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04-27-2015, 03:07 PM #1
1987 OMC 225 shift shaft length adjustment question?
Anyone have a manual that explains adusting the length of the shift shaft? One of my engines has a hard time hitting reverse and I'm out of shift cable adjustment. I read online somewhere it should be 26 and 15/16ths while in neutral with the L end at the top rotated towards the boat of the boat but I'm not sure if I believe it. I'm also not sure if you should measure from the flat plate base or the part where the shift shaft enters the base as shown in pic 2 below. Currently its about 26 1/4" from the flat base as shown by pic with tape measure.
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04-27-2015, 03:46 PM #2
see post number 3 at this link. http://forums.iboats.com/forum/engin...y-obj?t=158088
26 13/16 - 26 7/8 on a 90 degree crossflow and 26 5/16 on a 60 degree looper. measurement is the to the middle of the hole in the top of your shift shaft. from the top of your gearcase housing.Last edited by Sparkieboat; 04-27-2015 at 03:49 PM.
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04-27-2015, 03:52 PM #3
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04-27-2015, 03:53 PM #4
you are most welcome.
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04-28-2015, 12:33 PM #5
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04-28-2015, 01:01 PM #6
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04-28-2015, 01:04 PM #7
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04-28-2015, 01:10 PM #8
I just read somewhere else that it should be 26 15/16. where are you at in your threads at that height?
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04-28-2015, 01:11 PM #9
http://forums.iboats.com/forum/engin...rod-adjustment
this is a link where a guy name Joe Reeves says 26 15/16. this guy is a real pro and knows his stuff. whatever he says about an outboard I will do.
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04-28-2015, 01:30 PM #10
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04-28-2015, 03:47 PM #11Supporting Vendor
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7 1/2 turns in
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04-28-2015, 05:17 PM #12
what do you need reverse for?
my book says 26 15/16" .........Logical since making the shaft taller will give you more reverse throw"One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors". Plato .
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04-28-2015, 05:20 PM #13
26 15/16ths happens to be 7 1/2 turns. I put one lower unit on and can't get it to line up with the linkage unless it's in reverse in which case it won't move. when it's not connected I've shift in and out fwd rev and neutral by manually moving the shift cable down where it comes thru the exhaust housing
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04-28-2015, 05:54 PM #14
Finally got it. 2 hrs I've been trying to get the pin in the top. Finally I put a small screwdriver behind it to prop the shift forward a bit and I git it while in neutral. The time I thought I got it and it was binding I think I was actually catching the pin below the taper in the top of the shift. Shaft. Man I never had so much trouble putting a lower on. It's a tapered screw for crying out loud
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04-28-2015, 06:41 PM #15
great now it won't go in reverse (throttle cabe disconnected). I'm pretty sure it did before I tightened the top pin. I guess I gotta drop the lower unit and back the shift shaft out a turn or turn and a half. I'm beat. Getting too old for this.