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    pleasurecraft overheat question

    pleasurecraft, v-8 ford engine. 1987 freshwater cooled. 302. The engine's manifolds and risers got extremely hot while the engine itself stayed at normal temp-real wierd. The first thing I did was pull a riser to see if they were clogged and they were very clogged so I did the manifolds and...
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    yamaha torque spec question

    yamaha 225txrz. v-6 HPDI 2001 The exhuast plate gasket between the cylinders (Under the coils) was leaking so I went and changed the gasket. I cleaned out all the threads and cleaned all the bolts. I just wanted to know what the torque specs are for those bolts and if anything should go on...
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    possible cracked block? (Mercruiser)

    Mercruiser inboard. V-8 carbed. thunderbolt iv or v. freshwater cooled. Not sure about years or numbers.... I went to start it for the first time this season and it wouldn't turn. Pulled some plugs and had some anti-freeze come out, mainly out of the rear plugs and the ones under the...
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    mercruiser overheat, still can't figure it out

    Mercruiser 4.3l vortec. ser# OW001038 The engine won't overheat at an idle but once I bring it up the overheat buzzer goes up and the temp goes up. I then lower the rpms and it goes back to not overheating. I changed my pump impeller which I do every year, and I took off the hose at the...
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    merc won't shut off

    Merc, 2002. OT507033. 125EXLPTO The engine won't shut off, I have to shut it off by choking it. I replaced the key switch and it still did the same thing. I then took the ignition wire (purple) and put it straight to ground but it still won't shut off after I start it up, any ideas?
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    Testing Ignition System

    johnsons 4 cyl. J90PLSTC Between wires Brown and Brown/White from the stator I have an ohm reading of 1.064 on the 2000 ohm setting. I'm assuming this means 1,064 which is way above what the directions say should be 450-600ohms. Does anyone know this 4 cylinder system and know if this...
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    Almost fixed it (Ignition)

    Johnson J90PLSTC. Optical Ignition. I had no spark so I replaced the optical eye. I just thought I would start there as that was a quick fix for another engine in the past. After I replaced the eye the engine started right up. After maybe a minute it sputtered a few times then just died...
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    strange part

    I have a mercruiser MPI V-8 350 Horizon 2001. Tranny I went to replace the coupler and found it is a very strange one. On it are the words Centa Antriebe and a part # CF-ds-22-336. I have never seen one like this before. I tried to get the coupler from the company but they sent me one that...
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    Mercruiser power steering unit question

    Best I can do for engine is that it is a mercruiser 7.4L MPI bravo. We have the engine out of the boat and would like to find out if we can test the steering unit (by that I mean the part that is still in the boat, the part that is attached to the transom assy) without the engine hooked up to...
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    Is this johnson kicker good enough

    I have a 17 footer and am looking to get a kicker for it only to get to land if my main engine dies. The kicker I have is a johnson 2hp. Would that be enough to push the boat?
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    Optimax won't run

    Optimax serial number 1B364399. It is a 3 cylinder, boat hull is 2006 so year should be right around there. The engine starts up and runs for maybe 10 seconds or less when you first try to start it. After that it runs for maybe two seconds. Thought it sounded like a fuel issue so we...
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    Reverse Rotating E-Tec

    Does it matter if I put a reverse rotating E-tec on a boat by itself? What would be the problem if it is not standard?
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    List of tools

    I was trying to organize my tools using the Special Tools book that Mercruiser supplies but found that they don't list all their tools in that book. Is there any list on the internet that has all their tools from the books?
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    Compression Check Results

    Engine: Mercruiser v-8, Carbed. Thunderbolt ignition. STD rotation. Transmission. Year and model were gone...... Question: Compression check showed 160-170 compression in all cylinders but 6 and 8 where the compression was only between 120-125 on both. Any idea what would cause this?
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    What to check out when looking at engine

    I have to check out a used boat for someone and am wondering what to take a look at as far making sure the engine is ok. It is a merc inline 4 or 6 I forget. I know the guy used to keep everything in mint condition. The engine and the drive were recently complelety rebuilt. I don't think he...
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    DDT tools

    I have the digital diagnostic terminal with the 2.0 cartridge and the 1.2 cartridge. I know the 2.0 is for mercruisers and that is what i am curious about. Are there other cartridges out there for the mercruisers, i'm not looking for the outboard ones. Does 2.0 cover all models or is this...
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    desperate

    Mercuiser, bravo III, MPI. Forgot the model number but is a 2001 boat. Ran with drive trailered up then had a rhythmic thunk come from drive area. I removed the drive and found I couldn't turn u-joints without using a screwdriver. Rebuilt drive then was able to turn u-joints like they are...
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    rebuilding Bravo III

    Drive #Ow281446 bravo III Boat was ran with drive in trailered position and a rhythmic thunk kept coming from drive after that. Removed drive from boat and tried to turn u-joints and kept finding a spot where it would get really tight and i would have to use a screwdriver to turn the u-joints...
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    running like crap

    Evinrude v-6 175hp, E175EXEOM Optical Ignition System. This engine is just running really bad, checked compressions 105-115 on all cylinders. spark plugs all look good, pulled each plug wire at idle and they are all hitting. While doing full throttle it will run good for about a minute then...
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    overheat

    mercruiser, inline 4 cylinder 140. engine number B404271. overheats at full throttle. already replaced thermostat and pump impeller, pulled hose off of where it goes into the engine and there is water flow. Like i said, it only overheats at full throttle and takes a while to actually...
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