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    Questions about running 1991 Chevy 4.3 omc

    Ahh ok how about just running it without the load then to put it blunt, I'm not 100% confident in my engine rebuilding skills 😂 and wanted to just run it idle and maybe get it up to 2k rpm for a while let the engine run to temp and check that everything works as expected. That's not to say I...
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    Questions about running 1991 Chevy 4.3 omc

    Hey everyone first time poster, I have rebuilt a cracked block 91 4.3. built ground up. Pistons rings, cam, new used block everything checks even turned the engine over ran for less than 5 seconds before shut her down. Question I have is what it's winter here in lower Michigan and really want to...
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    Rebuild of a 3.7 180hp mercruiser have questions

    well engine is completely torn down. all major parts are out of the block most everything is getting cleaned up or cleaned already. about to start to put it back together. starting to get the list together of parts that I'm going to replace and ones that I can reuse. this project is more of a...
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    Rebuild of a 3.7 180hp mercruiser have questions

    i said that from the first post lol but i did not know that i had to put a zero when i put it in ;). so that explains what i have. now onto the pushrod issues every pushrod i have is the same length and have no colored dye on them does that mean i can just get new rocker arms/rods with new...
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    Rebuild of a 3.7 180hp mercruiser have questions

    yes its def an aluminum block head is def iron Yes definitely an aluminum block cast head here is a few photos the one serial is stamped just behind the main front engine mount. I cannot find any thing that resembles a serial number that Mercury has in their parts catalog for anything close to...
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    Rebuild of a 3.7 180hp mercruiser have questions

    also S/N plate is located on the opposite side of the heat exchanger rear of engine well i guess rear of engine if its sitting in boat lol
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    Rebuild of a 3.7 180hp mercruiser have questions

    from what you say this makes me feel like were talking about different engines. because all of my push rods are the same length... here is the serial number of the engine its stamped on a mercruiser plate C336266 i was told the engine was 180hp from what i understood the 3.7 180 up to the 190hp...
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    Rebuild of a 3.7 180hp mercruiser have questions

    yes it is i got the boat for free and really just took it on for something to do over the summer no rush on rebuild or anything not even worried about how much I put into it. its more for the experience of doing it than anything else to see if I can get it running. its already set up for the 1...
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    Rebuild of a 3.7 180hp mercruiser have questions

    Morning all long time lurker first time poster. I have a quick question about a rebuild that I'm a quarter of the way through. Question I have is what can I get away with just cleaning up if it's not broken when it comes to a rebuild currently I'm getting new pistons, seals, most gaskets if not...
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