Identifing 4 cly Force Lower Unit

fishon71

Chief Petty Officer
Joined
Jul 21, 2002
Messages
575
Hi,<br /><br />I have this large Force lower unit. All I know is that it is good and it is from a 4 cyl. How can I figure out what HP's and years it goes to? Are there any numbers on these. This is a pretty large unit.
 

WillyBWright

Fleet Admiral
Joined
Dec 29, 2003
Messages
8,200
Re: Identifing 4 cly Force Lower Unit

Post a pic and maybe we can narrow down the possibilities. You have to post on the Full Reply Form thru another site. I use myfishingpictures dot com.
 

fishon71

Chief Petty Officer
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Jul 21, 2002
Messages
575
Re: Identifing 4 cly Force Lower Unit

efd6bf2f.jpg
 

fishon71

Chief Petty Officer
Joined
Jul 21, 2002
Messages
575
Re: Identifing 4 cly Force Lower Unit

Can anyone tell by looking at this picture what years and HP this Force lower unit will fit, all I know its for a 4 cylinder
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,759
Re: Identifing 4 cly Force Lower Unit

Does it have "dual" exhaust?<br />That is, exhaust exits thru the snout behind the prop, and also thru the center of the prop?<br /><br />Also, how long is the driveshaft?<br /><br />HArd to tell from the photo, but assuming the driveshaft is approximately 22 inches long, and the exhaust exits only thru the exhaust snout behind and above the propeller, then it should fit 85hp and 125hp motors, 1984-1989.
 

Kajun37

Petty Officer 1st Class
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Feb 17, 2006
Messages
348
Re: Identifing 4 cly Force Lower Unit

that looks exactly like my 1990 120 hp LU
 

fishon71

Chief Petty Officer
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Jul 21, 2002
Messages
575
Re: Identifing 4 cly Force Lower Unit

Okay here are some more details:<br /><br />Drive shaft length is 28" Dia = 13/16<br />Looks like it only exhaust through the thingy in the rear of the cavitation plate and not through the prop.<br />Total length of cavitation from rear to front = 26"<br /><br />What else can I tell you, can we narrow this down to years and HP it will fit?<br /><br />Just saw one go for more the $300 on Ebay looks just like this, if anyone wants this one I'll let it go for half that.
 

roscoe

Supreme Mariner
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Oct 30, 2002
Messages
21,759
Re: Identifing 4 cly Force Lower Unit

60hp, 85hp, and 125hp motors, 1984-1989.<br /><br />The 90, 120, and 150hp motors used a 2 piece driveshaft according to all my books, you have a 1 piece driveshaft.
 

fishon71

Chief Petty Officer
Joined
Jul 21, 2002
Messages
575
Re: Identifing 4 cly Force Lower Unit

Sounds good to me, If anyone out there needs this, let me know, thanks
 

fishon71

Chief Petty Officer
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Jul 21, 2002
Messages
575
Re: Identifing 4 cly Force Lower Unit

Is there a chance this will mount to a 150 HP as well?<br />Will it fit Mercury of the same? Any others?<br /><br />Thanks
 

jsmith100

Recruit
Joined
Mar 27, 2006
Messages
1
Re: Identifing 4 cly Force Lower Unit

As it turns out I have a 1989 force 125 that needs a lower unit.... I will take a look at the one the repair shop took off to see if this one looks similar.. Do you still have it?
 

fishon71

Chief Petty Officer
Joined
Jul 21, 2002
Messages
575
Re: Identifing 4 cly Force Lower Unit

Yes I still have it, really have not tried to push it, send me an email if your interested, I'll let it go much cheaper than what its worth as I need to clean out, thanks.<br /><br />java705@verizon.net
 

fishon71

Chief Petty Officer
Joined
Jul 21, 2002
Messages
575
Re: Identifing 4 cly Force Lower Unit

Any interest in this lower unit, I need to clean out - make an offer
 

getusum67

Cadet
Joined
Apr 23, 2006
Messages
6
Re: Identifing 4 cly Force Lower Unit

hey bill travis here i need to no if your foot is a 20inch are a 25inch i,m trying to put a pic of my foot
 

fishon71

Chief Petty Officer
Joined
Jul 21, 2002
Messages
575
Re: Identifing 4 cly Force Lower Unit

This looks to be a long shaft
 

jrmontain

Cadet
Joined
Apr 30, 2006
Messages
6
Re: Identifing 4 cly Force Lower Unit

Originally posted by Jeremy Smith:<br /> As it turns out I have a 1989 force 125 that needs a lower unit.... I will take a look at the one the repair shop took off to see if this one looks similar.. Do you still have it?
 

jrmontain

Cadet
Joined
Apr 30, 2006
Messages
6
Re: Identifing 4 cly Force Lower Unit

FOR JEREMY SMITH.....I HAVE A FORCE 125HP OUTBOARD LOWER UNIT AVAILABLE. IF YOU ARE STILL INTERESTED....jrmontain@yahooo.com
 

fishon71

Chief Petty Officer
Joined
Jul 21, 2002
Messages
575
Re: Identifing 4 cly Force Lower Unit

I still have mine, come ge it cheap!
 

RRitt

Captain
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Mar 30, 2006
Messages
3,319
Re: Identifing 4 cly Force Lower Unit

I'm going with 1989 125HP longshaft engine for fishon's picture. <br />To my knowledge that was the only year that combined the slanted skeg with the single piece draveshaft. 1988 and earlier had a straight back edge on the skeg. 1990 and later had a split driveshaft with coupling. It could also be a very late 1988. Very, very late. My engines were made 10/88 and have straight skeg.
 
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