Hi,
I have a 75HP Mecury. I want to covert it from oil injection to premix. Is there a kit or does anyone know of a procedure that I can perform? I believe that it is a 88 motor. Any information will be greatly appreciated.
Remove the pump and remove the driveshaft for the pump then reinstall the pump, to keep the pump and drive from self destructing
Laddies sir, I did this recently on my 3 cyl 90. All that I removed was the ss drive gear which was part of a shaft with a slot in the other end for running the pump. Somebody on here said that I had to remove something else at the gear end of the shaft, like a stop to keep the shaft pushed up against the pump, keeping the slot engaged. I looked at my IPB and saw no other part. Did I miss something?
Thanks,
Mark
Any problems since you did this? I'm doing the same to my 88 75hp. Thanks
Thanks for your input, I've been trying to find out how to do this for a while now.
Here is another twist I did... I have a 90h.p basiclly the same motor...I took the hose coming off the oil pump drilled a hole in the tank at the top, put a grommet in and put the hose in there... I am using the oil that is in the tank as it recycles itself through the oil pump and then back into the tank..This way everything is right there is someone buys the boat-which they are doing now and can make up their own mind...The large engines have a plug that replaces the pump to hold the plastic drive gear on the crank in place. Wished they made them for all of the motors...Anyway, Laddies is the expert, I just cheated....
Laddies sir, I did this recently on my 3 cyl 90. All that I removed was the ss drive gear which was part of a shaft with a slot in the other end for running the pump. Somebody on here said that I had to remove something else at the gear end of the shaft, like a stop to keep the shaft pushed up against the pump, keeping the slot engaged. I looked at my IPB and saw no other part. Did I miss something?
Thanks,
Mark
Here is another twist I did... I have a 90h.p basiclly the same motor...I took the hose coming off the oil pump drilled a hole in the tank at the top, put a grommet in and put the hose in there... I am using the oil that is in the tank as it recycles itself through the oil pump and then back into the tank..This way everything is right there is someone buys the boat-which they are doing now and can make up their own mind...The large engines have a plug that replaces the pump to hold the plastic drive gear on the crank in place. Wished they made them for all of the motors...Anyway, Laddies is the expert, I just cheated....