Search results

  1. M

    mercruser 888 wont rev past 2000 when in gear in the water

    what is that a carb I know it is a weird question
  2. M

    mercruser 888 wont rev past 2000 when in gear in the water

    ok I will have to look for a 1.5 or 1.62 upper as it is the one that has the drive shaft driven at 16 teeth insteat of 24 and the drive shaft drive gear has 20 instead of 24 teeth which lead me to the wrong ratio of either 1.32 or 1.29 instead off 1.5. As for the boat being water logged is not...
  3. M

    mercruser 888 wont rev past 2000 when in gear in the water

    base timing 10 btdc 34 all in at around 2000 rpm ratio is either 1.32: or 1.29: so less than supposed to bee will that make a significant difference? thank you Mauro
  4. M

    mercruser 888 wont rev past 2000 when in gear in the water

    checked compression again just to be sure and all were at 145 and 150 psi so not bad at all. Spark plugs are white at the gap setter so am I running lean you guys might be right that I have a fuel issue maybe too small jets wrong power valve? or I guess fuel pressure too low I will have to test...
  5. M

    mercruser 888 wont rev past 2000 when in gear in the water

    Ok so I checked again 1 engine rotation will give me a little more than 3/4 of a prop rotation so sorry about that false info before. The sprocket in the oil chamber that is right after the u joints of the leg has 18 teeth is that correct? I thought that it was supposed to have 20 or 22 not...
  6. M

    mercruser 888 wont rev past 2000 when in gear in the water

    I have never seen that boat in the water before I bought it. it was supposed to be rebuilt engine sterndrive and all but then the guy passed away and when his friend sold it to me 3 years later every thing was all rusty inside the engine so had to clean every thing out and when it finally ran it...
  7. M

    mercruser 888 wont rev past 2000 when in gear in the water

    so do you think this is my issue
  8. M

    mercruser 888 wont rev past 2000 when in gear in the water

    oh and another thing for one turn ofthe engine the prop will turn about 1 and an 1/8 of a turn can you tell if this is the correct gear ratio maybe some body messed up there? any way appreciate your help Thanks a lot Mauro
  9. M

    mercruser 888 wont rev past 2000 when in gear in the water

    wow thank you a lot I will answer those questions from the top on down wards. The timing curve is the one with the silver springs it goes to 24 degrees advance at around 15 hundred. I loosened the dist hold down bolt while engine was running maxed out didn't make a difference was set...
  10. M

    mercruser 888 wont rev past 2000 when in gear in the water

    so far every body that i have asked cant explain why i have no power they all got to the end of their wisdom same counts for me
  11. M

    mercruser 888 wont rev past 2000 when in gear in the water

    no the original cam had the 351 firing order of 13726548. as for the prop do you think it is to big? I thought changing pitch by one inch only changes the rpm by 300 is that correct?
  12. M

    mercruser 888 wont rev past 2000 when in gear in the water

    what do you mean by that? is it possible to have a wrong cap? I rechecked the wires and they are going round the dist the correct way and correct firing order leading to the correct plugs. except if cylinder are numbered incorrectly is that possible on those fords? thank you for those replies Mauro
  13. M

    mercruser 888 wont rev past 2000 when in gear in the water

    so it will still run smooth if hoked up incorrectly? it does not back fire it purrs like a kitten just wont rev up no power
  14. M

    mercruser 888 wont rev past 2000 when in gear in the water

    The new comp cam has the older 15426378 firing order instead of the 351 firing order. It is suposed to put out around 200 hp with that cam
  15. M

    mercruser 888 wont rev past 2000 when in gear in the water

    I tried pouring in some fuel in the carb while it was at 2000 but made no difference it actualy even slightly staled
  16. M

    mercruser 888 wont rev past 2000 when in gear in the water

    three blade 21 pitch re pitched to 17 pitch mercruiser prop
  17. M

    mercruser 888 wont rev past 2000 when in gear in the water

    Hi guys I am back again, with still the same issue. My 888 wont go above 2000 rpm under load here is a list of things new on engine and its shape: new comp cam new comp lifters new comp pushrods rebuilt carb new pertronix electronic ignition distributor new coil new wires new spark plugs...
  18. M

    mercruiser 888 spark plug

    Perfect thank you
  19. M

    mercruiser 888 spark plug

    Hey all do you guys have any idea what spark plugs to use in a Mercruiser 888? Any help appreciated Thanks in advance Mauro
  20. M

    mercuiser 888 wont idle below 1000 rpm

    so did a compression test #1 160 #2 145 #3 150 #4 150 #5 150 #6 145 #7 150 #8 145 I don't know what to hold of the 160 Maybe carbon build up?
Top