Hello all,
I have a 1967 Mercury 950 SS with Serial # 2100114. I have been trying to track down an electrical issue on this outboard and found that the two wires coming from the distributor (points) were bad (Bad as in: internal corrosion, shorting, cracked insulation and very high resistance). I installed a new engine wire harness last year and have checked every other wire that was not replaced. I have tested the stator and it checks out, OK. The outboard originally had the older orange rectifier; I switched it out for the newer diamond shaped one. The old one tested bad and now the new one tests bad. I am assuming it is from my shorted out wires. It must have blown one of the diodes. I already have a new rectifier (new style) and will install it when I replace the wires from the points.
Know here is one of my dilemmas. I was combing the internet today and came across a post on another forum and this is one of the replies in the topic:
?There were three 950s (and 1100s)...
Early 66 ones had the original dual point distributors with side electrode and dual coils. These also had thicker rings. The middle SS models made in 66 had dual point distributors that fired an electronic ignition and the 67 SS models had full electronic ignition. The 66 SS models used the 1/16" rings with small piston pins and the older style rods. The 67 models used the newer larger rods and pistons with larger pins.
The distributor head from a 67 will, I believe, mount on the earlier models to give a easy path to electronic ignition. I'm not sure however with the tang on the drive shaft and the rotor shaft, it might even run backwards...
There's a picture of my 66 1100SS on the site somewhere. It has silver/red decals and a flame on the lower cowling trim horse shoe.
I always thought the 950 was rated at 95hp instead to make the 110hp 1100 look more attractive. That's probably showing my bias against marketing people. Just as the 1250 looked much more attractive vs the 1000 instead of the 1100... Kinda like $19.95 seems like a lot less than $20.00?!??
This reply was written by username CrayzKirk. I suspected something like this went all, but was not sure. It all makes more sense to me about the identification of my outboard. Mine falls in the middle category, so I have a dual point set up with single ignition coil. My question is: will the solid state trigger coil fit my distributor (I would change the rotor also) and where do the three wires hook up. As of right now the dual points have one wire each that connect to a single post of the switch box(left side of box as if you are driving the boat). The condenser is also connected to the same post. The newer solid state trigger coil has three wires from it (brown, Black and red, (I think)) that connects to the switch box using three separate terminals. Would I have to change out the switch box? Or is there a way to hook up the trigger coil to the older switch box. Cost is also a concern; if I have to switch out the switch box I will stay with points.
I will upload some pictures of my set up.
Thank you,
Matt
I have a 1967 Mercury 950 SS with Serial # 2100114. I have been trying to track down an electrical issue on this outboard and found that the two wires coming from the distributor (points) were bad (Bad as in: internal corrosion, shorting, cracked insulation and very high resistance). I installed a new engine wire harness last year and have checked every other wire that was not replaced. I have tested the stator and it checks out, OK. The outboard originally had the older orange rectifier; I switched it out for the newer diamond shaped one. The old one tested bad and now the new one tests bad. I am assuming it is from my shorted out wires. It must have blown one of the diodes. I already have a new rectifier (new style) and will install it when I replace the wires from the points.
Know here is one of my dilemmas. I was combing the internet today and came across a post on another forum and this is one of the replies in the topic:
?There were three 950s (and 1100s)...
Early 66 ones had the original dual point distributors with side electrode and dual coils. These also had thicker rings. The middle SS models made in 66 had dual point distributors that fired an electronic ignition and the 67 SS models had full electronic ignition. The 66 SS models used the 1/16" rings with small piston pins and the older style rods. The 67 models used the newer larger rods and pistons with larger pins.
The distributor head from a 67 will, I believe, mount on the earlier models to give a easy path to electronic ignition. I'm not sure however with the tang on the drive shaft and the rotor shaft, it might even run backwards...
There's a picture of my 66 1100SS on the site somewhere. It has silver/red decals and a flame on the lower cowling trim horse shoe.
I always thought the 950 was rated at 95hp instead to make the 110hp 1100 look more attractive. That's probably showing my bias against marketing people. Just as the 1250 looked much more attractive vs the 1000 instead of the 1100... Kinda like $19.95 seems like a lot less than $20.00?!??
This reply was written by username CrayzKirk. I suspected something like this went all, but was not sure. It all makes more sense to me about the identification of my outboard. Mine falls in the middle category, so I have a dual point set up with single ignition coil. My question is: will the solid state trigger coil fit my distributor (I would change the rotor also) and where do the three wires hook up. As of right now the dual points have one wire each that connect to a single post of the switch box(left side of box as if you are driving the boat). The condenser is also connected to the same post. The newer solid state trigger coil has three wires from it (brown, Black and red, (I think)) that connects to the switch box using three separate terminals. Would I have to change out the switch box? Or is there a way to hook up the trigger coil to the older switch box. Cost is also a concern; if I have to switch out the switch box I will stay with points.
I will upload some pictures of my set up.
Thank you,
Matt
