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  1. K

    pressure in upper gear case

    # 2 Permatex on both sides of the stainless steel plate and on the mating surface where the pump housing mates to the lower pinion housing in to the bolts as before. Torque the 4 cover bolts to 35 lbs. Inspect the splines for wear, if over 50% are worn away you will need the following. ONC#...
  2. K

    AQ131A I'm at a loss

    Check post #3 and ascertain if there is a wire connected between the starter solenoid and the + side of the coil. If not add one. Is your boat a Bayliner? If it is then there is a very good chance there is no bypass circuit.
  3. K

    VP AQ280 operating instructions

    There is a kit available that adapts a Mercruiser drive transom plate to the Volvo transom plate hole pattern. You will have to google it. You will have to acquire the comparable Mercruiser parts from the engine block back. I cannot agree more on the classic lines of the older boats. The 1975...
  4. K

    pressure in upper gear case

    OMC upper gear cases must also be vacuum tested. Most times the outer seal area on the ball gear is the problem. If that is the the cause you will see small imperfections on the outer seal contact surface. The seal surface on the lower pinion shaft is a chrome sleeve that can begin to peel...
  5. K

    VP AQ280 operating instructions

    Which rotation propeller is on the drive?
  6. K

    AQ131A I'm at a loss

    Is the distributor rotating? In other words are you sure the timing belt is not broken? Look closely at the starter solenoid and you will see a male spade connection on the outboard side of the solenoid. Make up a #16 wire with a female spade then with a ring terminal on the other end connect...
  7. K

    AQ125 not going beyond 2000 RPM under load

    Sierra Marine has an electronic conversion which is better than points since the parts are not affected by moisture and the dwell is always steady. Sierra # 18-5292 For Bosch distributor #0231178017. Just check the number on your distributor.
  8. K

    Milky oil

    There is supposed to be a gasket on both sides of the plate, the small hole is a air bleed hole to the riser.
  9. K

    AQ125 not going beyond 2000 RPM under load

    If my memory is correct a 15X15 propeller should be on the drive. Volvo can have either a left or right hand propeller so be sure to get the correct one.
  10. K

    starter

    You need to closely inspect all the battery connections clean them, especially where the ground cable is bolted to the engine block.
  11. K

    Slave solenoid

    As for the coil look closely at the diagram that Chris posted as well as the starter wiring colors. I think that the wire mounting nuts on the starter are metric. Be sure to spray some penetrating oil on them before trying to wire in the slave solenoid.
  12. K

    AQ125 not going beyond 2000 RPM under load

    Did the engine turn up the maximum rpm before? Is the propeller the one that has always been on the boat? How long have you had the boat?
  13. K

    Fuel pressure loss on Mercruiser 140

    Try as dubs283 suggested and run the boat on a separate fuel tank like a 6 gallon outboard type. First run the boat until it starts acting up then quickly switch to the 6 gallon tank. Use the primer bulb. If the engine starts to do the same with that tank have some start squeezing the primer...
  14. K

    Fuel pressure loss on Mercruiser 140

    Just a question, is the vent hose between the valve cover and flame arrestor a formed 90* hose and there is not a PCV valve in the valve cover in place of the original open fitting? How long ago did this this symptom begin?
  15. K

    1993 Volvo Penta DP-D1.230 I/O Problem

    Try back flushing through the drive like you did before but try to stop the water from coming out of the intake, you may have an air leak at the joint where the lower gear case swivels or the aluminum nipple where water goes from that to the transom plate hose connection.
  16. K

    OMC 5.7. Totally frustrated

    With the engine running the voltage should be 7-9. If there is a NAPA store in your area try to get a new set of points and condenser. As SD said Float setting is critical. Does the carburetor appear to be the original carburetor on your engine?
  17. K

    OMC 5.7. Totally frustrated

    Did this problem happen before you replaced the ignition parts? Where did the ignition parts come from?
  18. K

    Oil pressure gauge

    The membrane in the sender may have ruptured, when that happens the sender goes to 0 pressure. Remember you have 50 year old pieces on your engine. Hopefully that is all that is wrong.
  19. K

    Mystery Engine Alarm

    Did the mechanic find the missing impeller blade? It could be blocking one of the manifold water inlets.
  20. K

    Running without muffs

    Go ahead and remove the pump and check it. If a blade came off the impeller you want to find it.
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