MagicNumber
Cadet
- Joined
- Oct 13, 2007
- Messages
- 7
I have a 1987 Mariner 75hp Oil injected motor that I have owned since the first of the year. #0B166808
The motor is super clean under the cowling and the injection has worked great until this past weekend. I had the horn sound and shut her down. The horn sounds constantly with the key on and the motor running or not.
I checked the oil in tank and it was almost full.
I checked the power head temp and it was warm to the touch, certainly not overheated (we were pulling a tube) I also have a good stream of water.
Trolled back to the dock.
So far I have pulled the line that feeds oil to the fuel pump from the oil pump and there is no oil comming out when I run the motor on a 50:1 mix that I am feeding straight into the fuel pump.
Manual suggests looking for a clogged screen in tank so tonight I will drain tank and look at the lines from tank to pump for obstructions etc...
My question is - If I decide to bypass the oil pump what is the proper way to do so regarding:
1. The oil pump - should I just leave the feed line on and the oil tank and then cap off the line to the fule pump.
2. The fuel pump. Would you just run the existing gas line from the fuel tank into the fuel pump and plug the oil feed line that goes into the pump with a cap.
3. The horn - I found the two wires leaving the oil tank. Do you just disconnect them and tape them off? Will that stop the horn?
4. Should you actually pull the pump off the engine and remove the worm shaft that goes into the engine and reinstall the pump to prevent any damage to the engine from not using the pump?
I have searched for the topic and found many posts but I did not find any that specifically addressed what I am asking above. Any help is appreciated even if it is a reference to a previous post. **Edit - I think what I am trying to say is that some of the posts just say "cap offf the lines and premix the gas" others say " you must buy an expensive kit from Mercury to bypass" **
FYI - in case the pump itself is bad I priced a replacement and it is $226.50
Gulp! So as much as I would like to keep it if there is no clog in the tank or a bad line then I woud like to know how to properly bypass the oil injection system as to not harm the motor.
Thank you in advance!
~GOD BLESS~
john
The motor is super clean under the cowling and the injection has worked great until this past weekend. I had the horn sound and shut her down. The horn sounds constantly with the key on and the motor running or not.
I checked the oil in tank and it was almost full.
I checked the power head temp and it was warm to the touch, certainly not overheated (we were pulling a tube) I also have a good stream of water.
Trolled back to the dock.
So far I have pulled the line that feeds oil to the fuel pump from the oil pump and there is no oil comming out when I run the motor on a 50:1 mix that I am feeding straight into the fuel pump.
Manual suggests looking for a clogged screen in tank so tonight I will drain tank and look at the lines from tank to pump for obstructions etc...
My question is - If I decide to bypass the oil pump what is the proper way to do so regarding:
1. The oil pump - should I just leave the feed line on and the oil tank and then cap off the line to the fule pump.
2. The fuel pump. Would you just run the existing gas line from the fuel tank into the fuel pump and plug the oil feed line that goes into the pump with a cap.
3. The horn - I found the two wires leaving the oil tank. Do you just disconnect them and tape them off? Will that stop the horn?
4. Should you actually pull the pump off the engine and remove the worm shaft that goes into the engine and reinstall the pump to prevent any damage to the engine from not using the pump?
I have searched for the topic and found many posts but I did not find any that specifically addressed what I am asking above. Any help is appreciated even if it is a reference to a previous post. **Edit - I think what I am trying to say is that some of the posts just say "cap offf the lines and premix the gas" others say " you must buy an expensive kit from Mercury to bypass" **
FYI - in case the pump itself is bad I priced a replacement and it is $226.50
Gulp! So as much as I would like to keep it if there is no clog in the tank or a bad line then I woud like to know how to properly bypass the oil injection system as to not harm the motor. Thank you in advance!
~GOD BLESS~
john
