Recent content by ledgefinder

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    1991 Evinrude 9.9hp, excessive crank end play

    Hi iBoats!, Have 1991 Evinrude 9.9hp, runs great. However, when removing electric starter, I noticed that the crankshaft has a lot of end-play. Moves visibly, with an audible 'clunk', when push/pulled. A dial indicator measured 0.017" (17 thousandths of an inch). Only a bit over spec, but...
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    Need prop for antique Johnson HD25...

    I need a prop, prop nut & shear pin for an old Johnson HD25 (2 & 1/2hp) - anybody know where online would have them? <br /><br />Thanks,<br /><br />LedgeFinder
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    Choice: OMC 70hp triple vs. Merc 500

    I have a choice of a either an OMC 70hp 50 cubic inch triple, or a Merc 500 44 cubic inch four cylinder, to put on a 15 foot ski runabout. <br /><br />I'm wondering if anyone's run both on a hull, and can comment on their relative performance. I'm interested in comments on relative fuel...
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    70hp blown head gasket on 2 - common?

    I just got a 1977 70hp triple. Compression was 120/35/120, and the #2 plug might have been too clean. <br /><br />On pulling the head, found that the head gasket was blown (looks "torn") on #2, dead center on the exhaust side. It was an OMC brand gasket, not original, and the head bolts did...
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    Thermostat springs 1970 V4...

    There are two springs inside the thermostat box on the 1969-72 V4s. One is much heavier (stiffer) than the other. I 'think' I have them in correctly; heavy one on the thermostat, light one on the venostat. <br /><br />Sound right to anyone who knows? My factory parts list shows springs of...
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    Charley slams Pt Charlotte - hang in there Dale!

    Just saw newclip of current weather (145 mph rain) in Pt Charlotte. That's the stomping grounds of DHadely, who's helped many of us bigtime over the past few years. Hang in there, buddy!
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    Plug 'chamois' colored - too lean? 1988 88spl

    This 1988 88SPL runs very well. All four plugs are uniform in color, but lighter in color than I'm used to seeing. They are about the shade of chamois cloth, or maybe the color of a cardboard box with a little yellow tone thrown in. <br /><br />From 2-stroke kart racing, I am used to 'ideal'...
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    How much to trim to make 'test prop'?

    I plan to trim a standard 17" pitch prop to act as a 'test prop' for V4s & inline 3s. <br /><br />I have an 'official OMC' test prop for 55/60/65/85/100hps that I use. However, I want to create this informal test prop as 1) a help to the board, and 2) because I'm not sure if the hub in my...
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    Stripping paint from plastic cowl, '89 Mariner

    Any advice on how to strip or sand the paint from the plastic cowlings (such as the clamshell type on my 1989 Mariner 75hp)? I'm afraid sanding will scratch it too easily, since it's plastic - just wondering what people use.<br /><br />I searched the archives on this & couldn't find...
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    Problem areas? '89 Mariner 75hp triple...

    I just bought a 1989 Mariner 75hp triple. Is this engine built by Merc? I know sometime back there in the past, Mariners were Japanese. Also, any problems unique to these that I ought to worry about? I have worked with OMC V4s a good bit, but this'll be my first Merc/Mariner newer than the...
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    Recommend good place for block boring?

    Any votes for "the best" place to have OMC V4 blocks bored/honed? I am in southern New England so local is better. However, I have three to do, so if there's a real good place nationally, the shipping should be worth it.
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    No more Johnson/Evinrude online parts catalogs?

    Bummer! Just tried Doug Russell and Doller Offshore online catalogs - no more Evinrude & Johnson sections! What's the world coming to when a man can't mooch parts number info online? :) Trying to see what else will replace a 1990 115 clyinder head. Anyone know if this situation (no more...
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    OK 2 use standard 3.5 V4 pistons in 135/140s?

    The mid-70s 135s used a piston with a high gas-loaded top ring, which I think is no longer available. Anyone know if it's OK to use the standard 3.5" crossflow piston here (e.g., Wiseco 3073 series)? <br /><br />Also interested in same question for 125 crossflow(1st 3.5" OMC, 1971 & 72).<br...
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    1969-77 OMC V4s LU 'guidance' tubes - where?

    The 1969-1977 OMC V4s use a plastic tube around the 2 brass water pump pipes, to guid the pipes into the water pump on assembly. Anyone know where I can buy a few of these?<br /><br />Thanks<br /><br />Bill
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    How to chamfer ports after honing?...

    I plan to try to learn how to hone on an old 125. I will try to overbore .030 with a Sunnen hone (not a spring-loaded one). When doing motorcycles, you had to chamfer the ports afterwards - just a little bit so you don't catch a ring. Anyone know what the recommended chamfering procedure is...
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