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  1. Lou C

    4.3L intake manifold drain?

    I guess you could just pull it to be on the safe side.
  2. Lou C

    Attwood Blower replacement in my '86.....

    https://www.pentair.com/en-us/products/residential/water-supply-disposal/marine/shurflo-yellow-tail-in-line-blower/sku/277-3110.html these are actually rated for continuous duty unlike most in-line blowers, I'll probably use one of these for my next replacement. My boat is on its 3rd blower....
  3. Lou C

    Volvo Penta SX-M drive Gimbal bearing obliterated and Gimbal Bearing Housing damaged

    That’s a shame because that kind of damage is easily preventable by regular maintenance. That means pulling the drive at the end of each season and checking for water in the D/S bellows and roughness in the gimble bearing and either looseness or stiffness in the u joints. Replacing the gimble...
  4. Lou C

    Draining engine block - Merc MX 6.2 MPI/Bravo 3

    Since I started using a 50/50 mix of Sierra PG antifreeze for my winterizing I have not found clogged block drains which I used to find in the past using -100 West Marine antifreeze. That stuff is also suppose to have corrosion inhibitors in it but maybe the Sierra has more because it’s...
  5. Lou C

    4.3L intake manifold drain?

    I have wondered about that too and the only thing I've see was a service bulletin from OMC that said that some 4.3 Vortec manifolds had cracked, so they felt it was necessary to drain that area. I have the pre-vortec and the manifold just drains when you drain the block drains and remove the...
  6. Lou C

    How in the heck do you get these spark plugs out??

    It sounds like OMC contracted with a company to cast these manifolds and then no one thought to see if they could get a socket on the spark plug! I noticed that the original design of the 2 piece OMC manifolds for the V6s was changed to give more clearance, the first few years they made them it...
  7. Lou C

    How in the heck do you get these spark plugs out??

    In a case like this where the manifolds overhang the plugs maybe a crowfoot wrench would work
  8. Lou C

    Is the bilge drain hole to small or am I stupid

    The vacuum pumps work well, my engine has the threaded fitting at the top of the dipstick tube and the vacuum pump will pump the pan pretty much dry in about 5 min. As noted above you could hook up a vacuum pump to this hose inside the boat and it would probably work even better since it pulls...
  9. Lou C

    How in the heck do you get these spark plugs out??

    On some of the Ford engines the manifolds do get in the way of plug removal, you may need to use a swivel ratcheting box wrench or similar. The plugs in my Chevy 4.3 V6 with either the OE OMC manifolds or the aftermarket Barr manifolds were always very easy to remove.
  10. Lou C

    Block draining idea for older Mercruiser v8

    Doing my winterize today. Here’s how my engine compartment door opens...
  11. Lou C

    Hard starting

    The gas will evaporate after a period of time and that’s what causes the extended cranking. I think changing to the newer PMGR style starters helps with this issue since they draw less amps and crank the engine over faster.
  12. Lou C

    2003 SeaRay 200 Bowrider seized engine????!!!!

    On my '88 F/W H-200 I have just enough room to get it out without spilling oil...or else I would have probably installed one by now lol!
  13. Lou C

    2003 SeaRay 200 Bowrider seized engine????!!!!

    I was tempted to pick up the Merc remote oil filter kit for the 4.3....
  14. Lou C

    Hard starting

    With the Holley 2bbl carb it will have an electric choke (see the flap on the top of the carb below) which should be closed with a cold engine and then as it starts it will open just a fraction of an inch. As the engine runs the electric heater will open it in approx 3-5 minutes. If its staying...
  15. Lou C

    Marine Growth Took Over.-

    Next time maybe have a visit from Mr Interlux or Mr Pettit before launching!
  16. Lou C

    5.0L 305 OMC rebuild

    The standard OMC Cobra is good to about 300 hp, a rebuilt marine 305 is not going to put out anywhere near that, keep in mind you can't go radical on the cam on a marine motor because of exhaust reversion, even if rebuilt with Vortec heads, a 4bbl intake and carb, you are talking like maybe 250...
  17. Lou C

    2003 SeaRay 200 Bowrider seized engine????!!!!

    I really want one of those remote filter mounts but the little orings worry me!
  18. Lou C

    OMC to Volvo Penta?

    Well to start: 1) keep in mind no matter what you do that transom will have to get rebuilt, no matter if you go to old style AQ Volvo, newer style SX Volvo, or Mercruiser. Volvo SX and Merc have the same transom cut out. 2) before doing anything, find out if you have people willing to work on...
  19. Lou C

    2003 SeaRay 200 Bowrider seized engine????!!!!

    It really depends on what the actual failure was. If the bearings burned up due to a lack of oil that's one thing but if it dropped a valve and it scattered debris all round the cyl that's another. Does this engine have a standard oil filter mount or a remote mount? Those can leak sometimes...
  20. Lou C

    new to winterizing inboard Mercruiser

    Judging by the questions you are asking I suggest that you get a Merc manual and follow the steps, there is a lot that can go wrong if you don't have the right information. For example, if you don't have closed cooling you should not be using method that sucks antifreeze up into the engine, you...
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