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  1. K

    Everything done but low rpm at WOT. Distributor spring?

    I hope that your fire suppression system is in good order. If that carburetor should ever “flood over” you will have a fire. The carburetor is not Coast Guard approved. And as others have stated you need the correct one as Lou pointed out.
  2. K

    Everything done but low rpm at WOT. Distributor spring?

    Can you post a picture of your carburetor with the flame arrestor removed? Does this boat stay in the water? If so, how clean is the bottom?
  3. K

    Dribble of oil at prop, usual suspects checked, now puzzled

    Look inside the lower seal cavity in the upper unit with about 10 lbs of pressure. You can close off the transfer oil hole with a tapered wood dowel .Quite often the surface of the lower gear is pitted. If so then you will have to break it down and install a “Speedy Sleeve” over the pitted...
  4. K

    Shifting system

    It appears the shift interrupter is not engaging. Are the wires still connected? With the engine running try pushing on the lever where the roller sits in the “V” notch.
  5. K

    Can’t get on plane

    In regards to the tank also be sure to remove the suction tube internal filter. It is a conical shaped fine mesh filter. There is a very good chance that it can also cause starvation problems. You really need to have the carburetor looked at also.
  6. K

    High compression in 1 cylinder - 7.4 carb

    You need to read up on the procedure for breaking in the new cam and the zink rich oil that is needed otherwise you will be replacing the cam again.
  7. K

    Can’t get on plane

    Aside from the questionable carburetor, have you ever tried using a separate fuel tank? It is possible that is the cause of your problem. Follow SD’s advice on contacting Mikes. Look closely on the front of the carburetor’s main body, there is a set of numbers that identify which application...
  8. K

    Mercruiser Shifting Issues

    If you anchored the shift cable that comes from the control box that can cause a problem. It has to be able to move in bot directions.
  9. K

    Volvo Penta AQ131D getting hot

    If you are not removing the trailering support the drive will not lock down in reverse. You need to get a genuine Volvo service and parts manual. The threaded contact pad should have a thin stainless washer that keeps it from unscrewing.
  10. K

    Mercruiser Shifting Issues

    When the cable is pushed in it will hit the back of the flywheel housing, it then has to be pulled to the starboard side then routed up to the shift plate.
  11. K

    1988 350 Stumble Problem

    To really check the centrifugal advance is to remove the breaker plate and inspect the springs and weights for free movement. Sometime where the distributor is located water drips down and will rust the insides of the distributor. Of course checking the movement with a timing light needs to...
  12. K

    Alpha One 3.0 Starter questions

    There was an engine rear main change where the diameter of the flywheel got larger. These engine have a staggered bolt pattern. All engines before that had a straight pattern. Hopefully someone on this site can use your serial # to get you the right starter. Permanet magnet gear reduction.
  13. K

    1988 350 Stumble Problem

    If you can pass a stiff wire down and out the suction tube that will rule out any mesh filter, believe me I was once fooled by one and after using a 6 gallon outboard tank the engine went to 5k and held. We then switched back and the problem came back. You need to locate the numbers that are...
  14. K

    Alpha One 3.0 Starter questions

    Any idea what year your boat is? That might give us an idea which starter you need.
  15. K

    1988 350 Stumble Problem

    The Qjet that is rebuilt, is it the original carburetor? I hope so. When you punch it to get 4k rpm on plane does it hold or does it feel like it is surging and slowing? If so, if you gradually pull back the throttle from full does it momentarily surge ahead? When did this problem begin? When...
  16. K

    Missing transom bolt on Mercruser outdrive to bellhousing.

    If you are very lucky and the transom is still solid the bolts can be replaced. This depends on how flexible you are, what engine, the boat‘s design. Punch out the remains tith a slender punch, clear the hole with a 1/2” drill bit. Depending on what model you have you will need an anode bolt kit...
  17. K

    HELP I can't get my motor realigned

    Remove the top nuts on the mounts, with the engine hoist connected to the very front of the engine raise it then back the lower nuts down. Now raise and lower the engine to get the alignment bar into the sweet spot. Slapping the bar around is also a good way to get it in place.
  18. K

    Everything done but low rpm at WOT. Distributor spring?

    The 454 BBC that was in my 21‘ Taylor SC jet boat had a 750 Marine Edelbrock with the “A” cut stock impeller would hit 5k @60 with no problem from a standstill with no bogging. It was a bone stock 330 hp Indmar conversion.
  19. K

    Mercruiser Shifting Issues

    Since the shift slider travels to the rear for reverse in the housing sometimes salt residue or corrosion will build up inside the cavity. After you remove the drive be sure that the cavity is clean.
  20. K

    Overheating at idle

    Look inside the thermostat housing, there is a metered orifice which is the “by pass” when the thermostat is closed. If it is corroded shut the engine will overheat.
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