Question for the smartest motor heads I know here on 914world.
My 92 ski nautique has a ford 351, holley 4 barrel and OEM Pro-Tec coil packs. I get ZERO spark. The boys on the boat forum set me up with a D.U.I electronic marine disty and the know-how to use some of the coil pack wiring to run it. 2 wire disty, 12v and tach.
Word is the Davis Disty needs 10.5 volts to spark. I have not tried to start it yet, wanted to get the 10.5 first then set the timing and be done.
OEM wiring is as follows.
Click to view attachment
they want me to use a wire (P, 3A below) coming off of the 12.5 amp breaker in the btm middle of the photo.
I checked the following.
1. at the BATT voltage with key on = 12.38V, key to start = 11.09V
2. TOP RELAY POST (batt wire) key off or on 12.49. Start 9.7
3. RELAY POST to 12.5 breaker key on 11.5. Start 8.2 ( blue circle, i think)
4. RELAY POST TO NEUTRAL SWTCH key on 0. Start 7.8
3A. P WIRE key on 11.5. Start 8.3 ( this wire comes from the 12.5 breaker )
Does all this seem normal? Is my 23 old relay or starter draggin down the voltage.
my relay is upside down... batt comes in on top... otherwise the same.
Click to view attachment