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  1. wh1278

    Darn Green Elbow Gaskets

    I replaced my risers on my starboard 440...lower elbow, 6 inch extension, upper elbow...and used the OSC121 blocking gasket (FWC). These are the green ones from Thermoseal. I was told by calling Thermoseal that you shouldn't put gasket sealer on them, and sure enough they leaked. Not alot...
  2. wh1278

    Odd Rattling Sound

    While my 440 is at idle (and not in gear), there is a rattling sound like ball bearings rolling around in a can. It seems to be coming from the front of the engine. Getting my ear as close as possible without getting snagged by belts, it seems to be coming from the vibration damper area...
  3. wh1278

    Oil Pressure Relief

    I have read several older posts, but I still have this question. Both my 440's after rebuilds read higher than anticipated oil pressure. I first had them pegged at 80 psi, and discovered they rebuild guy put on single station senders on my dual station boat. I replaced the senders, but am...
  4. wh1278

    Oil on Valley Pan and Intake Manifold

    I have been seeing a small amount of oil puddling on the valley pan aft of the intake manifold. I am also seeing a small amount of oil on top of the intake manifold just port of the carb (Carter) in on of the recessed bolt valleys (but on the manifold). Could I have a cracked manifold. Does...
  5. wh1278

    Carbon Buildup two 440's

    I have two 440's that were rebuilt two years ago. Unfortunately the boatyard did not put the thermostats in when I got the boat back. So, the engines have been running cool the whole time, with mostly low rpm. Now I suspect carbon buildup as they both run rough, especially at start up. The...
  6. wh1278

    Compression Test Issue M440

    Hard running M440 at start so I decided to start with compression test. Removed all plugs and dist coil and went to first cylinder. Instead of a cranking, I got a constant "eeeeeeee" from the starter. No cranking. Checked the juice coming to the starter and it was just under 13 volts (not under...
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