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  1. K

    Mercruiser MR-1 leg goes down, nothing on up

    2Xs on Bbook83. I had a customer do the same thing, the outer jacket is pretty thin and is only exposed to 700 psi for lowering the drive. The fluid has to be able to return to the pump whichever direction the pump runs. The inner cylinder is 1” in diameter and the pump can deliver over 3000...
  2. K

    5.7 omc carb leak

    The bogging may be caused by the secondary air valve opening too quickly. Always have a spare alternator belt, fuel filter, points and condenser. Power steering fluid, motor oil extra 50 amp fuses. A good 12 volt test light. You probably have a marine band radio. I cannot think of any thing...
  3. K

    165 L6 Bushings need replacement?

    Rear mounts will settle over time. If the center core of the mount is even with the bottom of the housing they should be replaced also especially if you put a tapered punch it the bolt hole and can see the rubber separating from the core by prying it around.
  4. K

    3.0 Mercruiser Dies On Acceleration

    You may have a vacuum leak between the head and the manifold. With the engine idling squirt some motor oil on the gasket that seals them together and see if the vacuum changes. Also around the base of the carburetor. It is normal to have a slightly lower vacuum in the water than on the...
  5. K

    Mercruiser MR-1 leg goes down, nothing on up

    The original solenoid was a non grounded base Mercraiser #25661. Mercruiser# 65057a1 is a grounded base style. Both are for marine use. NAPA has a line of marine solenoids that will cross over.
  6. K

    5.7 omc carb leak

    All you need are basic tools that you already have. Of course a engine hoist. Once the engine is out run water through the exhaust outlets to narrow down where the leak is. Hopefully it just the exhaust and not the transom.
  7. K

    How to measure a Uflex M86 steering cable

    Remember that the cable has to be free enough to allow the power steering actuating valve to move in either direction.
  8. K

    OMC control from 71 SlickCraft, Dauntless V6

    The outboards for a short time had solenoids to move the shift rod in the gearcase. OMC electric shift drives had electro magnets as well as the outboards up to when the exhaust exited through the center of the propeller. The control you have can be adapted to any other marine application with...
  9. K

    How to measure a Uflex M86 steering cable

    Measure he length of the plastic jacket in inches then add 30 inches, round up to the next foot. That should give you the correct length of your present cable. Be careful because sometimes 1 less may not be enough.
  10. K

    Water in oil

    From the pictures of the surfaces I suggest that you replace the manifolds. If you do not then start saving for another engine in the near future.
  11. K

    5.7 omc carb leak

    The fuel leak may be caused by the 2 plugs that are pressed into the bosom of the float chamber. The fix is easy. Remove the carburetor and flip it over. Remove the throttle body and you will see the 2 plugs. Clean the area and roughen up the area around them and the plugs. With some JB...
  12. K

    Blowby through vent tube? Mercruiser 3.7

    One other thing to check, remove the breaker plate in the distributor to make sure that the centrifugal advance weights,springs and support pins are tight. If they should become loose then there will be an over advance condition that can cause damage. Delco inline distributor bodies are prone...
  13. K

    Stalling issue

    Remove the fuel suction tube from inside of the tank. There is a very fine screen filter inside of the tube. Remove the screen filter and pitch it.
  14. K

    5.0 swap to 5.7 what carb is the best

    Are the holes the same size or the rear are much larger than the front? 4 even sized holes are what the Edelbrock fits on and most Holleys. Large secondary are primarily for Qjets and some Holleys. Carburetor gaskets are all the same, marine/auto.
  15. K

    No water

    If you replaced the shift cable and did not remove the water pump then you may have not have connected the water tube correctly into the rear of the swivel bearing. As SD said go over what you did with the water pump. If you did replace the water then either the 1/2 moon key slipped or you...
  16. K

    5.0 swap to 5.7 what carb is the best

    Remanufactured Quadrajets @ Summit Jet-33004. 650cfm. Divorced choke. $419.00 Jet-33005. 750cfm. Electric choke. $419.00 Edl-1410. 750cfm. Electric choke. $545.95 If your manifold on the new engine is the spread bore style you will save some some money with the...
  17. K

    5.0 swap to 5.7 what carb is the best

    edl-1409 Edelbrock at Summit. $545.95. 600 CFM
  18. K

    Volvo Penta 5.0 GL-B does not go properly

    Get a jumper wire and connect the + battery to the + side of the coil then spin he engine and check for the spark. If the spark improves then try starting the engine, if it starts disconnect the jumper wire. It will probably be the main starter solenoid. Measure the voltage at the purple wire...
  19. K

    Volvo Penta 5.0 GL-B does not go properly

    The voltage at the coil is 12volts while cranking the engine? There should be a blue spark at least 3/4” from the coil wire to ground.
  20. K

    1974 seawirl ranger merc Cruze 4cyl

    How long have you had this boat? When was the last time you have known the engine to run? Does the distributor shaft rotate when trying to start? If yes remove the grey wire from the distributor or negative side of the coil leaving the black wire attached. Spin the engine over and with the...
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