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  1. Bt Doctur

    1987 3.0L water in oil

    water thru the intake manifold? manifold cracked. exaust and intake ports in head 3, 4 cyl. rusty, head gasket blown between the 2 cylinders whats your location?
  2. Bt Doctur

    OMC 140hp with 400 stringer sterndrive lots of questions!

    2 separate motors and control buttons
  3. Bt Doctur

    Broken Spark plug

    No on the ex manifold ,just the intake manifold
  4. Bt Doctur

    Alarm goes off when key turns: Low Drive Lube Monitor

    And get rid of those Batwing manifolds before they start ;eaking
  5. Bt Doctur

    Alarm goes off when key turns: Low Drive Lube Monitor

    simply refilling the bottle DOES NOT mean your outdrive is full. You need to find out where the oil went to ,if the drive is already dry, just filing the bottle will NOT prevent drive destruction
  6. Bt Doctur

    Alternator questions

    The standard configuration is one system for each motor each motor has its own gauges .Charging systems are NEVER combined between motors.The only thing connected to both motors should be a Neg battery cable ,engine to engine
  7. Bt Doctur

    Alarm goes off when key turns: Low Drive Lube Monitor

    What drive? standard A1 use 80-85-90 Wt gear oil or the Hi-Perf green oil For a Bravo, the green Hi-Perf oil made for the cone clutch If after you refill it and the alarm silences it means the gear oil leaked out and you need to service the drive and repair the leak
  8. Bt Doctur

    Broken Spark plug

    have you tried a 6 point socket? If yes, and you stripped the hex, then the machine shop is your only escape drain the block and manifolds remove plug wires and dist remove intake bolts ,remove old gaskets, remove intake Per Horigan, remove the head bolts then remove the head
  9. Bt Doctur

    Difference Between VHF Antennas

    5101 is a center fed ant meaning it just a piece of coax inside the ant. low end type of ant although it does work satisfactory. The 5102 is a center fed 5/8ths wave with brass construction and is a much better ant with longer range The Shakespeare 5102 Centennial VHF Antenna is a mid-priced...
  10. Bt Doctur

    Still baffled

    could you have the wrong prop?
  11. Bt Doctur

    I have a leak.

    mostly caused by a damaged water inlet O ring
  12. Bt Doctur

    engine oil

    AAA+++ Rotella 15W 40 ,it has zinc for the lifters and cam
  13. Bt Doctur

    Aluminum water pump dam drain hole

    It`s there to prevent hot exaust gasses from being sucked into the pumps base.When your on plane that area only has your exaust gas and cooling water exiting the riser
  14. Bt Doctur

    Drain plugs on 1993 Volvo penta 740B -

    Can also install the mercruiser type with the blue plug
  15. Bt Doctur

    4.3 vortec Mercruiser..lots of questions

    where are you located?
  16. Bt Doctur

    Bellows Installation

    a slightly longer oil hose will help prevent breakage of the nipple
  17. Bt Doctur

    Bellows Installation

    1 good luck with that 2 get the pre-molded hose and 14 inches of oil resistant hose 3 down on the spring side 4 either will work, but bench is easier 5 reverse may not be obtainable 6 Yes 7 No ,hose friction will keep in in place Use clamp needle nose pliers to install it 8 on the bottoms away...
  18. Bt Doctur

    4.3/190 hp Chevy Vortec engine with Volvo drive on Glastron GX185 boat

    I service a pair of 5.7 Bluewater inboards with well over 2000 hrs
  19. Bt Doctur

    Leak when outdrive is up Merc 3.0 Alpha 1

    as stated , main bellows and shift cable bellows. shift cable bellow only can leak water, main bellow leak can destroy the gimbal bearing and outdrive from water intrusion
  20. Bt Doctur

    Manifold & Risers no longer available

    you started it dry and was ok, you added water and it didnt turn over, you let it sit overnight and it turned over, If this is correct your manifold/riser has a leak in it
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