short driveshaft 225 looper

[vetteman]

just bought a lower unit from a 1998 to replace the one out of my 1989 225. was told that it would work, but when i pulled my old one off the driveshaft is about 1/2 inch longer then the newer one. will it work or do i need to send this one back?? i don't want to tear anything up. thanks, jack

 

[clanton]

Re: short driveshaft 225 looper

There was a photo of ruined crankshaft and bearings on www.screamandfly.com from using the wrong driveshaft. DH can tell you what you need to do.

 

[vetteman]

Re: short driveshaft 225 looper

i was afraid of that, thanks for the info. can i just change driveshafts or do i need a matched gear set??? any ideas??? thanks again

 

[angus63]

Re: short driveshaft 225 looper

I was a victim of such a mistake. Bought a 95 175 oceanpro 2 years ago. Ran great for last 2 years and about a month ago the motor surged and bound up. Upper, Middle, and lower bearings wiped out (upper seized), and journals on the crank all blued. The reason for this is the moron before I had it put a early (pre 94) model lower unit that has a shaft 3/8" longer than the correct one. The o-ring did not engage the crank allowing pressure and oil to escape and water in, and the additional loading on the powerhead did in the bearings. Be absolutely sure the distance from the flange of the lower unit to the end of the drive shaft is identical when swapping lowers on mid 90's v6 loopers. That's about $3700 worth of advise!!!!!!<br />Good luck

 

[93bronco]

Re: short driveshaft 225 looper

they mite share the same lower drive shaft, if yours has a 2 piece drive shaft.<br />if not you mite be able to switch the whole drive shaft assemblies, keeping the pinion/gear together.<br />-<br />you really need both parts manuals to know for sure.<br />or if you have a very cool omc parts guy near by that would look it up for you.<br />- <br />1989 to 1998 is a long time. case mite be totaly different.<br />i know i have a midsec from a 95 225 & it has a different style mating surface than my 1988 140 misection. <raised areas around bolt holes><br /> up to 91 they used the same midsec, you mite want to look at that also.

 

[vetteman]

Re: short driveshaft 225 looper

guys thanks for your input, it helped me from making a costly mistake. now i just need to find and match up the right parts. if anybody knows a good place to get the right driveshaft please let me know. thanks again, jackdeckard@sbcglobal.net