Search results

  1. jimmbo

    1400 RPM loss from 13 to 15 pitch!!!

    Vesselview? For a 800-900 rpm difference with a 1" change in Pitch, and only 1mph difference in speed, one prop is blowing out. I will suggest you get your engine Rpms from a Tachometer
  2. jimmbo

    1400 RPM loss from 13 to 15 pitch!!!

    If you had gained 800-900 rpm, even with a 1" drop in Pitch, the boat would be going much faster than it did with the 14. The prop is blowing out, or your tach is having issues
  3. jimmbo

    1400 RPM loss from 13 to 15 pitch!!!

    It is not Malarkey. Either something you did, or haven't told us about, has delivered the results. It appears one Prop has serious Blowout Do both props have the same Hub/Tube Diameter? Is any kind of Ring that closes a gap between the Case and the Prop required?
  4. jimmbo

    RPM Too High?

    You have that backwards
  5. jimmbo

    RPM Too High?

    Make sure you know what the Recommended Rpm Range is. If it is 4400-4800, then you are a couple of hundred over, and you will need to add an extra inch of prop. However most Prop Lines use a 2" difference, so you would be looking at about a 400 rpm drop, which puts you in the center of the...
  6. jimmbo

    1968? Mercury 350 2 stroke.

    Welcome to iboats Based on the Merc 350 Decal on the upper Cowl, and the lower Cowl cover, I would say it is a 1969. Before you go firing it up, there are a few things you should do. First check the Compression, and the Lower unit for Oil and/or Water. I would drop the lower unit and replace...
  7. jimmbo

    Damage During Winter Storage

    One would think a Paid Storage Lot would have some Security patrolling the Lot looking for signs of Vandalism/Damage. I suspect the Operators were more concerned about counting the Cash...
  8. jimmbo

    Damage During Winter Storage

    Let the Lawyer read the Contract, it being written in Legalese
  9. jimmbo

    Damage During Winter Storage

    Welcome to iboats I would speak to an Attorney regarding the Marina's Liability. Unethical Businessmen, of which there are many, will always try to Weasel their way out of their Responsibilities. If you take them to Court, also go after them for your Legal Bills as well
  10. jimmbo

    Outboard Mounting Height

    A Prop designed to run partially submerged will be fine at that height
  11. jimmbo

    Propeller

    I have been Fortunate, I have never had an Engine that had Rev Limiter. They can certainly interfere with prop selection
  12. jimmbo

    Water coming from spark plug hole inline 6 following overheat

    If you overheated the engine, the Cover Plate likely warped, and a new gasket will only seal for a bit. That happened on my 84 115 back in the mid 80s. After replacing the gasket 3 times, sometimes Dry, other times with sealer, the Service Manager at the dealer, gave me a new Cover, no more leak.
  13. jimmbo

    Rattling sound 1984 Evinrude 50hp

    Still no play. What Ever...
  14. jimmbo

    Running horrible. 1978 Johnson seahorse 35.

    Sounds like what is called a Link and Sync, needs to be done. Actually quite easy on this motor.
  15. jimmbo

    ok..prop experts...?

    You don't prop a Marine Engine for a particular Mid throttle Rpm.
  16. jimmbo

    198x SS-150 rebuild

    I will stand on my Statement that that is is no Bracing
  17. jimmbo

    198x SS-150 rebuild

    There's no added Bracing with that, just 8 more holes to leak
  18. jimmbo

    Rattling sound 1984 Evinrude 50hp

    It doesn't for me. God Damn Windows 11
  19. jimmbo

    how does one flush out rust from block?

    Oxalic Acid isn't Environmentally or Animal unfriendly. It is what makes Rhubarb Leaves Toxic for Humans, but I've seen other Animals eat them. Of course I didn't follow them around, so maybe it did kill them
  20. jimmbo

    25hp mercury runs high rpm

    There are Carbon Removers like BRP Engine Tuner, or Mercury/Quicksilver Power Tune, that will soften and help remove Carbon from behind the Rings
Top