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  1. R

    Thinking of Scuppers. Advice and sanity check needed.

    Seeing I am entering the world of transom and deck replacement, I am also thinking of a couple upgrades. Boat is a 1984 Starcraft Islander with a 3.0 L Mercruiser. I do plan on fishing a lot with this boat in salt water. My thoughts are to add scuppers and a wash down to rid the blood and guts...
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    Transom and Deck Replacement

    I am starting to research this for my 84 Islander and have a few simple questions that don't appeared answered anywhere. When I cut the deck and transom to size should I make allowance for the distance the resin and glass would take up? For example: If a deck board was 48-inches wide and butted...
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    Winterizing Problem (Cannot run motor)

    Its getting cold at night up here and I finally got off my ***** to winterize and found a bad starter so I cannot run the engine. I poured some stabilizer in the gas tank, drained the block, manifold, drive, dumped glycol into everything and drained again. I cannot fog the engine because I...
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    Ruined Literature

    Got the original manual wet the other day. Can anyone guide me to a link for Service Manuals for a 1984 / 140 HP / Mercruiser / Alpha1 Outdrive.
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    Timing Adjustment Help Required

    The timing plate on the engine is square with no valley or peaks. There is only a zero mark and and an A mark with 8-scribed lines from 0-A and 4-scribed lines below zero. If I am setting the timing at 6-degree BTDC whick mark do I use? 1984, 3.0 L Mercruiser
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    Still Confused on Prop

    I have been having a good summer with the boat, but I do not feel the prop is still right. I think I only have a band-aid and am curious to the ups and down sides here from the prop gurus. First, a little background. New to me, purchased in early July. 1984 Starcraft 191 Islander. 3.0L...
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    Engine Won't heat up

    I cannot get the motor to heat up. Tried two thermostats and two different temperature sensors. Both thermostats and sensors were used. I noticed this the other day in the water when I saw the temp just above 100. Boat always ran around 160. Assuming the thermostat was good, what can create...
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    Big Mistake??

    Ran the boat out of Bar Harbor, Maine this week. Everything went well, then... Loud ticking and knocking. Noticed very little oil on the dipstick, but no visible leaks. I think I may be burning it, but I see no smoke. Had 6 people on-board and two were getting sick from the seas. 4-6 footers...
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    Gear Ratio Check

    I have a thought that maybe my Gear Ratio has been altered. How can I check the ratio to confirm? Reasons I think this: 1. The motor is now running mint after my electronic ignition conversion and timing correction. 2. The 16 x 17P prop is a slug on the boat and takes forever to plane. 3,000...
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    Electronic Ignition Conversion

    Any recommendations? There seems to be quite a few different types, price levels and manufacturers for these kits.
  11. R

    Spark Plug Help, please

    Engine Serial # 6829350 Mercruiser 140 HP, 1984 Recommended: Autolite 144 Removed: Autolite 404 The 144's will not fit the hole bore size. Is it possible the block and head and different serial #'s and not original. Maybe the block is older than the head. I am getting the serial # from the tag...
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    More Problems, need experts. Sputturing Engine.

    1984 Starcraft Islander 191 Mercruiser 140 HP Alpha 1 Engine ser# is 6829350 Ran the boat for about 1/2-hour yesterday tubing and well went well. Then I heard the motor sputtering and I started losing power. Exhaust smelled rich and I couldn't get the motor back running OK. PLaying around a...
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    Timing Marks

    1984 140 HP How many degrees are each mark? There appears to be 8-marks in advance and 4 behind zero. I believe they are 2-degrees per mark, but want to be sure and can't find the info anywhere.
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    What is the OEM Carb, Will Rochester Work?

    OK Got some better data now. 1984 Starcraft Islander 191 Mercruiser 140 HP Alpha 1 Engine ser# is 6829350 Current Carb is 13898490 New Roch Carb in box is 7041139 05711R1 So it appears the previous owner brought the Rochester based on the carb thats on the engine. It also appears that the...
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    Possible 3.0 Carb issue.

    The boat is a 1984 Starcraft Islander 191 1984 3.0 Mercruiser with Alpha 1 Outdrive. As far as I know, all is original. Motor rebuilt about 4-years ago, so the previous owner stated. I am new to this forum and am a rookie boater, but am a DIY person. The carb on it looks altered (Homemade gas...
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    Rookie Prop questions

    OK, I'm new to boating and have a concern here. WOT, 3,000 RPM max. Boat and gear "estimated" at 2500# Starcraft Islander 191, 1984 140 HP, 3.0 L Mercruiser and Alpha 1 outdrive. 1.89:1 ratio Motor list max RPM 4600. Prop. 16D x 17P The RPM is way off. I tried a friends prop (16D x 13P) and...
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    Anchoring Islander

    I just purchased an older Starcraft Islander 191 and am curious how to anchor this from the bow without using the hatch. The bow is unreachable without the hatch and I was thinking of building some type of guide system for the anchor line. If anyone has any ideas about this please let me know...
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