Recent content by tystick

  1. tystick

    coil / heat sensitive

    I have heard that coil can fail under heat yet be fine when cooled. Is this a rare symptom and/or not really.
  2. tystick

    trim reservoir leak

    trim pump reservoir seems to be slow leak from top edge of where the side and top plastic reservoir join not sure about repair or replacement 1990 4.3L merc w/ alpha 1
  3. tystick

    ignition module systems

    what are the symptoms of a tempermental ignition module? i have a issue where the boat starts and runs fine but when returning to dock and idle will stall and refuse to start until later when cooled down then will start again mechanic said this sounds like the merc ignition module is...
  4. tystick

    stalls when warm

    1990 merc 4.3 L with alpha 1 starts up and runs beautiful until returning to dock - will stall when shifted to neutral or slowing down to idle will not start again until cooled down then will start up great again gas to carb - cranks fine - seems like no spark when warm only after returning to...
  5. tystick

    fogging

    does fogging require replacing plugs?
  6. tystick

    carb rebuild question

    what usually goes bad inside the carb that would require that the carb be rebuilt. is there a troubleshooting list for this?
  7. tystick

    interrupt switch

    does anyone have a pic of the switch plate / interrupt switch they can post? 1990 merc 4.3 L w/alpha 1
  8. tystick

    yoke seal replacement

    1990 Merc 4.3 L w/ alpha 1 while reassembling bearings, drive gear and seal, how is the alignment done with respect to each other? before torquing locknut, bearings have to be aligned with hose clamp - Question: how critical is the alignment as it spins at serious rpm?
  9. tystick

    fuel pump compatibility

    will a carter fuel pump part #CARM60159 fit a mercruiser engine that calls for a #862077A 1 ?
  10. tystick

    4.3 Merc will not start

    1990 merc 4.3l with alpha 1 drive I was cruising out from dock when at slow speed (no wake) i hit a sand bar and stalled out and would not start - Engine will crank / turn over but will not start. :/ I do not see gas going into carb - I tried pouring gas in but that did not help. I have a...
  11. tystick

    alpha 1 upper / lower assembly

    I have read thru archives and merc manual on this but need clarification: prop is not properly engaging - remote shifter will move forward but will not go in reverse - shift cable is ok - shift coupler is in forward position - Does the lower shift shaft have to be rotated to a specific...
  12. tystick

    RPM''s for Mercruiser 1990 Alpha One 4.3L 175HP

    I have exact same engine and 4800 is max. rpm What size prop? It sounds like you may haveincorrect pitch and/or dia. It should be at least 13 3/4 x 21 accordind to spec. I do not think the nick on prop would reduce rpm.
  13. tystick

    bellows 101

    What is purpose of the various bellows ? ... - to keep out water from parts that require flexibility? What are alternatives and how would they work?
  14. tystick

    alpha

    [No message]
  15. tystick

    exhaust shutter 4.3L

    1990 merc 4.3L<br />After reading archives, there is mention of the 4.3L having problems with shutters not working.<br />I have possible issue with shutters. I stalled out coming into dock for no apparent reason. Are they prone to wear out?<br />Are they servicable item? They look like easy to...
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