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  1. K

    81 omc sterndrive

    Early OMC 400&800s had hydraulic shift with an oil pump in the lower gear housing. Then they went to non hydraulic. The shift converter‘s for the drives operate opposite if my memory is correct. If your drive has the hydraulic system, disconnect the shift cable from the throttle control on the...
  2. K

    Engine issue— Mercruiser 5.0L, 305, 2 barrel mercarb

    Try running the boat with the engine cover open the same exact way to see if it continues running. Or with the bilge blower on. It could be that the heat from the non jacked exhaust manifolds are building enough heat in the enhine cover to cause vapor lock or boiling the gas in the carburetor.
  3. K

    Weak spark, no start after bump in road 86 OMC 4.3

    NLA Marine205 984 4400 has a used distributor for $160.00 that has the original ignition points and condenser. Part # 0986060. This is your only solution to thee problem.
  4. K

    Mercruiser 3.0 won't throttle up

    You need to get a feeler gauge and set the points @ .016-.017. Good that the springs are working. However how much will he points open and close by pushing sideways on the rotor shaft? Point gap effects timing and trying to compensate with a timing light and moving the distributor is not...
  5. K

    Flooding 1976 OMC 175

    Make sure that the tiny air bleed holes in the Venturi body are not plugged up.
  6. K

    Mercruiser 3.0 won't throttle up

    With the distributor cap off and the points rubbing block setting on the flat side of the rotor shaft can you move the rotor shaft enough to create a 1/8”-1/4” gap in the points?
  7. K

    1972 Mercruiser 165.

    Both 250 & 292 in line 6’s that came from a truck have the extended tab on the starboard side of the timing cover. A passenger car engine block will work after making an extension to the mount along side of the pan rail.
  8. K

    Weak spark, no start after bump in road 86 OMC 4.3

    Petronics ignition are not compatable with OMC esa systems. The 2 relays you posted showing are actually for the power trim/tilt. Sierra # 18-5277 tune up kit. Gap the points at .017. 1 877 663 8396. This will get the esa system working if all the limit switches are working and connected...
  9. K

    Mercruiser Neutral Safety Switch?

    Post a picture of the control box.
  10. K

    salt water in single cylinder

    Be sure to spray some rust penetrant into the cylinder and exhaust port. Do not test the compression until the engine has ran and warmed up. I am sure that there is no damage as you caught it right away. It is normal to get small amounts of rust on the valves and seats from not fogging before...
  11. K

    MC-1 Drive Dog failure?

    The 3M product is for gluing the rubber to the edges of auto doors. A K A Gorilla snot.
  12. K

    MC-1 Drive Dog failure?

    The water entered the bell housing through the large rubber seal that was not glued inside of the bell housing. You must use 3M or the equivalent to hold the seal in place otherwise it gets dragged out of place and you will not know it, sometimes water will come into the boat. From the picture...
  13. K

    99 Volvo 5.0GL

    The quality of the ignition parts today is a Chinese joke on us. Convert the ignition to a Petronics system. Sierra # 18-5239 kit. 1800 663 8396. Call them to check if that is the kit you need.
  14. K

    Broken console to control shift cable

    Try to post a picture of the control box.
  15. K

    99 Volvo 5.0GL

    Does your engine still have breaker points or is it electronic Ignition?
  16. K

    MC-1 Gimbal bearing snap ring.

    Be sure to glue the large sealing ring in the bell housing and let it dry good. If that seal slips you will get water in the bellows and through the breather hole in the gimbal housing. Setting the trailer so that you do not have to lift the drive is a very good idea if you do not have a hoist...
  17. K

    MC-1 Gimbal bearing snap ring.

    The plastic liner and shims was used in up to the early 70s. You do not need the snap ring anymore.
  18. K

    Won’t Start in the Water

    Try starting the engine and warm it up at home before leaving for the lake. This way you know it will start. I always started my boats up before heading to the launch.
  19. K

    1968 tilt/trim leaking by

    If you raise the drive all the way up does it stay or does it slowly go back down?
  20. K

    1968 tilt/trim leaking by

    How many hoses are on the rams?
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