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    Johnson 130 High Altitude Jetting

    Thanks for the reply, and the 67d recommendation. The local boat shops are a bust--which is a little frustrating since all I really need is a few numbers out of a tech bulletin. The compression numbers are good--140 to 150 on all four. Thanks for the tip about the timing light, though I'm not...
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    Johnson 130 High Altitude Jetting

    Hi, My son bought a 1850 Crestliner Fishhawk in Minnesota last fall, and brought it home to Utah. It has a 1995 Johnson 130 on it. The altitude at our closest lake is 4500ft, and more like 7000-8000 feet at the lakes we fish most often. The boat runs decently (though very rich) on cold days...
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    Replacing gimbal housing on a Mercruiser 470

    I have a 1978 Searay with the original Mercruiser 470 engine and outdrive. Here?s the problem: a few weeks ago my gimbal joint broke. Before I could get the engine shut off the broken joint flipped around and broke the little lip on the gimbal housing that the bellows clamps to. I?ve checked...
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    Fisher Avenger SC 14

    I have an elderly neighbor who purchased a 2007 Fisher Avenger SC, 14 footer last year. It has a Merc 40 hp. It's a nice looking boat, and good for what he does (mostly reservoir fish), but he's complaining of a problem. He says the boat seems to fill with water too easily. He says that...
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    Tachometer test proceedure?

    I have a Mercruiser 470 that recently had some wiring problems. Now when I turn the ignition switch to "run" the tach pegs out. I know I had a bad ground earlier (fixed I hope), but I think I may have fried the tach. Is there a test procedure for checking a tachometer? The hook up is, I...
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    Mercruiser 470 Wiring Problem

    I have a 1978 Mercruiser 470. Like many of the 470s, this one had charging system problems and a couple of weeks ago it died on the lake. To make a long story short, the regulator was blown. I performed a ground continuity test on the positive terminals of the regulator and discovered that at...
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    327 for 3.7??

    Is it possible to swap a GM 327 for one of the old 3.7 liter 470 Mercruisers? Will that engine couple with the 470 outdrive? How difficult is that kind of thing?
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    Mercruiser 470 Voltage Regulator

    I recently bought a 1978 18' Searay with a Mercruiser 470. Having read most of the Mercruiser 470 posts created in the last three years, I know I made a mistake, but I figure that buying a boat at all was a mistake, so now it's just a question of degree. Anyway, I took it out on Saturday and...
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