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  1. Bt Doctur

    Merc 350 sputters, dies, won't restart after heating up

    Remove the fuel pickup tube from the tank, unscrew the tube from the 90deg fitting , remove the stent filter
  2. Bt Doctur

    Making sure I purchased the correct coil for a 1996 5.7L

    JB weld can fix that lol cold water on a hot valve will pucker it. But it could e worse
  3. Bt Doctur

    Cracked 5.7 engine

    did you probe the holes to remove the scale and rust clogging the drains? without draining and just pouring AF in the hoses is useless
  4. Bt Doctur

    Mercruiser 470 service manuals

    A few things to check remove dist cap, bring balancer to the 0 mark , watch rotor and turn motor backwards. Note how many degrees before the rotor moves. This will determine how much slack is in the tining chain and gears. Next verify #1 TDC . TDC and timing mark on balancer should agree. If not...
  5. Bt Doctur

    Belt length for 470 Alternator conversion

    contact the seller, I installed 2 of these but gave the paperwork to the customer...
  6. Bt Doctur

    Volvo Penta | Holley Carb Leak - Fuel Line Connection

    And tell the Butcher yo use the correct line wrench not vise grips
  7. Bt Doctur

    Is it the engine coupler that has gone bad?

    with motor off, shift into full fwd. prop should lock ccw. stand on a blade while someone watches the input shaft. Prop turns,shaft turns=coupler issue. Prop turns ,shaft does not= drive issue
  8. Bt Doctur

    4.3 electric fuel pump no power. Puzzled…

    testing voltage is fine but where are you testing for the ground side?
  9. Bt Doctur

    Serpentine belt pulleys

    Being a serpentine belt application if the pully moves, the pump or idler/tensioner is bad
  10. Bt Doctur

    Mercruiser 3.0 Exhaust Riser Leak / Compatibility?

    If you only have two threaded holes in the manifold you need a riser for the 3.0 LX It uses two bolts only
  11. Bt Doctur

    Alpha one gen1 water coming from lower shift shaft.

    that leaking from the top of the water pump ,slinger missing?
  12. Bt Doctur

    New lower shift cable

    If it was working before and now its not, recheck your installation. Did you bottom out the shift cable in the housing? Did you set the screw in the shift slide correctly? Does the shift slide bottom out in the housing? Is the guide sleeve threaded all the way into the outer sheath?
  13. Bt Doctur

    New lower shift cable

    You could tell us what your working on
  14. Bt Doctur

    Lower shift cable.....

    there nothing wrong with Sierra cables.
  15. Bt Doctur

    Alpha 1 Gen 2 Upper Seal Issue?

    Did you replace the small Quad seal between the units. I doubt is the upper shaft seals and no the drive comes off, apart and the seals push up and out from the bottom
  16. Bt Doctur

    Cooling engine - direct water hookup

    inlet and outlet reversed?
  17. Bt Doctur

    Substitute for part 862583

    the pully was made for a gm motor not mercruiser. Looks like a serpentine belt application
  18. Bt Doctur

    Circulating pump problem 4.3 Mercruiser 1993

    is the timing cover plastic? You may have a pump for a tin cover and it wont seal with a plastic timing cover
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