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    type of prop for 40 hp merc

    Ok guys, I have recently aquired a Mercury 1992 40hp 2 stroke 4 cylinder outboard motor. It does not have a spare prop so I went looking for one. It seems these came with a prop with a replacable hub or a prop with a fixed hub. I pulled my current prop but cant tell. Have been a boater for...
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    Easiest to crank manual winch

    Recently purchased a 16' Sylvan alum boat with 40 hp Merc OB. Time to downsize from my 22' as it was getting to much for rhis old man. My whole outfit should fall into a total weight of 2000 lbs or slightly less. I have serious issues with torn rotator cuffs in the shoulder. This makes...
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    Expected speed from Minn Kota

    Curious here, my recent purchase of a 16' Sylvan alum side console with a 55 lb thrust bow mount motor has me wondering what type of speed I can expect for trolling. Previous owner says he got 6 hrs trolling time from two group 31 batteries....I am thinking I could use this rather than trying...
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    Deploying my trolling motor

    Recently downsized to a smaller outboard fishing boat so needing some new to me helpfull information...My boat came with a Minn Kota 55 lb V2 bow mount trolling motor, it works great but, is there a trick to deploying this motor that I dont know? Your supposed to push down the release, push...
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    Erratic Tachometer

    Had my new to me boat out today for another short shake down cruise. Once underway I noticed the tach reading erratically. At half throttle it was showing 6000 rpm and went as high as 7500 rpm but the Merc 40 was not screaming like it should have been, so I know it is the tach not the actual...
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    boat seats

    Having recently purchased a 16' aluminum fishing boat, the previous owner cautioned me about the seats comming out while trailering. I have the typical pedestal base with a pin on the seat bottom that slides into a hole on the pedestal... very common setup in most fishing boats from the...
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    Fuel tank size on 92 Sylvan 16' Sea Troller

    Just bought a used Sylvan Sea Troller 16' aluminum boat. Previous owner does not know how big the fuel tank is, the most he ever added was 10 gallons. So....does anyone know the actual tank size of the built in fuel tank in this model?? Thanks in advance...
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    1992 Sea Troller question

    Just bought a used 16' Sylvan Sea Troller side console model, very nice boat!!! Prevuous owner was not sure of fuel tank size, the most he ever put in was 10 gallons. My question is, is it really only 10 gallons ?? Does anyone know the actual specs on the built in fuel tank? Thanks in advance.
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    Ventelation cures

    Ok, guys here goes, recently downsized from a 22' with I/O to a 16' with 40 hp OB. All is in excellent condition, motor runs great, my issue is the prop ventalates ( sorry if spelling is off) very easy. I can over come the issue with the power trin but boy is it fussy!! Cav plate is right at...
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    1992 Mercury 40 hp 4 cylinder information

    Recently bought a used 16' boat with a 92 40hp 4 cylinder Mercury motor with oil injection. Looking for an operation manual but cant locate one, everyone says " not availiable"....looking fot information on priper filling ofvthe oil tank under the cowl, how full, how long of run time on the...
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    Questions on recent purchase of Mercury OB

    Recently purchased a 16' Sylvan with a 40hp Mercury 2stroke 4 cylinder motor. Been trying to find an owners manual for this motor but getting dead ends. Supposed to be a 1992 model, both boat and motor are in near mint condition and I woukd like to keep them that way.. This motir has the oil...
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    moisture inside distributor cap

    My search did not show anything usefull so if this topic has been used please let me know. I have been helping my neighbor trouble shoot his hard starting and failure to run problem with his 350 4 bbl engine. He has a constant problem with moisture inside his distributor cap. We have removed it...
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    best head gasket for 3.0

    I posted earlier in the year about replacing a head gasket on my1983 3.0 140 hp engine. With the nice weather in our area I decided today was the day to "git er done" Have the head pulled and sure enough the metal head gasket was burned thru between 2-3 cyl. Just a slight little burn thru...
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    3.0 head gasket replace tricks

    I am going to replace the head gasket on my 1983 3.0 mercruiser 140 hp. I do have the merc shop manual and have worked on cars many times. Have also done all my own maintenance on this boat since I have owned it. I have a lower compression on 2-3 by about 30/40 lbs and am beginng to hear a...
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    12v power inverter problem

    I have a 12v plug in the cigarette lighter inverter that I use to power a small boom box radio on my boat. In fact I have two, one is used for my aerator on my minnow bucket. Tye problem is they stopped working on my boat. When I plug them into the car they work fine but not the boat, the...
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    getting fuel flow started on long hose

    I have a 1987 9.9 kicker with a 15hp conversion as a kicker motor on my 22' starcraft. Every thing works great once I get it going. The problem is it can take 15-20 minutes to suck the fuel from the tank to the motor, now I do have a long fuel line approx. 12' mabey a little more. Anyone have...
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    Another crazy anchoring idea

    Another post on here got me to thinking about my anchoring problem on my own boat. I have a 22' Islander which I love but getting the anchor out front has become an unpleasant chore at my age. The hatch is to akward at my age and walking around the cuddy on a choppy day is also foolish...
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    Which coil

    OK in a previous post I talked about a coil overheating problem and need to replace the coil but want to be sure I get the correct one. My 1983 3.0 Mercruiser was converted to electronic ignition (no points) by the previous owner so I have no instructions. I do know that it uses a 12v without...
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    3.0 ignition diagnosis

    I have a 1983 3.0 I/O with upgrade electronic distributor, about a year or so back I had an loss of spark issue and found the coil was bad. Replaced the coil with a non resisted coil as recommended and everything worked great. The last outing everything worked great after some difficulty...
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    engine alignment question

    Getting ready for the season, about to hang my outdrive and checked alignment first. Needed to make an adjustment and found that rather than just sticking the alignment shaft in, I gave it a quarter turn then pulled it straight out. Found it was much easier to "read" where it was tight and where...
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