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    common prop size ?

    Is there a site where you can find a standard prop for a given motor size, or drive? Just looking for an average if there is such a thing. Thanks.
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    Gimble install,suggestions?

    If you read any given source, you'll find lots of ways to install a gimble bearing. I checked with 3 different merc dealers and got 2 different ways to install. Notches IN and Notches OUT. As far as function, the bearing will work either way. Merc has done it both ways. Now after spending the...
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    Bearing driver tool,will it work?

    I'm looking at a gimble bearing tool on E-Bay. It looks like a collar that slides over your alignment tool to drive in a bearing. Has anyone used this tool. I'm a little concerned about hammering on my alignment tool and damaging it. Also I'm worried about the end that goes onto the coupler...
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    any cleaver hints to install gimble bearing?

    I have the manual but after reading it ,i'm wondering if there are any hints to install my gimble bearing? It's a 87 Alpha 1. It was a bear to get out and I'm hoping it will go in easier. Notches in or out? Thanks Ernie.
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    Un-Defeated,Finally, and thanks to all.

    Just a quick note to say thanks for all the input everyone gave . I finally have that gimble bearing laying on my work bench. I found a puller like the one 45auto and Mtribe08 recommended on my thread. I do also want to say that it still came out really hard. The surprise was to find NO...
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    Defeated!!!!!!

    I hate to admit it but I'm defeated after breaking every home made puller and even a rented 3 jaw slide hammer, that gimble bearing has found a home. I'm going to have to take this boat to a dealer 50 miles away so he can charge me $100 to pull this bearing. I'ts an Alpha 1 witha 3.0. I'm...
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    OMC,can't be all bad!

    I have been reading alot on this site and have recieved a huge amt of help from everyone. I've been fixing up a second old boat,87 chaparrel with a 3.0 and alpha 1 drive. The reason I'm writing is my other boat is a 86 Glastron with a 3.0 and a OMC drive. This boat has faithfully served the...
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    How do I read this number?

    I have a 87 mercruiser alpha 1 with a 3.0 The prop number is 48 78118 A40 17P I'm trying to figure out if I should buy a new one or have 1 blade repaired that is a little chipped up. I'ts has a few chips about 1/8 deep about 2 inches long. It looks like it was dragged a little on just one...
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    Flooded bilge.

    Simple question, Can water enter the u-joint bellows by way of a rainwater flooded bilge area? I haven't removed the drive but plan to as soon as a new gasket set arrives. I have a alpha 1 with a 3.0. Thanks Ernie
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    what oil filter?

    I have spent over an hour on the web trying to find a answer to a simple question and proberly should have started here first. Does anyone know off hand what fram oil filter to use on my 86 omc 3.0 motor? I could not even find an application guide of the Fram site. Thanks Ernie.
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    Alpha 1 on a 87 Chaparrell 3.0

    Does anyone know where I can find a picture breakdown of the control/shift/throttle arm. It's the one with the square throttle button. I'v taken it apart to grease, now when I put it back together It doesn't work. So much for prevenative maintaince! Any help would be great. Thanks
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    Do I attempt to salvage this recent buy?

    I don't want to waste poeples time BUT! I just this past week bought a 87 chaperral 17ft 3.0 with mercruiser drive. I bought this over the internet, I know STUPID! right? Ok the boat arrived at nite and we started it with muffs and it ran great. As the man left and waved he said good luck and...
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    u-joint bellows replacement Help please!

    As sugested by Don, I'm going to attempt a bellows replacement because of the difficulty I had in reinstalling my 86 omc cobra drive after doing my first winter maintaince. I have a Seloc manual and it does not explain this procedure very well at all. Question 1, is this a real difficult job...
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    omc alignment tool, how far in?

    My alignment tool just came this afternoon. I took it out and tried it in the boat. How far in does it go? It slides right in through the gimble then you can feel it touch the splines then it slides in like butter about another inch then stops solid. with a lite coat of grease you can see spline...
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    OMC drive off 1st time ???Normal

    I removed the drive off my boat for the 1st time. I took nuts for rams. then 6 nuts off the drive, drive was all the way down. Pulled and drive came back about 1 inch then stopped dead. It took a lot of wiggleing and pulling before I could get it all the way off. This is an omc 3.0 that I just...
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    OMC Cobra to mecrury ontdrive??

    Hi everyone! Just catching up on my reading. I read a post on this site called Dan's I/O transom repair and he states he is not worried about having a Cobra outdrive on his boat that he is repairing because if the Cobra dies he can just replace it with a Mercury out drive. Is this true? Is it...
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    OMC drive weight

    I'm taking off my 86 cobra drive for the first time. I have the manual,the alignment tool, and have built a dolly I saw on this web site. My only question is,Does anyone have a rough idea how much it weights? I am a little concerned that as soon as it's off the bolts that it may be more than a...
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    grease fitting on 86 cobra drive

    Hi everyone,First post. I have a 3.0 1986 omc cobra outdrive. On the starbord side of the drive, up near the transom, there is a grease fitting. I have been told this is for the gimble bearing. Is this true? and if so, what kind of grease do I use and how often does it need to be greased? thanks
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