jcw74801
Seaman Apprentice
- Joined
- Feb 29, 2008
- Messages
- 32
I bought a good fishing boat so cheap that the engine was basically free. The owner, a fishing guide, had the powerhead rebuilt by a reputable shop. Not too long afterward something went bang and the block was cracked. I don't think I got the whole story but I was able to buy the boat and motor at a time when I could not afford a boat or a motor.
Since the motor continued to run strong with good compression I decided to run it and keep an eye on it. It's just a weekend fishing boat used on a local lake. Well, 5 years later and it still runs strong and compression is still good. It has, however, developed a knock. It's finally time to open her up and see what's what.
The visible portion of the crack is at the #1 intake. Then it goes up and over the top, disappearing under the flywheel. Today I pulled the intake and flywheel. The crack does penetrate the #1 intake. Then it goes all the way across the front of the block to the other side.
I am assuming that #1 has been running lean. What I can see of the cyl. wall through the intake seems to indicate just that. Hopefully it also explains the knock.
In the pics I highlighted the crack for visibility. The cylinder pics are through the intake with the piston as high as it will go. The block is upside down on a stand. I think you can tell which of the two is the bad one
I almost hate to ask, but does anyone think I could get this block repaired?
What are my options?
This is my first outboard, to own or repair, and I'm still a little shocked at how much the parts cost. I don't want to try and piece this thing back together to find out I could have bought a rebuilt powerhead for less. Or a whole used engine.
Not sure which direction to go. Thanks for your input. This is a 1996 J150EXEDB.
Since the motor continued to run strong with good compression I decided to run it and keep an eye on it. It's just a weekend fishing boat used on a local lake. Well, 5 years later and it still runs strong and compression is still good. It has, however, developed a knock. It's finally time to open her up and see what's what.
The visible portion of the crack is at the #1 intake. Then it goes up and over the top, disappearing under the flywheel. Today I pulled the intake and flywheel. The crack does penetrate the #1 intake. Then it goes all the way across the front of the block to the other side.
I am assuming that #1 has been running lean. What I can see of the cyl. wall through the intake seems to indicate just that. Hopefully it also explains the knock.
In the pics I highlighted the crack for visibility. The cylinder pics are through the intake with the piston as high as it will go. The block is upside down on a stand. I think you can tell which of the two is the bad one
I almost hate to ask, but does anyone think I could get this block repaired?
What are my options?
This is my first outboard, to own or repair, and I'm still a little shocked at how much the parts cost. I don't want to try and piece this thing back together to find out I could have bought a rebuilt powerhead for less. Or a whole used engine.
Not sure which direction to go. Thanks for your input. This is a 1996 J150EXEDB.