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  1. K

    Stringer boot recommendations?

    OMC #313080. Sierra # 18-2767 is what you need. With some liquid soap or KY the boot can go over the drive, just remove the trim tab exhaust outlet which helps.
  2. K

    SX-A thread repair

    3/8x16” is the thread pitch. NAPA should have a Helo coil kit. Just to be sure thread the plug on a 3/8x16“ nut.
  3. K

    250CI MerCruiser Question

    Try with a test light or volt meter connected to the + of the coil and spin the engine, there should be full battery voltage in cranking mode only at this point. Also on the distributor side of the coil disconnect the wires and just reconnect the wire that goes to the distributor. If the...
  4. K

    1977 Ford 460 ignition

    You may have a marine distributor. You probably have a Prestolite distributor. If that is what you have points and the condenser are the same as Chrysler parts before they changed to electronic ignition. Also if the distributor does not have a vacuum advance on the side then it should be a...
  5. K

    Fuel tank suction tube removal

    That skin stuff you saw is common in older fuel systems. Sometimes it looks like very fine hair. The screen in the suction tube has to come out. The crazy part is if the gas in the filter tube is dried out you will be able to blow through it with your mouth, but with gas it will cause a...
  6. K

    yamaha 3.0 l4 blew head gasket help!

    Be sure to seal the head bolt threads with #2 Permatex or similar compound. Torque the bolts to 100.
  7. K

    5.7 Gi engine alignment woes

    Set me straight here, did you place the large flat washer over the studs then placed the engine on top of them? I hope not but if you did that then that is the problem.
  8. K

    5.7 Gi engine alignment woes

    I guess that since you have experience with Mercruisers you know how to swivel around the alinement bar inside the gimbal bearing. With the engine raised enough try completely removing the adjustable engine mounts to give more range of movement that may allow the alignment bar to engage the...
  9. K

    Manifold/riser 3.0 mercruiser

    Remove the spark plugs, disconnect the hose on the thermostat that leads to the manifold. Put the male end of your garden hose inside the hose turn the water on and let the water flow through the manifold. Spin the engine with the starter a few times, if the manifold is leaking water will...
  10. K

    Identifying my mercruiser gimbal housing and ring

    It will not be compatable with a V6 or V8 application. It will work with a 2.5 and a 3.0 as well as the style engine you have. The main difference is the centering boss that protrudes where the driveshaft comes through and centers in the inner plate.
  11. K

    5.7 Gi engine alignment woes

    Try using an engine hoist attached to the front of the engine and the front mounts with the nuts bottomed out. Then raising and lowering the engine while to get the alignment bar to engage the splines. I feel your pain as I have had a few that really tested my patience. If you do not have an...
  12. K

    4.3 diesling

    Also check that the throttle closes all the way and the idle speed is at the correct rpm.
  13. K

    Fuel pump issue

    Another place to check is the small filter in the carburetor inlet.
  14. K

    Fuel pump issue

    Where the fuel line is attached to the tank there is a fitting with with a check ball this is the anti siphon valve. Also a good time to unscrew the main fitting with the suction tube. Inside the tube there is usually a very fine mesh filter which needs to be removed and blown out, it is...
  15. K

    Not so good vibrations ,1989 4.3 liter Cobra

    You should have changed the gimbal bearing. If water got into the joints it is in the bearing also. There is a good chance water is in the drive unit also
  16. K

    Starter

    Stern drive engines are standard automotive rotation CCW. This is the engine’s rotation when viewed from the flywheel end. CW engines are usually in straight shaft inboard applications.
  17. K

    Alpha 1 Gen 1 Upper/Remote Shift Canle Help

    The shift control should move the cable 1.5” for forward or reverse. If you have a genuine Mercruiser control that is what you will have. If you have a generic marine control with extra holes on the levers sometimes you will have to experiment to get the required cable movement. Also if your...
  18. K

    SX-M Outdrive "Impossible" Removal

    If you have a sturdy table position the drive with the front down and the pivot housing just past the end of the table. If you have some ratchet straps use them to hold the drive in place or a volunteer to help you. Screw the 6 nuts on the studs just to the nylon finger tight. Using hammer...
  19. K

    Alpha 1 Gen 1 Upper/Remote Shift Canle Help

    Just be sure that the carburetor lever does not move before full engagement.
  20. K

    wheel bearing seals

    Just a word of caution about grease seals. Always check that the inner lips of the seal fit tight over where they are seal the water out. And of course that they are the correct size for the hub. Sometimes the seal surface on the axle shaft may have to be repaired with a Speedy Sleeve to...
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