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  1. Bt Doctur

    454 MPI seawater impeller

    impellers only get like that from lack of water
  2. Bt Doctur

    Mercruiser 4.3 starter issue

    when it stops ,what happens if the turn the flywheel 2 inches? If it now catches and stops again you have damaged teeth on the ring gear
  3. Bt Doctur

    Trim pump rebuild

    a merc hyd pump can be fitted in there and with some minor relay work will do the same job
  4. Bt Doctur

    Boat reverse polarity

    or your extension from the house is backwards
  5. Bt Doctur

    Leak into bilge, bellows?

    an old control cable will work too ,its solid SS
  6. Bt Doctur

    lower unit replacement

    what broke? the bow eye, the nylon strap or the rusted cable or did someone remove the safety chain before the wheels were in the water
  7. Bt Doctur

    MerCruiser alpha 1 gen 2 tapping noise in lower half

    its the gen II type, to properly do what your doing and to preload the gears turn the unit upside down. those gearsets force the pinion upwards or use the tool to keep the driveshaft raised up by spring pressure.
  8. Bt Doctur

    Leak into bilge, bellows?

    Incorrect, main bellow is specific for Alpha and alpha gen I alpha has clamps at both ends, gen II uses 1 clamp and 1 sleeve
  9. Bt Doctur

    Lower shift cable tool - How to make your own

    I know its old but I wanted this to be with the shift cable tool area. We all know how difficult it can be to insert the lower shift cable into the bellow. working on a idea to make it a lot easier. A proto type will be sent to "Bondo" for evaluation shortly then a pic will be posted here Once...
  10. Bt Doctur

    marina says gimbal bearing was installed backwards?

    Even with drive removal ,replacing a gimbal bearing DOES NOT take that long
  11. Bt Doctur

    Looking for any suggestions

    next step is to hook up a remote tank (6 gal outboard type) to eliminate the tank and venting. Next is remove the fuel pickup tube from the tank and verify that there is no screen INSIDE the tube
  12. Bt Doctur

    Alpha 1 Gen 1 Upper Unit Hex Bolt Connecting Halves Broke Off

    try a product called Free-All it does wonders additionally you can drill 2 small holes right alongside the bolt to allow penentrant to get into the threads, this does not affect the strength in the housing
  13. Bt Doctur

    MC-1 165's. Drive install gasket question

    and with a bit of work those 292`s can be bumped up to around 300 horses each you would have to change the drive ratio to 1.47`s
  14. Bt Doctur

    Fuel System Question

    says epa compliant so I think its hooked to the vent line, maybe a whistle device to indicate a nearly full gas tank
  15. Bt Doctur

    Mercruiser 3litre LX coil mounting bolts

    A 3/8 or 7/16 12 point standard socket
  16. Bt Doctur

    Fuel tank lines mercruiser 3 litre lx

    should only have 3 fittings for fuel hose, the largest one is feed. guessing the red is 3/4 or 5/8 vent hose next to the fill hose (3rd pic) (4th pic feed) no AS fitting though
  17. Bt Doctur

    Shift Cable Adjustment

    also replaced the lower cable. Did you install it with less than 2 threads visable? Is the slide set screw just snug?
  18. Bt Doctur

    Trim Limit setting. 20deg?

    around 21-1/2 nut to nut
  19. Bt Doctur

    Commander classic shifter issues

    have a shifter available .check your message
  20. Bt Doctur

    Commander classic shifter issues

    sent you a message
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