Minnboater
Cadet
- Joined
- Jul 9, 2011
- Messages
- 10
Really need some help. My 1989 Mercury ELPTO refused to plane at the start of my annual spring walleye trip. Started fine but got only a strange popping sound at half throttle and above. Assumes this means the 2x2 system never kicked in and never jumped to 4 cylinders firing. I changed the plugs at the dock but got the same result. Ran into town and picked up a fuel pump rebuild kit from the local Merc dealer. New symptom: thought I heard an odd clicking noise at idle. With my fishing trip in tatters I ran the boat onto the water again but got no better result. The engine died after about 10 minutes. I'm worried my hasty repair interfered with oil getting to the carbs and I shelled one or more cylinders. Any thoughts? I'm going to borrow a compression tester tomorrow and see what I get. Would appreciate some perspective on my go-forward plan in the event the cylinders check out:
Step 1: confirm that fuel pump is assembled correctly.
#2: go through and clean all 4 carbs
#3 change the fuel filter
#4 punt
Couldn'd find anything in the service manual about how the 2x2 really works. From the diagrams of the carbs it appears like two of them lack idle jets. Does that mean if I've got two cylinders firing at idle that I don't need to chase an electrical problem.
I really qppreciate the help. My two sons missed a year of catching walleyes and are
hopeful we can salvage some water skiing. I've got a small amount of mechanical ability and not much money to spare and need to keep this a diy job. Thanks.
Step 1: confirm that fuel pump is assembled correctly.
#2: go through and clean all 4 carbs
#3 change the fuel filter
#4 punt
Couldn'd find anything in the service manual about how the 2x2 really works. From the diagrams of the carbs it appears like two of them lack idle jets. Does that mean if I've got two cylinders firing at idle that I don't need to chase an electrical problem.
I really qppreciate the help. My two sons missed a year of catching walleyes and are
hopeful we can salvage some water skiing. I've got a small amount of mechanical ability and not much money to spare and need to keep this a diy job. Thanks.