115hp mariner 25inch to 20inch conversion cost?

aydeayem

Recruit
Joined
Sep 28, 2012
Messages
1
I recently Brought a 2002 115hp mariner with a 25inch leg and i need 20 inch leg for my boat. My plan was to get a jackplate but i was wondering how hard the conversion was? and what the parts would cost?

any help would be greatly appreciated, cheers
 

oldman570

Lieutenant Commander
Joined
Mar 25, 2011
Messages
1,615
Re: 115hp mariner 25inch to 20inch conversion cost?

The cost of a LU and midsection plus the labor to switch everything would probly cost more than getting a newer motor of the correct length for your needs. A jack plate or building the transon up would be alot cheaper otherwise.
Oldman570
 
M

Maxz695

Guest
Re: 115hp mariner 25inch to 20inch conversion cost?

selling that leg and midsection on ebay could bring you a good penny. Mostly I see the short 20 shaft parts and lowers. I myself would love to have the longer section to keep my powerhead up out of the water more. Seems that wake when throttling down always sprays the back of the motor rusting the lower plug. It,s alot of work to dissasemble the tilt bolt steering arm upper mounts lower mounts to npull the midsection. better to just get a short shaft midsection already put together and then get the LU. LU http://www.ebay.com/itm/Mercury-Low..._Accessories_Gear&hash=item337bf9fd6e&vxp=mtr Housing http://www.ebay.com/itm/1974-MERCUR..._Accessories_Gear&hash=item4607264b28&vxp=mtr and http://www.ebay.com/itm/1976-MERCUR..._Accessories_Gear&hash=item45ff68c790&vxp=mtrSearch this page for parts and then go to next page it will give you and idea on part cost if nothin g eles http://www.ebay.com/sch/i.html?_nkw..._odkw=mercury+housing&_osacat=26443&_from=R40 Inline 6 This is a good clean Mercury 20” drive shaft housing removed from a 1977 115 HP outboard serial # 4698136 this housing will fit many 115 HP motors from 1973 to 1977 do your own research to see if the is the housing for your motor----$49.00 shipping to the lower 48 http://www.ebay.com/itm/Mercury-115..._Accessories_Gear&hash=item35bbd885f2&vxp=mtr
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,618
Re: 115hp mariner 25inch to 20inch conversion cost?

Good try Max but none of the listings you posted will work....To convert to 20" you will need the midsection,water tube,shift shaft and driveshaft. It will be cheaper to install a jackplate....
 
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