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  1. W

    3L cobra idling too high

    I'll have to consult the service manual on that one. Never messed with timing on an engine.
  2. W

    3L cobra idling too high

    I'll do that. Thanks. Do I adjust the Idle stop so it's just touching the cam without moving it?
  3. W

    3L cobra idling too high

    Let me know if these shed any light on things. Tha ks for the reply
  4. W

    3L cobra idling too high

    Thanks for the reply. A proper tuning of the carburetor is surely the right thing to do. But aside frim the mixture screw and idle stop there isnt really much that can be done to adjust speed, i gather. I was hoping to lean out the mixture a hair and get a small drop in RPM (like you can with a...
  5. W

    3L cobra idling too high

    Hi all, My 3L with cobra outdrive is shifting pretty hard. I shift with a firm, fast movement--no grinding. It's a pretty hard thunk into gear that you can feel, not just hear. Neutral idle is a touch above 700rpm. I've read 550-600 is ideal. My idle stop is adjusted all the way out and it...
  6. W

    20p6 Merc 6hp 4 stroke--runs on half choke, revs up and stalls

    Hi all, Just as the title says. Choke to start, then down to half choke or it won't run. After a few seconds it will rev up and quit. This is a fuel starvation situation, usually the carb, I know. Carb has been cleaned and it's spotless. Can't find a fuel leak anywhere. Could a weak or...
  7. W

    Trim pump rebuild

    Thank you, that's helpful. Pull the retract line at the cylinder or the pump?
  8. W

    Trim pump rebuild

    Will cylinder seals cause the pump to make screeching noises?
  9. W

    Trim pump rebuild

    I've got bleed down. And it's making a crazy erratic buzzing noise, like there's air in the system. I will test the cylinders but I'm pretty sure she needs some TLC.
  10. W

    Trim pump rebuild

    Hey all, I'm trying to track down what kind of trim pump i have because it needs to be rebuilt. It does not have the manual release valve on the starboard side but otherwise it looks like the one in the schematic below. Someone said it's a "showa" pump and what is shown in the diagram won't...
  11. W

    Winterization issue

    Thanks for the reply. Been stressing about this! My marine tech was talking about pulling the outdrive to make sure all the water got out of the pivot housing. People have me paranoid about every drop of water. I was filling with a funnel, no pump. Maybe I just didn't have enough pressure to...
  12. W

    Winterization issue

    Hi all, this is my first year with an omc cobra 3.0L 1990 and I'm winterizing. I'm following all the steps to drain block, manifold, etc. I backfilled everything with antifreeze at the engine, but when I was filling the manifold the antifreeze eventually backed up out of the hose and wouldn't...
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