MN_Sailor
Cadet
- Joined
- Jun 9, 2019
- Messages
- 12
Sorry for the long story, but I figure giving all the info might help diagnose my problem.
I just recently had this oil drip down from just above the mounting bracket above the lower unit. I could be wrong, but I'm assuming the oil is dripping down the exhaust shaft? To me, it looks unburnt and not mixed with fuel from the VRO pump. According to the manual, the only way that's possible is from an external leak. Of course, all the hoses look good, and I don't see any oil resting in the motor housing.
Secondly, I'm getting some decent sized gas puddles after idling or cruzing around for a bit. They don't seem as bad after driving, compared to just idling. I've read these motors can have some unburnt fuel that comes from the exhaust. However, this just started happening.
So, the chain of events that lead to my current problems:
Motor always idled rough, and would bog down occasionally. Replaced fuel filter which solved the problem initially. Boat ran better than it ever did, for 2 days.........
Carbs started leaking so tried the Johnson engine tune up spray. This is when I noticed the oil drip and gas leak after using the spray.
The tune up spray didn't help the idle or carb leaks. Ended up rebuilding all 4 carbs. One of which had a tear in the gasket mounted to intake. Also replaced all 4 spark plugs. They were wet, and a little brown, but sounds normal from the oil/fuel mixture.
Used an inline spark tester, and all coils are firing. Next weekend I'll check compression in the cylinders.
I've had the boat out 3 times since the repairs, but no change in the amount of oil and gas leaking down shaft and in water.
Thanks for any help. I'm kind of baffled.
I just recently had this oil drip down from just above the mounting bracket above the lower unit. I could be wrong, but I'm assuming the oil is dripping down the exhaust shaft? To me, it looks unburnt and not mixed with fuel from the VRO pump. According to the manual, the only way that's possible is from an external leak. Of course, all the hoses look good, and I don't see any oil resting in the motor housing.
Secondly, I'm getting some decent sized gas puddles after idling or cruzing around for a bit. They don't seem as bad after driving, compared to just idling. I've read these motors can have some unburnt fuel that comes from the exhaust. However, this just started happening.
So, the chain of events that lead to my current problems:
Motor always idled rough, and would bog down occasionally. Replaced fuel filter which solved the problem initially. Boat ran better than it ever did, for 2 days.........
Carbs started leaking so tried the Johnson engine tune up spray. This is when I noticed the oil drip and gas leak after using the spray.
The tune up spray didn't help the idle or carb leaks. Ended up rebuilding all 4 carbs. One of which had a tear in the gasket mounted to intake. Also replaced all 4 spark plugs. They were wet, and a little brown, but sounds normal from the oil/fuel mixture.
Used an inline spark tester, and all coils are firing. Next weekend I'll check compression in the cylinders.
I've had the boat out 3 times since the repairs, but no change in the amount of oil and gas leaking down shaft and in water.
Thanks for any help. I'm kind of baffled.