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    3.0 mercruiser crank same as 140 mercruiser?

    Have an opportunity to buy a mid eighties 3.0 mercruiser crank for my early eighties140, but before I jump in with both feet, need to know if they are in fact compatible. I've read there's a larger flywheel for the later model 181 Cubic inch engines, which also requires a larger bell housing...
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    Yamaha 70ETLK overheat

    Just bought a Yamaha 70ETLK on E-bay (no giggling please). Seller claimed he was a marine mechanic with 30 yrs experience, and his feedback was excellent. In his ad, stated the outboard had a rebuilt powerhead with new Wiseco pistons .020 over, new water pump, bearings, etc. I removed the...
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    Yamaha 70 ELTK wiring

    Need assistance identifying wiring on a Yamaha 70 ELTK mid eighties vintage. Harness coming from tilt trim has wires terminating in socket connectors.....are they for a remote trim/tilt switch, and if so, what colors do what functions? Also, a couple of wires coming from the oil reservoir...
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    Loran driven autopilots

    Purchased an older boat with a King Marine autopilot. Consist's of a wheel mounted servo, controller, and Loran C receiver. I'm having some difficulty getting a reliable signal, and suspect the antenna coupler may be toast. Don't care to throw any more money at a declining system. Its my...
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    Need help with Si-tex GPS-8

    Bought a used Sitex GPS-8 with no manual. Can anybody help?
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    Marine Coils VS Automotive Coils

    Anybody know the technical difference between automotive ignition coils and the marine type? Both of my engines have automotive type, wonder how big of a deal not to have the "correct" ones.
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    Pertronix ignition conversion

    Considering converting my twin Mercruiser 140's from points over to the Pertronix ignitors. According to most info I've seen, it seems to be a simple job. Any information appreciated. Also, is there much gain without changing your wires and coils over to a more compatible type?
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    Merc 115 won't idle reliably

    1995 Merc 115 (4 cylinder inline) won't idle reliably. A little stubborn about starting, but usually fires up after shift bypass throttle is bumped up a little bit. Once it starts, runs great at fast idle, but once it's put in gear falls flat on its face. Attempts to re-start fail unless...
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    Outdrive oil reservoirs

    Been considering oil reservoirs for my twin 140's, but don't want to spend the bucks for new kits. I have a couple of industrial 2 pint oil reservoirs, but need ideas as to the mounting. I am assuming the reservoir must be mounted at exactly the same height as the vent screw on the upper gear...
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    140 Mercruiser Hinge Pin Removal

    Removed my trim senders, used my new $25 hinge pin tool to loosen hinge pins, and get nowhere. They move slightly, but seem locked in with a pin or similar retainer. How to I get to the locking mechanism? Is it behind the U-joint Bellows? Cannot find external means of locking them. 1979...
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