Search results

  1. jimmbo

    Quit on the Water!

    The 'M" is an OMC Trademark. The coils may have already been replaced, doesn't mean they haven failed. But now you have access and can meter them for Shorts/Opens, as well as inspect the Points. Coils that fail when Hot, aren't all that healthy when cold either. But heat them up with a Hair...
  2. jimmbo

    1991 20HP Evinrude no acceleration

    And some crude Machining done to the outer hub by the thrust washer. It too might need replacing
  3. jimmbo

    Quit on the Water!

    If the engine is a 1965 Fastwin, that is not what the Ignition system consists of Here is yours
  4. jimmbo

    Johnson 40 hp powerhead bolt oops

    Either fix it correctly, or repeatedly fix it incorrectly. I guess it all depends on how much time you are willing to spend
  5. jimmbo

    Evinrude 35 vs new Johnson 30?

    The 35 is indeed a Crank rated motor, and the 30 is a Prop rated motor. There is a 99.99% chance that they produce the same power. Even if there was a 5hp difference, that would be about 1mph less
  6. jimmbo

    looking for 66 StarCraft parts.

    Welcome to iboats Here is a Link that might help http://www.fiberglassics.com/library/index.php?title=Starcraft
  7. jimmbo

    Volvo penta 5.7 power problem

    What year? 2bbl or 4bbl?
  8. jimmbo

    Almost Sunk… where do I start to salvage boat

    Boat get swamped all the time. A few fluid changes, and electrical drying and get er running ASAP(preferably within 24 hrs). Starter will need some TLC later, but get it running and running warm for at least an hour. Then another Oil Change
  9. jimmbo

    1977 302.

    And a hell of a lot more Torque, than a 4.3 could ever make
  10. jimmbo

    Carburetor Issues, Dripping Carbs...

    What kind of float is in it? Hollow, shake it to see if you can hear any liquid inside. Solid, apply pressure on it to see if any fuel squeezes out. Or just get a new Float. Also a new Needle and Seat, and Gasket for the Seat, and make sure it is tight.
  11. jimmbo

    Higher elevation issues.

    Have you considered placing a Straightedge on the Hull to check for a Rocker?
  12. jimmbo

    1991 20HP Evinrude no acceleration

    The Proper Pitch is one that allows the Engine to run within the Engine's WOT rpm range, usually preferred to be in the upper half. To determine that, a Tachometer is needed. What is the Proper Pitch for a 14ft Car Topper, is not going to be the Proper Pitch on a 20ft hull.
  13. jimmbo

    New to iboats hello..

    Once you rebuild and reinstall the Carb, you have to make sure the Synchronization between the Timing Advance and Carb are correct. These are from a 50 yr old 3rd party Service Manual, one of the better 3rd party manuals
  14. jimmbo

    WOT rpm range

    Mercury has been making some of the finest Props for many Decades. In the 50s, 60s, and 70s, they were Leap Years ahead of the Competition.
  15. jimmbo

    New to iboats hello..

    First thing you Must do before running it, is to drop the Lower Unit and replace the Water Pump Impeller
  16. jimmbo

    OMC and Johnson powerhead question

    They are both Loopers. However they are different HP so, that makes pairing them up iffy. A lot of Parts in/on the powerhead could be different. That includes the Block, Carbs, Induction System, Exhaust Tuning, to name a few. A very thorough look at the Parts Lists of both will need to be done
  17. jimmbo

    What is wrong with my alternator

    Have you checked the Electrolyte Level in the Batteries lately?
  18. jimmbo

    Up or down when trailering

    If the Engine can be Imobilized by either a Lock, or Hydraulics, then up is fine, if the engine can bounce around, then a Transom Saver can be used. If the motor is immobilized, and I mean immobilized, by Locks or Hydraulics, do not use what now becomes a Transom Breaker
  19. jimmbo

    WOT rpm range

    I have found that within a given Prop Line, the differences in Top Speed are less than 2 mph, unless the rpm is outside the WOT Range. Switching Prop Lines, and that includes Brand, you will be starting with a New Anchor point
  20. jimmbo

    WOT rpm range

    If the engine had a RPM range of 5500-6000, the Rev limiter is not going to kick at 6000, it will take a few hundred more rpms before it does its thing
Top