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  1. C

    can't remove out drive

    96 Mercruiser 4.3LX 6cly vortec 262cid alpha one gen two last month I removed the lower unit only to replace impeller. working alone I had trouble re-installing the unit. was advised to remove upper unit, connect the two then re-install. using a floor jack, I was able to do that and was pleased...
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    How do I pin point source of vibration

    96 Mercruiser 4.3lx 6cyl vortec with alpha one gen two outdrive. I took the outdrive off and installed a new water pump kit. Who ever did it last broke two of the four housing bolts off and left it like that. I drilled them out and mounted the new housing with 4 new bolts. Didn't see any other...
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    96 Mercruiser 4.3 L 4bb V-6 Vortec with Alpha One outdrive.

    Put in new plugs, plug wires, dist. cap and rotor. It backfired once starting it but then started and went to a smooth idle. Sounded good. I let it run for 4-5 minutes to loosen up the oil to make it easier to extract through the dip stick tube. Today because of the backfire, I replaced the...
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    Trim troubles

    96 Mercruiser 4.3 L 4bb V-6 Vortec with Alpha One outdrive. The up and down trim switch didn't work at all. Tried jumping solinoids and didn't even get a clicking sound. So I replaced the positive wire from the battery and the big fuse on the end of it. Then I replaced both solinoids, made sure...
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    flames up when starting

    96 Mercruiser 4.3 L 4bb V-6 Vortec with Alpha One outdrive. Boat hadn't been used for about a year. Stored without gas. So two days ago I filled the tank, bought a new battery and it started up. Went to idle for a few minutes with the ears on and I shut it down. Today I cranked it over for about...
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    Shift Shaft problem?

    2004 50hp ELPTEFI 4 STROKE. Just completed a water pump replacement and now having trouble reinstalling the lower unit. I can turn the shift shaft 180 degrees easily and it remains in forward so I turned it as far as I could CCW by hand then put vice grips on it and managed with force to get it...
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    04 Mercury 50hp 4cyl EFI trouble removing water pump base

    Have a 2004 Mercury 50hp 4 stroke EFI. Decided to change the bottom plate as well as the water pump base this year with my routine impeller change. I inserted a screwdriver in each recessed spot at the top of the base and started to pry. I believe it has been in there since day one because it...
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    2004 Mercury 50hp 4stroke EFI won't accelerate.

    2004 Mercury 50hp 4stroke EFI Motor starts up and idles fine. Put it in gear at idle and it takes off at about 2mph like it always has. No issues until I attempt to accelerate. Then it acts like it wants to go for maybe one second before it starts to bog down and eventually die unless I bring...
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    Need help identifying engine.

    1984 Mercruiser 5.7L 260HP 350CI Sterndrive Alpha One Gen One. The only tag I've found is from a Quicksilver re-power several years ago. Makes it difficult ordering parts. I brushed off some coorosion today and found the block is stamped between the intake manifold and the fly wheel housing with...
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    Starting problem. Something just spinning

    84 Mercruiser 5.7L, 260 sterndrive, alpha one gen one. Last time out was beginning of March with no issues, ran fine. Expecting the grandkids in a few weeks so I filled up a large tote with water today, lowered the out-drive and went to start it to be sure it was still running fine. The starter...
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    Replaced Thunderbolt IV ignition system with Delco EST

    I replaced my thunderbolt IV ignition system with a Delco EST due to a lack of spark. With the tach and the shift interrupter switch disconnected for the first start up attempt it showed the no spark problem was fixed as there were bursts of flames shooting out of my Rochester 4 barrel carb...
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    No spark produced by new coil

    Have an 84 Mercruiser 5.7L 260 sterndrive. It was running rough I pulled the distributor cap and found the contacts covered with green corosion, the rotor contact was black and rusted to the shaft. Had to cut it off. The connections on the coil were also badly coroded. So I replaced the cap...
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    Acts like it's slipping out of gear when accelerating

    Have a 1984 Mercruiser 5.7L with Alpha one gen one. I accelerate slowly, nothing quick and get up on plane without issues. Once there, if I continue accelerating it acts like it goes into neutral. Rpm's instantly increase as boat speed instantly decreases. The prop is still spinning but much...
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    Gas spewing from plug holes during compression test.

    I replaced the carburetor on my Mercruiser 5.7L 350 engine solely because the throttle linkage was getting still and it stuck a few times. It ran fine, just a bit sticky. In hindsight that was a pretty trivial thing to complain about. So I purchased this new, re-built, beautiful Rochester...
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    Engine swapping compatibility?

    I currently have a Mercruiser 5.7L 250hp sterndrive with alpha one gen one outdrive. Started running very bad. Two plugs were black and dripping oil. One cyl at 30psi, three at 90psi and the others at 125psi. I'd like to down size the motor with out having to replace the out drive if that's...
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    Should Carb. settings be the same for a 350 and 350 Magnum engine?

    I have a 1984 Mercruiser 5.7L 260hp V8. The Rochester quadrajet (17090210) that had run for years on it finally needed replacing. I purchased a re-build that was advertised as being a replacement that was built and calibrated for the Rochester Quad 17090210. Felt great, then I noticed seller...
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    Help with a too high Idle.

    Have a 84 Mercruiser 5.7L with a large Rochester 4bb. Easy to start and keep running as long as the RPM's are around 2,000 while warming up and around 1,500-1,250. I would like to get\ my idle down enough to safely drop in gear before the tuna arrive. 1. Throughout the Rpm range above it runs...
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    Chrysler outboard information request

    I would appreciate any information at all regarding this outboard. The engine cover says Chrysler. The metal stamp says the following: Mongomery Ward / Mod. vwb 52122 / Ser. 58x 2315 / 15 bhp at 5000rpm / Full Power range 4600rpm - 5600rpm / bia certified I would like an owners manual but don't...
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