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    Will water still flow if impeller is “bad”? The dreaded plastic bag aftermath

    Mercruiser Bravo 3 5.0L with raw water cooling and no thru hull intake so the engine went into “limp mode”. i was not on the boat when this happened. The low IQ gentleman who was in charge decided to keep using the boat. when i got the report of this event, i went to the boat to check it out...
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    2005 5.0mpi runs for 20 seconds

    Engine ser# OW003759. Starts for 20 seconds, then dies. Will not re-start. I have pulled codes (below) and am concerned about the fuel pump. Here is what I know: First - in the manual that I have it only has codes that go up to about 50; several of the codes that it is reading are above that. I...
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    Deutz Deisel air cooled

    overhead shot
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    Deutz Deisel air cooled

    only numbers i could find:
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    Deutz Deisel air cooled

    Okay, I have seen a few marine motors, but never heard of this one. It is in a 1973 cruise-a-home. it won't start, apparently some mechanic said it is the fuel pump. Thing is, I like to start with a manual and I can find NOTHING on these motors. There is a website for new ones but not helpful...
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    DPS trim cylinders not available

    This is a Volvo outdrive DPS-A. The trim cylinders are toast from corrosion- no it wasn't me who neglected them. Anyway, I have this boat to fix. The old part numbers are 3889954 port and 3889955 stbd. Volvo says the new part numbers are 22187385 & 22187386. And, they are back-ordered with no...
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    new 15hp mercury surging

    brand new 15hp mercury 4 stoke, electric start, remote controls. surges under a load up and down maybe 3-400 rpms at about 1200 or 1400 rpms (do not have tachometer installed). i have checked the tank vent, even took the cap off, new fuel, new tank, new fuel line, new engine. (less than one hour...
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    twin vs triple conversation over a beer or three

    so this isn't about money, efficiency, or even common sense- just a conversation that should involve us having beers while talking. I have a boat I am restoring, and will be re-powering with outboards. It used to have twin 351s & volvo outdrives in it, it will next have a bracket w/ flotation...
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    Suzuki DT85 year? cant find it!

    Pictures of serial number and engine cover attached. Sorry serial number is partially submerged and a bit hard to read. From what i can tell it is 8501 0207xxx. Looking online, it looks like an '80, but then searching for that year images the engine cover does not seem to match? I want to find...
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    yamaha tachometer harness help - deleted?

    I had a thread on here a couple of days ago regarding the harness needed to wire my Yamaha tachometer. It was here yesterday- with a couple posts to it yesterday morning. Now it is gone. why would it get deleted? it was just straight forward, useful information with a diagram. I came back here...
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    says "330 Mercruiser" on valve cover- what is this?

    So I cannot search this because the "330" does not register on the search. I am looking at a vintage (beater) Searay Weekender 30, direct drive, and it has engines that say "330" and "Mercruiser" on the valve covers. All I could guess is that the 330 represents horsepower...Are these 454s? As...
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    19' Olympic Hard Top... whats under the floor?

    I just bought this boat, it is a 1984 Olympic Hard Top. Pictures below. the floor has a couple "soft spots"; of course the sales man told me "that's how they all are". Not sure I Believe him but i bought it anyway. I want to do a couple test holes in the floor to see what the foam is like under...
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    How do you figure out new CG? I/O to OB conversion

    Re: How do you figure out new CG? I/O to OB conversion yes, those look like nice brackets. also was looking at Armstrong; aluminum. Trying to not to get ahead of myself though. The boat already has trim tabs, of course i have no idea if they work or not, but they seem like a decent...
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    How do you figure out new CG? I/O to OB conversion

    Re: How do you figure out new CG? I/O to OB conversion yes, building it that way is what i am wanting to do! so that's why i am asking some questions before i start. Stabicraft. in the San Juans and Bellingham area these area highly regarded as safe and 'stable': i am sure there are...
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    How do you figure out new CG? I/O to OB conversion

    So I did my searches, about 30 of them over the last few months. Alot of discussion regarding balance and how "you might get lucky". How can I try to take the luck, or bad luck out of it? it seems like there must be a way to figure out if I could get the CG close to the same place. For instance...
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    oil leak from missing plug? under #6 on block

    on a 5.7l vortec, on the starboard side, right below cylinder #6, is a hole that is spraying oil. before i just plug it, what is this for? it is maybe 3/8 to 7/16 in size, looks like it is threaded but i cannot tell for sure. engine shop tells me there is nothing there, but i can see it spraying...
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    please help me identify this mess... circa 1973 outdrives

    the boat is a 1973 Marauder 24 flybridge. i do not have the engines; i do have the bell housings, manifolds and risers, and the outdrives are still connected to the boat. what i want to know, from the pictures below, is: 1. what kind of outdrives are these? i see no numbers anywhere! 2. are...
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    305 vs 350 - educate me!

    i have done some searches- but the search engine does not recognize 3 letter inputs so not much that i have found. probably a subject that is beat to death, so maybe a reference to another thread... ?? i am going to repower a boat i have, with twin something. it had (2) 351s in it in 1973...
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    5.7 TKS will not rev under load

    Re: 5.7 TKS will not rev under load i did look at the advance initially at the dock; it was advancing with throttle. now it will not fire at all. i have an inline tester (see picture)- i remember the 'spark' that you can see in the tester being white before, now it seems very yellow/orange...
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    5.7 TKS will not rev under load

    Re: 5.7 TKS will not rev under load yes, checked with inline tester. checked firing order. remember, engine runs very well at idle and revs up fine with no load. sounds really good at the dock. good advice to slow down and review though. here is something i just found, while staring at it. it...
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