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#1
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Wouldn't work out to the greatest, but would get you going for awhile until you find the right one. You would need a MUCH lower pitch prop to make up for the higher gear ratio. The 1.50: is for a V8, 1.62:1 is for a straight 6 and some of the V6's, 1.84:1 and lower are reserved for the 4 cylinder engines. The gear ratio matches the engines power curve to the props bite curve. NYMACK66 ran into this with a V4 outboard. The engine just wouldn't ever turn up and was lacking on performance, put the right gear ratio lower on it and all was well.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD  AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 
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#2
08-03-2008, 12:23 PM
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I/O's are a little more forgiving than OB's with gear ratio changes, they need the correct ratio to perform at their peak, but you can fudge a little by changing pitch and type of prop. First of all, what kind of motor are you running? Second, what prop pitch, diameter, and style are you runnign now. third, what kind of performance were you getting out of your old set up( WOT speed and rpm, cruise speed and rpm). Even if you can't get the 1.50 ratio to work, you might be able to trade it out for someone that has a 1.84 and needs a 1.50. With exception to the 1.5 HD's, the 1.65 gear sets are the strongest.
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#3
08-06-2008, 09:29 PM
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Good news
Found a guy nearby with an Alpha 1 out drive that was attached to a 470 motor. The oil in it looks clean, the gear ratio is correct and he will sell me for $200.00. I'll pick it up this weekend. I guess I won't know for sure if there's a problem until I hook it up, but $200.00 seems cheap enough to take the chance.
__________________
Formerly - 89 cuddy 165hp I/O and 95 V21 / 150 Honda When the people fear their government, there is tyranny; when the government fears the people, there is liberty. - Thomas Jefferson
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#4
08-22-2008, 08:16 PM
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Got the outdrive install and it works! I'm back in the water!!
__________________
Formerly - 89 cuddy 165hp I/O and 95 V21 / 150 Honda When the people fear their government, there is tyranny; when the government fears the people, there is liberty. - Thomas Jefferson
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#5
08-22-2008, 08:55 PM
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glad to hear all is well! major failures suck on a boat.
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#6
08-22-2008, 09:53 PM
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try to find a remote resevoir kit(try ebay or a Mercury parts outlet), ther are not cheap, but it can save your drive if it happens again. Ever since mercruiser installed them on the gen II alpha, you hardly ever see upper gear failure from lack of lube
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#7
08-23-2008, 08:49 AM
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Hey RB437, glad ta hear ya got her back running. My buddys drive did the same thing last year. He had it rebuilt and I know it cost alot more than 200 bucks! You did well!! Whats the guy doing with that leftover 470?
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 77 V20 cuddy with 170 I/O Mercruiser 72 16ft. Carolina w/a 25hp Evinrude Last edited by cfelton; 08-25-2008 at 09:50 AM.
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#8
08-25-2008, 07:58 AM
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Congratulations on a cheap fix!
__________________
 1994 Wellcraft V21
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