Search results

  1. stresspoint

    Throttle spring on 1981 Mercruiser 120. Courting disaster

    when the spring is hooked up correctly there is not enough tension on the throttle lever on the carb to pull the control lever back to idle , so you do not have to hold the lever all day when riding. . the spring is a safe guard if something breaks to stop the motor goin WOT as yours did. the...
  2. stresspoint

    Throttle spring on 1981 Mercruiser 120. Courting disaster

    i believe there is no way the throttle can go to WOT unless the cable breaks close to the carb or cable falls off the ball on the carb lever. ? what am i missing here ?? , as the spring you speak of is designed to pull the butterfly's to shut if either of the above happens. pics of what you are...
  3. stresspoint

    Hull cleaner

    it will melt your hull to liquid !.(y),yea as posted , give it a try , ? what can go wrong :).
  4. stresspoint

    Project unknown

    ha ha , you could call it home made IE: a HM floater or the like. that said , it looks as if it could be an early Hallet as i said before , but upon closer look i think not as it is too vertical in the sides.
  5. stresspoint

    Project unknown

    possibly an early Hallet.
  6. stresspoint

    Mercruiser 4.3LH backfiring & weird timing

    for the cost of the heads to be done V the cost of a reman motor + the work to R&R the engine from the hull. i know the way i would go :). have the heads done and stick it back together . if you are good with a hone you can get rid of most of the glaze that it appears to have on the bores (or...
  7. stresspoint

    Upholstery Question 1

    that is how i think they have done my back rests , PIA as i cant bend like a pretzel to get a spanner on the nots to get them. my boat is stored for winter ATM , as soon as i get to it i will check for Zbrackets and update your thread with pics or description, that way your thread will help...
  8. stresspoint

    Upholstery Question 1

    on my 1999 Maxum SR 1800 it appears to have studs that come out of the backing of the back rests and held with nuts , it really does look like the back rests were put there when the deck was off the boat so i did not force the issue to take them of when i was restoring the boat. i may have to...
  9. stresspoint

    Upholstery Question 1

    yep , before the deck was attached,
  10. stresspoint

    Mercruiser 4.3LH backfiring & weird timing

    even although i can do heads myself ,i always find it best to send the heads out to have the valves and seats done . the head guys also set up the guides , inspect springs for tension and surface machine, while they have them, get them to crack test and inspect the exhaust ports for soft spots...
  11. stresspoint

    . . . and I Thought Hi-tech Boat Engines Were Bad . . .

    have you by any chance had a AM head deck fitted or some PO had one and then went back to the original to sell the car ???.
  12. stresspoint

    Mercruiser 4.3LH backfiring & weird timing

    it could be a combination of that dodgy area of the valve and or broken rings. the piston looks to have a bit of detonation but its hard to say with the pic ,it could just be carbon build up ??. broken rings can show no comp when oil is put in the cylinder , but lets not get to that yet. i...
  13. stresspoint

    . . . and I Thought Hi-tech Boat Engines Were Bad . . .

    sometimes you need to buy OEM battery or a substitute with the same output, a friend went through this recently with a Toyota keyless start, it would not work at all ,i told the owner to replace the battery in the fob , owner replaced battery with a generic one , and had the same issue as you...
  14. stresspoint

    2004 Mercruiser 3.0 Won’t start, misfires & runs rough when starts.

    i usually set V8 or V6 motors to 750 or close too , OP s motor may need 650. 100 RPM either way when you are going for smooth transition between shifts is not really relevant , i have a hand held digital tach that i rarely use as i go after the smooth shift rather than being pedantic about a...
  15. stresspoint

    2004 Mercruiser 3.0 Won’t start, misfires & runs rough when starts.

    that's good news that its running well , now you need to set the timing """as per the manual """, if the dizzy was not moved then you probably ???? have the correct timing already ,so best let sleeping dogs be sleeping and not touch it now ( maybe check and see if it is as per manual but don't...
  16. stresspoint

    230A condenser failure

    check the ballast resistor OHM reading if you have one on that system , or if you don't have a resistor coil , then you need to replace what you have with a resistor coil. OR replace the resistor coil you have with a new one because the primary circuit has had a melt down and pumping too much...
  17. stresspoint

    2004 Mercruiser 3.0 Won’t start, misfires & runs rough when starts.

    do the above procedure , make sure the rotor is pointing exactly to #1 lead / pin on the cap when that balancer pointer is @ TDC on compression . the dizzy may have moved and making all your wires misaligned. i would still be redoing the leads both plug and cap ends from scratch jusst to be sure...
  18. stresspoint

    2004 Mercruiser 3.0 Won’t start, misfires & runs rough when starts.

    best bet is you firing order was messed up somehow . go over the firing order again , the best way i have found to tell people is to pull all the leads , crank the motor , mark an arrow on the dizzy if you want , this will insure your are placing the leads in the correct direction. find TDC...
  19. stresspoint

    Mercruiser 4.3LH backfiring & weird timing

    have you done a quick stop test and pulled the plugs to check burn patterns , that can be done during comp testing if you choose. turn the key off when running WOT or at the point its backfiring.
  20. stresspoint

    Mercruiser 4.3LH backfiring & weird timing

    i don't see any mention of a compression test. a couple of mushroomed valves will cause a backfire and timing to need advancing to achieve proper acceleration. lifters pumping up under acceleration or worn camshaft lobes can also make a engine run sloppy under load. looks as if you have been...
Top