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  1. Scott06

    '98 Stingray 190LX 4.3 Merc Stuck in Muck Issue

    Do you have 12 v on positive side of coil when key is in run position? If not trace back to ignition switch where you are loosing power. If you do have 12 v then diagnose ignition system Yes compression of 120-130 should run. When you get down around 100 is when you start having dead cylinders
  2. Scott06

    replace or rebuild merc carbs

    You ve rebuilt it twice, but have you checked if there is contamination in yiur fuel system that would pollute a freshly cleaned carb? i would rebuild what you have unless the carb core is corroded or ruined mikes carbs has good quality rebuild kits
  3. Scott06

    '98 Stingray 190LX 4.3 Merc Stuck in Muck Issue

    The red switch is man overboard or kill switch . What you describe kibd of sounds like it is tripped. Try cycling it on snd off snd see if you get spark. also not gonna help if you cant advance throttle on a could start.that andtnhe choke helps richen the mixture
  4. Scott06

    Capacity Plate Information

    You may try contacting the Marathon Boat group? This is the modern company that came out of Grumman boats. Your boat probably would have been made at what is now their their factory in Marathon NY . link is to the history their contact info is on bottom right of page...
  5. Scott06

    Where are the rear motor mounts on a mercruiser 120?

    Oh if you have British cars you must know all the local towing companies already.... Seriously would be curious to see what it was when you figure it out.
  6. Scott06

    V6, Uneven water flow from the port side, right side is normal exhaust + warm water

    This is right, Kubaat don't over think it what you show looks fine
  7. Scott06

    Water in Bellows

    Spicer 5-3214X or equivalent (Moog 344) will fit the gen 2 with outside snap rings I don't think that gasket was the leak- would also have to have a compromised big quad ring to get water in from the gasket. Would double check the bellows again When you reassemble you glue the quad ring in...
  8. Scott06

    Water in Bellows

    would be about crankshaft level but have seen it.
  9. Scott06

    Fuel Pickup Barb Material

    I would use brass it is no issue corrosion wise
  10. Scott06

    Water in Bellows

    In addition to what was mentioned above - if someone left the bilge plug in and it was stored outdoors you can fill the bellows from high water in the bilge. I had some slight scuffing on my bellows on outside edge where it rubs against the gimbal ring and pivot pins. Was not quite through last...
  11. Scott06

    Engine Alignment tool goes in about 1/4 of the way, question.

    Knock it in with a driver around the outer race. I think a piece of 3" sch 40 pvc will work. If it is bottomed out you will see it doesn't move. Probably some youtube vids you can look at this has a decent picture of where the gimbal bearing sits vs the lip on the gimbal housing
  12. Scott06

    Where are the rear motor mounts on a mercruiser 120?

    But does it need to come out? Could be wrong but noise doesn't sound like a rod or main bearing.
  13. Scott06

    Over heating 1988 mercruiser 185 4.3

    Those hoses should be cold. They let a constant flow of raw water through to cool the exhaust regardless of if the thermostat is open or closed if they let too much water by the engine gets starved of incoming water and will over heat
  14. Scott06

    Bayline Capri, 1986, no condenser on my aq131a points

    Not sure what this vent cap looks like or if it is a welch plug but I would think you could JB Weld it back in
  15. Scott06

    Mercruiser 170 - Spark at distributor, not plugs

    Wouldn't assume because it is new it is ok. Button in cap needs to contact the rotor - if not you will lose spark in the beginning of this video there is a nice strong spark off a coil with points ignition - you have a nice blue spark like that? Note what he says about dwell vs point gap around...
  16. Scott06

    Mercruiser 170 - Spark at distributor, not plugs

    If dwell is way off you may be able to make a weak spark at coil but not be strong enough to go through rotor wires and jump at the plugs. the dwell measures the amount of time in distributor rotation that the coil is building up energy before it fires (points closed if i recall). If dwell...
  17. Scott06

    Where are the rear motor mounts on a mercruiser 120?

    Not a leap just spit balling. If you can support the end of the engine you can remove the front mount and pull the cover off, but I am not sure if you can re-isntall with out dropping the oil pan.
  18. Scott06

    Where are the rear motor mounts on a mercruiser 120?

    Outside of Philly myself Did u measure the lift on the valves ? Wonder if u have a flat cam lobe. I know y tightened rockers but wonder if you are getting full lift ? 3.0 uses timing gears might have wear and backlash ? Could probably check by taking cap of dist and move crank back and forth...
  19. Scott06

    2002 4.3L mercruiser

    Somewhere around 07-08
  20. Scott06

    Where are the rear motor mounts on a mercruiser 120?

    Doesnt sound like a rod or main knock to me. Might loosen up the belt and run it with out the accessories and water pump turning. Sounds more top end to me, hard to diagnose from keyboard but I wouldn't be tearing it out just yet.
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