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    Mercruiser 165 rust in intake

    Hello, I picked up a 165 to rebuild for fun with my boy as well as to spare the one in our boat. When I picked it up it has 140 compression on all cylinders, milky oil, but ran. When I broke it down with him, we found rust in all the cylinders, heavy rust on the intake and head (not a typo)...
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    Mercruiser 470 3.7 180 Blowby

    I have a 180 (basically same motor as a 470) I rebuilt a few years back. The motor was tight with a cold compression of 152 psig on 4 clicks when fresh. I had an episode with the wrong float supplied in the carb that was flooding out the carburetor and intake enough to kill the motor, in...
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    Mercruiser 3.7 Quadrajet Flooding Out - Help I am 11 months into this!

    Hello, After rebuilding a 20' cuddy, 3.7 L 190 HP engine, and outdrive, last step was the quadrajet carb (17083522) as the idle pickups were plugged up. I also replaced the fuel pump (with the thick gasket) bottom down bowl. On rebuild, I flooded the carb out something fierce. I figured I...
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    Help with proper float level on 488/190

    Just got done with the rebuild on a quadrajet. Now I have an issue as the factory manual states float level of 3/8" bt the rebuild kit states 7/32". To further complicate this, the factory manual states it is Rochester part number 17083522. The Caribs stamped 17074248, and I am good friends...
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    Wondering if God Hates My Boat - Mercruiser 470/3.7 Idle/overheating issue

    After 5 years of rebuilding my engine, outdrive, replacing my stringers, transom, and deck, I thought I was done with my boat. Wrong. Took the boat out today after being winterized for around 11 months. The boat was overheating slightly before (no issues with heat gasket/timing/ignition), but...
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    Attaching Swim Platform

    I've got a 20' Imperial cuddy cabin that I just got done building a mahogany swim platform for (60X24). I am planning to use 6 two inch angle brackets to support this to the transom of the boat, and use 4 1" stainless bars at a 45 degree angle to attach the outer support to the boat. For the...
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    HELP: Mercruiser Alpha One Outdrive Water After Reseal

    I have an 1988 Mercruiser Alpha One MR. I have resealed the upper and lower short of the prop shaft seal and seal on the shaft of the ujoint. When I pressure tested, I sprayed soapy water on these seals and did not see bubbles. I've pressure tested (held 14 psi for 2 days) and vacuum (6"...
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    Small hole in Alpha one MR Upper - what is it?

    Folks, Just finished resealing a 87 Alpha One MR upper and noticed a small hole nearly opposite the vent hole in the upper unit, about 1/16" in diameter. I've searched the forums and the web, and can't find anything on this. Is this a vent hole for the upper unit, or is this a machining...
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    Resealing Mercruiser Upper - Need to Recheck Rolling Torque?

    Hi, I've got a 1987 Mercruser Alpha one MR that I have changed all the oil seals/bushings on short the two located in the upper outdrive housing. I am planning on replacing the two seals following disassembly. My question centers around needing to reshim/check rolling torque - if I am...
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    Yay or Nay on Layup - Pics

    Hi, Just finished my first fiberglass job, and unfortunately it is not turning out the way I'd hoped. I'd wet all the 1708 biaxial bias ply fiberglass out, but the weather was around 60F and I ended up with glass that had been wet out bubbling a bit (I did not think I needed the plastic wrap -...
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    Layup Help

    Working on a resto for a 1988 Imperial 200. I just got the port stringers glassed in today (15' on a 20' boat), but am relatively unhappy with the amount of bubbles I got in the 1708. I tabbed in 3/4" marine plywood with 6' of 1708, and then followed with another complete wrap of the stringers...
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    Questions on Fiberglassing New Stringers in

    Hi Folks, I purchased a project boat planning on having a motor rebuild be the extent of the work. Of course, the 180 HP rebuild was ready to go in and I decided to check the transom "just in case." 8 weeks later, I've got the transom out, a false skin built for the new transom (I am going with...
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    20' Imperial Cuddy - Transom and Stringer Replacement

    Hi Folks, I purchased a project boat planning on having a motor rebuild be the extent of the work. Of course, the 180 HP rebuild was ready to go in and I decided to check the transom "just in case." 8 weeks later, I've got the transom out, a false skin built for the new transom (I am going...
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