I have a 2006 Honda BF2, 2HP 4 stroke outboard. Beneath the engine case, the extension tube is bolted to bottom of the engine by 3 bolts. At the top of the extension tube there's a cast ring with 3 flanges for the bolts. One of the flanges has a partial crack, about 1/2 way across. Is this a serious problem or if I don't do anything, what are the consequences?
I've removed the 3 screws holding the extension tube to the bottom of the engine/case. It is solid and does not move in the slightest (unbolted). The cracked flange is still holding together, but obviously weak. Before going further with this, I have a few questions,
From looking at the parts diagrams, the extension tube covers the exhaust and drive shaft, and supports the lower unit. Since the drive shaft is connected to the engine and the lower unit, is the shaft actually holding this together? How is the shaft mated with the engine? Do I need to remove the lower unit/shaft to get this apart
What is the best way to replace the extension tube? Is this just removing the lower unit, sliding the extension tube off, or do I have to take the engine/block assembly apart, to get the shaft out?
Is there a used part market where I could find a replacement extension tube?
Thanks,
Don
I've removed the 3 screws holding the extension tube to the bottom of the engine/case. It is solid and does not move in the slightest (unbolted). The cracked flange is still holding together, but obviously weak. Before going further with this, I have a few questions,
From looking at the parts diagrams, the extension tube covers the exhaust and drive shaft, and supports the lower unit. Since the drive shaft is connected to the engine and the lower unit, is the shaft actually holding this together? How is the shaft mated with the engine? Do I need to remove the lower unit/shaft to get this apart
What is the best way to replace the extension tube? Is this just removing the lower unit, sliding the extension tube off, or do I have to take the engine/block assembly apart, to get the shaft out?
Is there a used part market where I could find a replacement extension tube?
Thanks,
Don
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