HELP? 1973 Merc 1500 150 HP and 1987 Mercury 115 HP Tilt & Trim , Powehead Motor swap
I purchased a 1987 Procraft 1780V Fish and Ski with a 87 115 6 Cylinder merc on it and I am having issues that I need help with, I am mechanicly inclined but need some direction and specific information/ assistance with.
I can't afford a mechaninc, so I have to do most everything myself.
1. Hard Starting
The motor is very hard to get started, The key assembly does not look like the priming feature is working properly the key goes into the controls, it looks like there should be a nut around the key assembly butit just pushes into the controls. when it is pressed in long enough the carbs leak fuel.
I took it to a mechanic to have him inspect it and the issues below were what he noted.
And basically told me I had to rebuild the whole engine or find a replacement motor at a cost of 22-2500.
2. Low Compression on #3 Cylinder.
Mechaninc stated 3# is reading 85# on that cylinder while the other cylinders are running at 115# He did not attempt to decarb nor see if anything was directly causing it or try to oil up/decarb or see if rings are frozen.
2. Lack of spark
Mechaninc said I only had spark on 4 cylinders so I had him resolve that issue, by installing a new powerpack"switchbox" , he stated I have spark on all cylinders now, I also replaced all spark plugs with new NGK gapless plugs.
3. Stalling when put into gear.
Thie is the big complaint. when I bought this boat it was on headphones already running when I arrived and didn't get the chance to Lake test it. After I got it on the Water as soon as there was any back presure the motor it would stall after putting it into gear. If I manage to be quick enough and gas it pretty good the boat will go but this is a nightmare at the boat ramp. Once I can get it going then the boat seems pretty fast 40 via GPS with just me and son trimmed out on fairly rough water
4. Hard Steering
This things is hard hard hard to steer, it has through the tilt steering but I need to know how to lube all the steering up and how to determine kinks in the line.
5. Lower Unit
Th oil in the lower unit has a burnt smell to it and there are some pretty large shavings on the plug. The oil is black not milky so no water leaks, Could the lower unit cause the stall?
What Years Lower unit could I swap with to replace the lower unit?
I bought another motor a 1973 or 1975 Mercury 1500 Inline 6 Cylinder wThunderbolt ignition S/N 3503117 with mercontrols and all parts complete. motor has less than 3 hours on a complete rebuild and I was wondering if any of the parts on it could be swapped to my current motor, Like the powerhead or complete top end and lower end?
The Rebuilt 73 Tower of Power motor doesn't have Power Tilt & Trim. Could I use my tilit and trim off of the 87 115 L6 on the 73 1500 motor? It seems th have all of the bolts in the exact same spot for the Yoke and spacing looks to be perfect. It looks like the only thing I would have to do is wire a tilt switch and wire it to my dash instead of the older controls.
? Could I swap out and use the 1987 115HP Tilt and trim Assembley on the 1973-1975 1500 150 HP motor on my boat?
? Could I swap out the powerhead or complete top end and lower unit from the 1973 150HP and put it on the 87 115HP motor or midshaft?
SPECS :
Boat
1987 Procraft 1780 V Fish and Ski 17'8"
http://s107.photobucket.com/albums/m293/patmetz/Boat/
Motor on boat currently
1987 Mercury 115 HP Inline 6 Cylinder With Tilt and Trim electronic Ignition S/N OB110146
Replacement Motor on boat or parts for current motor.
1973-1975 I don't know the year exactly Mercury 1500 150HP thunderbolt ignition 1500 Inline 6 Cylinder with Distributor and Manual tilt S/N 3503117
I purchased a 1987 Procraft 1780V Fish and Ski with a 87 115 6 Cylinder merc on it and I am having issues that I need help with, I am mechanicly inclined but need some direction and specific information/ assistance with.I can't afford a mechaninc, so I have to do most everything myself.
1. Hard Starting
The motor is very hard to get started, The key assembly does not look like the priming feature is working properly the key goes into the controls, it looks like there should be a nut around the key assembly butit just pushes into the controls. when it is pressed in long enough the carbs leak fuel.
I took it to a mechanic to have him inspect it and the issues below were what he noted.
And basically told me I had to rebuild the whole engine or find a replacement motor at a cost of 22-2500.
2. Low Compression on #3 Cylinder.
Mechaninc stated 3# is reading 85# on that cylinder while the other cylinders are running at 115# He did not attempt to decarb nor see if anything was directly causing it or try to oil up/decarb or see if rings are frozen.
2. Lack of spark
Mechaninc said I only had spark on 4 cylinders so I had him resolve that issue, by installing a new powerpack"switchbox" , he stated I have spark on all cylinders now, I also replaced all spark plugs with new NGK gapless plugs.
3. Stalling when put into gear.
Thie is the big complaint. when I bought this boat it was on headphones already running when I arrived and didn't get the chance to Lake test it. After I got it on the Water as soon as there was any back presure the motor it would stall after putting it into gear. If I manage to be quick enough and gas it pretty good the boat will go but this is a nightmare at the boat ramp. Once I can get it going then the boat seems pretty fast 40 via GPS with just me and son trimmed out on fairly rough water
4. Hard Steering
This things is hard hard hard to steer, it has through the tilt steering but I need to know how to lube all the steering up and how to determine kinks in the line.
5. Lower Unit
Th oil in the lower unit has a burnt smell to it and there are some pretty large shavings on the plug. The oil is black not milky so no water leaks, Could the lower unit cause the stall?
What Years Lower unit could I swap with to replace the lower unit?
I bought another motor a 1973 or 1975 Mercury 1500 Inline 6 Cylinder wThunderbolt ignition S/N 3503117 with mercontrols and all parts complete. motor has less than 3 hours on a complete rebuild and I was wondering if any of the parts on it could be swapped to my current motor, Like the powerhead or complete top end and lower end?
The Rebuilt 73 Tower of Power motor doesn't have Power Tilt & Trim. Could I use my tilit and trim off of the 87 115 L6 on the 73 1500 motor? It seems th have all of the bolts in the exact same spot for the Yoke and spacing looks to be perfect. It looks like the only thing I would have to do is wire a tilt switch and wire it to my dash instead of the older controls.
? Could I swap out and use the 1987 115HP Tilt and trim Assembley on the 1973-1975 1500 150 HP motor on my boat?
? Could I swap out the powerhead or complete top end and lower unit from the 1973 150HP and put it on the 87 115HP motor or midshaft?
SPECS :
Boat
1987 Procraft 1780 V Fish and Ski 17'8"
http://s107.photobucket.com/albums/m293/patmetz/Boat/
Motor on boat currently
1987 Mercury 115 HP Inline 6 Cylinder With Tilt and Trim electronic Ignition S/N OB110146
Replacement Motor on boat or parts for current motor.
1973-1975 I don't know the year exactly Mercury 1500 150HP thunderbolt ignition 1500 Inline 6 Cylinder with Distributor and Manual tilt S/N 3503117
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