159 hp force

PETE BUTZEN

Seaman
Joined
Feb 27, 2010
Messages
58
looking to buy a 1990 150 hp Force , Need to be rebuild # 5 is out . ? is are these motors worth the money to rebuild ? Thanks Pete
 

Bob_VT

Moderator & Unofficial iBoats Historian
Staff member
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May 19, 2001
Messages
26,064
Re: 159 hp force

No not worth it. Replace with any other brand ;)
 

Frank Acampora

Supreme Mariner
Joined
Jan 19, 2007
Messages
12,004
Re: 159 hp force

It is a difficult call: It really depends upon the sale price. For example: I bought one with two bad cylinders for 300 bucks. The pistons broke rings (which these engines will do more than usual) but did not score the cylinders so I did not need to bore them. Thus, I was able to replace the pistons without doing a complete tear-down and rebuild.

I never liked the 5 cylinder concept and stayed away from the 150s until this one came along at a price too juicy to resist. The engine has converted me, delivering 10 MPH more than the Chrysler 140 it replaced. Yeah, I would buy another.

Generally speaking, if the price is right and you are not afraid to do the work yourself, it is worth rebuilding as long as the damage is confined to pistons and cylinders.

These engines are way more powerful that the Force 120 and 125 four cylinder engines and will make them look sick.

The only weak point I can think of is the starter. The same starter is used on the three, four, and five cylinder engines. If your battery is marginal, it simply will not crank the engine.

So, if you can supply a little more info, I can give you a more definite answer.
 

PETE BUTZEN

Seaman
Joined
Feb 27, 2010
Messages
58
Re: 159 hp force

I have no more info, only # 5 is out . Owner has had stroke I will try to get more info . What do you think it would cost to do repair ? and how dependable is the ignition system ? and would the wiring hook up to my system ? Thanks Pete
 

Frank Acampora

Supreme Mariner
Joined
Jan 19, 2007
Messages
12,004
Re: 159 hp force

104_7263.jpg104_7261.jpg104_7260.jpg

Here are a couple of photos of me dismounting my 140 and mounting on a newly acquired 150.

Depending upon where you live, boring a cylinder (if needed) would cost about 50-60 dollars and a piston will cost anywhere from 80 to 105 bucks. If you need to disassemble the engine for boring, gaskets sets are a bit pricey at somewhere above 80 bucks and a head gasket runs around 65.

Ignition is the (I think) Prestolite and no less dependable than the 3 and 4 cylinder versions. And yes, if you have a Chrysler or early Force (before Merc ignition) then the 150 will easily swap right in using the same controls and wiring

EDIT: I just saw your other post. You have a 1999 120. The control box, cables, and ignition wiring are Mercury and will not work on the 150, but if you get all the parts with the engine, then it is a simply job to mount and get running.
 
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