Recent content by Grumman59

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    Key switch left "ON", Johnson 25hp 3-cyl.

    I have a '98 Johnson 25hp 3-cyllinder 2-stroke which up until now has been fine. However, when I put it away for storage last season, the key switch was left on, probably because I ran the gas out of the carbs and then omitted to switch it off. The battery went flat of course since there is a...
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    Bottom Paint for Aluminum Boat.

    I just received a can of anti-fouling paint that I especially ordered locally to use on an aluminum boat. It's Marpro Aluma Pro. On the front of the can it says, "PERFECT FOR ALUMINUM". Then, reading the application instructions on the side of the can, it says, "DO NOT USE ON ALUMINUM"...
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    Johnson 25 3-cyl, 4 or 3-blade?

    I have a '98 Johnson 25 3-cylinder on a 14'-6" Princecraft side console aluminum fishing boat. I'd like to get a spare prop. The OEM prop is a 4-blade 10-1/2x12" which gives me about 25 mph at about 5500-5600 RPM. I'm quite happy with the current performance and I can buy a spare Solas...
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    '98 25hp 3-cyl Tilt/Trim operation?

    I just bought a '98 Princecraft aluminum boat complete with a Johnson 3-cyl 25hp motor, all in apparently excellent condition but I have a question about how the tilt/trim is supposed to work. It's a Q model, and has the up/down buttons on both the engine and the control handle. There is no...
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    Trimming Causing Misfire? 3.0L Alpha 1

    I have an '86 Alpha 1 with a Mercruiser GM 3.0L. It has an Oildyne-Eaton hydraulic pump and the trim control on the throttle lever. I just completed a comprehensive list of maintenance work on the out-drive -new bellows, hoses, lower shift cable, gimbal bearing, new U/Js, water pump, resealed...
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    Re-shimming after re-seal? Alpha 1

    I have a question for the experts about my '86 Alpha One (gen 1). I just changed the seal in the outdrive where the input shaft enters. I also replaced the aft yoke and the ring that goes behind it, due to rust damage. All the bearings looked fine so were cleaned and returned to their original...
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    ?? Shift Cable Insert, Alpha 1

    The shift cable kit includes a small black plastic insert (or ferrule) part #14705. I can't find any reference in the manual to show where this part is supposed to go. Any ideas? Thanks.
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    Alpha One Trim/Limit wire Polarity?

    I've just replaced the trim sender and trim limit switches on my 1986 3.0L Alpha One but I have a problem when it comes to connecting the leads at the engine side because the new leads are not color coded as the old ones were. I bought a Mercury Quicksilver sender kit #805320A03. The...
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    Grumman Sportboat

    Here's a couple of shots of my Grumman Sportboat. Presently based at my place in Florida, made in 1959 and no leaks yet. Those guys in Marathon NY built quality! 15'-3" long x 43" beam, 112#, rated for 7hp but I recently changed the old Johnson 6 for a Yamaha 8hp. It gets a lot of use in the...
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    New engine. No oil in gearcase.

    Last winter I bought a new Yamaha 8hp 2-stroke from a local dealer. I put maybe 6-7 hours gentle use on it, then put it away in my garage. So now, I get it out before installing it on the boat again and when checking the gearcase oil, all that came out the drain was about a teaspoon of black...
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    Replacing Gimbal Bearing-Alignment Opportunity?

    I just pulled the old gimbal bearing on my Alpha One but I haven't put in the new seal or bearing yet and I'm wondering if it would be easier to align the engine now. I have an alignment bar complete with a bearing mandrel, so I can insert the bar into the splines and then slide the mandrel...
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    Simple Outdrive Stand

    I've seen some nice homemade outdrive stands here but I wanted something simple that would take up least space in my shop to store the unit over the winter. Since I just resealed the drive, I knocked this up. If it's cut with a miter saw keeping all the ends square and put together with deck...
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    Alpha One lower vertical shaft?

    I have my Alpha One drive off to do the bellows and other jobs but I have a question about the lower unit vertical shaft. I removed the water pump base to check the seals underneath and noticed that the vertical shaft feels loose. It will move up and down and also side to side. But if I pull it...
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    Most Likely Cause of Water in Bellows?

    After just pulling off my Alpha One drive unit, I'm surveying the damage that I think was caused by water getting into the U/J bellows. I've also removed the bell housing, shift cable and all the bellows. Although the U/Js are still smooth, the whole assembly is rusted and the bellows were full...
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