bugman
09-12-2015, 04:55 PM
Gents,
It's finally got to me I've admitted defeat and am now after help before I either burn it or sink it.
OMC Cobra leg on my Bayliner with 4cyl mercruiser.
18 months ago had the gearbox rebuilt by an older type backyard guy on the Gold Coast who just happen to have a set of matching forward and reverse gears laying around in the shed that fitted my leg.
Australia day this weekend - boat developed a single intermittent shudder under load. Thought it was the prop spinning or slipping so put a new prop on it - didn't fix it.
Parked it for a while as I was busy.
Three months ago got someone locally (not an outboard mechanic but a cluey mechanic) to take a look at it. We replaced four uni joints in the shaft that were buggered - didn't fix it. Replaced the main universal coupler as thought that might be slipping - that didn't fix it.
Thought it might be motor having the issue - not leg - took it to a ignition and carby specialist who replaced ignition leads, points and gave the carby a tune. Put it in the water today. STILL DOING IT.
Only does it under load in FORWARD.
In neutral you can rev flat out and it doesn't miss a beat. Put it in reverse today flat out while in the river and (while nearly sinking her) never missed a beat.
Only thing I can think of is that it's another forward gear or something.
I need an outboard leg specialist to look at it. Does anyone do them and where.
At this stage I'm willing to take her anywhere and to anyone.
Brett
It's finally got to me I've admitted defeat and am now after help before I either burn it or sink it.
OMC Cobra leg on my Bayliner with 4cyl mercruiser.
18 months ago had the gearbox rebuilt by an older type backyard guy on the Gold Coast who just happen to have a set of matching forward and reverse gears laying around in the shed that fitted my leg.
Australia day this weekend - boat developed a single intermittent shudder under load. Thought it was the prop spinning or slipping so put a new prop on it - didn't fix it.
Parked it for a while as I was busy.
Three months ago got someone locally (not an outboard mechanic but a cluey mechanic) to take a look at it. We replaced four uni joints in the shaft that were buggered - didn't fix it. Replaced the main universal coupler as thought that might be slipping - that didn't fix it.
Thought it might be motor having the issue - not leg - took it to a ignition and carby specialist who replaced ignition leads, points and gave the carby a tune. Put it in the water today. STILL DOING IT.
Only does it under load in FORWARD.
In neutral you can rev flat out and it doesn't miss a beat. Put it in reverse today flat out while in the river and (while nearly sinking her) never missed a beat.
Only thing I can think of is that it's another forward gear or something.
I need an outboard leg specialist to look at it. Does anyone do them and where.
At this stage I'm willing to take her anywhere and to anyone.
Brett