Search results

  1. D

    Power steering jumpy at idle and slow speeds

    I wonder if any one would have an idea why the power steering on my 1989 5.7 OMC cobra would be jumpy when turning the wheel when at idle or slow speeds. Once the speed of the boat comes up the steering smooths out almost completely. My theory is that the PS pump is having a hard time keeping up...
  2. D

    Need some advice on how to use drive trim properly

    Need some advice on how to propery use the drive trim on a I/O. When I have the boat on plane and crusing at 3200rpm how can I tell when I have the drive trimmed for optimal performance?
  3. D

    Question about garboard plug

    I recently had the bottom on my 1990 Donzi GT250 painted. The garboard fitting was also painted. So today when installing the plug into the garboard fitting I noticed small amount of bottom paint on the edge of the garboard fitting flaking off. I didn't really torque the plug to extreme but made...
  4. D

    1989 5.7 King Cobra roller lifters or flat?

    Is there a way to determine if my 1989 5.7 King Cobra engine has roller lifters? Does anybody know? Thanks
  5. D

    OMC Cobra gear lube top off.

    I just changed the gear lube in my 1989 5.7 cobra drive. I followed the manual instructions by refilling the drive from the center plug. I installed 64 oz's of lube but in the process of getting the center plug back in I lost approx. 2 or 3 oz's. even at that the fill level showed up to the full...
  6. D

    5.7 cobra transom zerk fitting

    During spring painting of my drive on my 1989 OMC 5.7 Cobra I noticed that the zerk (0313607) fitting on the outboard starboard side of the transom mount was a bit loose. When I tried to tighten the zerk I find it will tighten to a point then go loose. This indicates to me the grease tube...
  7. D

    Oil viscosity for 89 350 King Cobra

    I have a 1989 OMC 350 King Cobra engine 270 HP 350APRMED and the manual indicates SAE30 engine oil. But many of my friends and a couple mechanics say to use SAE40 weight engine oil instead of the SAE30 weight. I live in northern Ohio and it can get well into the 90's in the summer here, but the...
  8. D

    Gear lube dipstick 1990 Donzi GT250 Cobra 5.7

    I was looking for a replacement dipstick for the drive upper case gear lube and in the process i noticed that all the diagrams show the dipstick for my drive with the gear lube level mark towards the bottom of the dipstick. My old dipstick has the fill level mark on the dipstick towards the top...
View older results
Top