the psi water gauge hooks in at. i have a 87 merc 135. I just changed the water pump and thought it hooked in with it. I traced the line from the gauge to the motor and it is just run down with the shift shaft. I also traced my speed omitter tube and it also runs down by the shift shaft. If anyone could help on where it connects to i would greatly appriciate it.
