Converting a 25 in. shaft to a 20 in. shaft!

[Central Bears]

Have come across a good deal on a 150 hp. Optimax yr. 2003,but would have to change the 25in. to a 20 in.How hard,and what details?Flex!

 

[emckelvy]

Re: Converting a 25 in. shaft to a 20 in. shaft!

Either you'd have to come up with an extension kit, or pull the powerhead and install on an XLS mid-section and longer-shafted lower unit. Or have your lower unit disassembled and an XLS driveshaft installed, along with the 5" extension housing or an XLS mid-section.

It'd have to be an awfully good deal to make you want to do that, though. Either way it's gonna be rather $$$$.

Here's one mfr offering extension kits, there may be others:

http://www.baymfg.com/mercury.asp

HTH.........ed

 

[Faztbullet]

Re: Converting a 25 in. shaft to a 20 in. shaft!

It would require you to change driveshaft to a 20"lenght,swap midsection and steering arm assy,really a lot of work and parts. It would be cheaper to just install a 4" jackplate and raise motor to proper height.

 

[emckelvy]

Re: Converting a 25 in. shaft to a 20 in. shaft!

OOps, sorry going the other way, XL to LS, still lotza work, like Faztbullet sez.

Jackplate sounds like the least $$$ way to do that, fer sur!

 

[Central Bears]

Re: Converting a 25 in. shaft to a 20 in. shaft!

thanks guy's,I have a Hydrolic jack plate on my flat's boat.6-in. set back,8-in. rise.I knew it would be a pain to do.I guess I could give it a try,to see if i could run in a foot of water still.Motor is a deal,2003 but has a knew 2005 powerhead low hrs.,it's on a Bayliner,I might buy the boat and motor together,than sell boat.Can't beat $3,000!Thanks!