Search results

  1. I

    Insanity Pylon!!

    Hi there! Just insalled a insanity wakeboard pylon(Ratchet strap type)to my boat. Its a v hull boat with an mercruiser inboard 4.3 v6 with engine at rear. Can anyone tell me the best position for the pylon ie. as close to the front as possible or in the middle of the boat??? we have got it...
  2. I

    Idle mixture screw

    Hi!! Can any one tell me what the long screw with a spring and locking nut on the front of a 2bbl mercruiser carburettor is for.Its at the bottom of the carb just above the base.Im trying to find the idle mixture screw. cheers!!
  3. I

    Mercruiser 4.3 vibration

    Hi! I have a 4.3 v6 on a 18ft speedboat. When in nuetrel and at low revs in gear theres a vibration traveling through the hull. Its a 1990 model and the engine seems to be running sweet. Iv changed fuel filter,spark plugs and cleaned the air filter and greased the gimble bearing through the...
  4. I

    alpha 1 gen2 alignment tool

    Hi there1 Can someone tell me the dimensions of a alignment tool for a alpha one gen 2 2 for my mercruiser 4.3 (1990) as i want to get one made up as they are expensive in the uk. cheers guys
  5. I

    Mercruiser Feels Down on Power

    Hi there!! Would a dirty air filter/spark arestor and corroded distributer contacts cause my engine to feel slightly down on power?? Its a mercruiser 4.3 carbed version. cheers ian ash
  6. I

    Stainless steel prop question

    Hi there im thinking of buying a stainless steel prop for my speedboat. Its a 19ft v hull with a 1990 4.3 mercruiser inboard and alpha one gen 2 sterndrive. At the moment its got a 21 pitch alluminium prop. As we use the boat for mono skiing im looking for a bit more pull off the mark. Does...
  7. I

    Mercruiser 4.3 gear selecting

    Hi there I have a 1990 mercruiser 4.3 v6 with a alpha one gen 2 stern drive. Is it normal to make a crunching noise when selecting forward and reverse gear??? Its doesent last long just a sharp crunch then its in gear. Cheers Guys
  8. I

    Lost Pin Exhaust pipe

    Hi there Iv had a nightmare today whilst changing the exhaust shutters on mt 4.3 mercruiser.I stupidly droped the pin that holds in the shutters down the exhaust pipe ie.y piece.Tried always to get it out with no joy.I can feel the pin with my finger in the water outlet on the alpha one stern...
  9. I

    Mercruiser shutters (Again)

    Hi there !! Thanks for all your advise in previous post (Same topic) But Im having trouble finding a set of exhaust flappers in the uk, For a good price anyway!One price iv had is $100 equivelent, every thing for mercruiser realy expensive over here in uk. Anyway does any one know the...
  10. I

    Mercruiser 4.3 Ratteling noise

    Hi there i own a boat with a 1990 4.3 mercruiser inboard engine and alpha one stern drive.When running her with mufs on today i noticed a ticking,knocking noise that seems to be coming from the bellhousing at the rear of the engine(whare the shaft goes through the hull).The noise is eratic at...
  11. I

    HGE manifolds and risers

    Hi there!!! Has anyone ever come across HGE manifolds and risers for a 4.3 v6 mercruiser.Im thinking of buying a set and wondering if they are any good.As cant afford proper mercruiser set . cheers ian ash
  12. I

    Cracked manifolds

    Hi there im new to the forum and just like to say hello!! I have a 1990 4.3 mercruiser inboard which i failed to winterize properly.As a result i know have 2 cracked exhaust manifolds ouch!!!:mad:I removed the drain plugs on the block and risers but didint realise i had to remove the pipes on...
Top