What to do with my Force 150

S

SlowTalisman

Recruit
Joined
Jun 5, 2012
Messages
2
Ok.
Here is the story, I hope to keep it short.
Purchased a 1991 Maxum 2100XR with 150HP Force OB.
Was told the head gasket was replaced and all it needed was a starter.
Had the boat looked over, Starter replaced, carbs rebuilt and a few other things done.
Paid about $1000.00 for repairs. Boat started.

Took out for safety run... boat stalled and would not restart.
Took back to mechanic, found water in #2 cylinder...
Guy I purchased the boat from out an out lied to me.. He had the head off but did not mention about the chunk missing from #2 piston plus three other cylinder walls are scored...

Looking at a rebuild - but that is way too much to have the mechanic do it.
Looking for some honest input on how hard it is to pull the powerhead off and rebuild it...
I also looked at iBoat.com and only see manuals for 150HP Force engines with 4 cylinders, mine has 5....

I have never rebuilt an engine and am a little intimidated by this.
How much of an undertaking is this?
Thanks,
 
J

Jiggz

Captain
Joined
Oct 23, 2009
Messages
3,909
Re: What to do with my Force 150

You'll probably be better off looking for used, in decent shape powerhead.
 
Frank Acampora

Frank Acampora

Supreme Mariner
Joined
Jan 19, 2007
Messages
12,004
Re: What to do with my Force 150

First, there was NEVER a 4 cylinder Force 150. There WAS a Chrysler 4 cylinder 150.

The five cylinder Force block is significantly heavier than the four cylinder and because of the added parts, especially the exhaust jacket, it is a bit more troublesome to remove from the leg. Like the 4 cylinder engines, mostly hand tools are needed BUT---If you have never done it before it will be a daunting project. You would need to take a lot of digital photos to reference at assembly and you would need to make buy or borrow a tool to pull the flywheel. A good quality torque wrench in inch pounds and one in foot pounds is absolutely necessary to do a proper job. Unless you have a lift of some sort it will take at least two stout men to lift the block.

Quite frankly, if you are intimidated, look around on craigslist for a backyard mechanic--like me-- who will rebuild it for a nominal fee. However, with at least three cylinders scored you are probably looking at replacing all pistons and boring all cylinders. Parts alone ar going to cost about a thousand. And a guy like me will charge about 500 in labor. Although steep, this is a significant decrease from a factory rebuilt powerhead.

However, if you can find a good used 150 block or even a 120 block to bolt to your leg you can do it yourself.

It would really help if you had included your approximate location in your profile so those close to you might be able to help.
 
iwaterdave

iwaterdave

Petty Officer 2nd Class
Joined
Jun 8, 2012
Messages
109
Re: What to do with my Force 150

I bought a 125 Force with a crack in the block and foud a cheap used outboard a few years older. Paid $500 for it and swapped out the power heads. I've worked on cars for years but this is my first outboard. Runs fine. Good luck!
 
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