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  1. jimmbo

    Biggest problem with boating?

    Welcome to iboats Having People understanding the Rules of the Waterways, mainly Right of Way, and making the playing of (c)Rap Music on the Water, Illegal
  2. jimmbo

    pull cord not returning.

    You heard a Snap? The Recoil Spring likely broke. Disassemble and replace
  3. jimmbo

    Johnson 1980 9.9 lower unit leaking oil out of small hole

    Get the case Pressure tested. 2 ounces of Oil is a lot. You may have pressurized the case by pumping Air into it, by R&Ring the Driveshaft, which could push some oil past the Seals, but 2 ounces... Does it Stink to High Heaven like Gear does?
  4. jimmbo

    Looking for advice on fixing rivets on an 1983 aluminum boat

    In the early 80s one of our Mirrocrafts had something dropped inside, and put a roundish 1 inch dent/tear in the hull bottom about 6 ft forward of the transom, it acted like a little scoop, and produced a nice spray inside the boat. I was about 21 at the time, I put the boat on the Trailer and...
  5. jimmbo

    1964 Mercury 850 Water Flow Issue

    Most Gear Oils are Amber, but I too have seen some that are Bluish.
  6. jimmbo

    1964 Mercury 850 Water Flow Issue

    What you are calling a Seep Hole, is Drain for Water. Many people have cobbled together a Hand Pump, with a Pressure Gauge, to a Hose with a Fitting that will screw into the Vent or Drain Screw. Regardless of mercury claiming about the newer system, there is still some Exhaust spillover into the...
  7. jimmbo

    1964 Mercury 850 Water Flow Issue

    Gearcase Oil should not 'Seep out' at any time. Have you put any of this seepage on your finger and smelled it? Gear Oils generally stink to High Heaven, and that stench is hard to remove, though Bleach, right from the Jug does kill it. If oil is being pushed past the seals it is usually because...
  8. jimmbo

    97 Force 120- Low idle at times, stalls when engaging into gear

    Shift Cable? The Throttle Cable is the One that usually needs to have its Length adjusted when the Idle Speed is Adjusted
  9. jimmbo

    1976 25hp Johnson ignition question

    What are you Torqueing the Flywheel Nut to? Over Torqueing can ruin the Flywheel, and could cause shearing of the Key
  10. jimmbo

    Prop pitch and diameter

    Welcome to iboats Is the replacement Prop the same Brand and Model/Lineage/Part #? 6 props, all 13 X 19, can provide 6 different Kinds of Outcomes. Blade shape, blade area, rake, cupping, will all play a factor.
  11. jimmbo

    Why does my tandem axle trailer not have a backup solenoid?

    Even with Drum Brakes, if you try backing up an Incline, unless you Physically Lock out the Actuator, the Brakes will be applied. Of course, if they are way out of Adjustment, you might get away with it
  12. jimmbo

    Weird situation, looking for advice/how to repair

    You've already learned about the Properties of the Metal the Cowl Pan is made of. The Blow that bent/twisted it was spread over a bigger area, and all at once, than what you are doing by prying a bit here and there. You say it landed Face first, busting the carb Mixture Control, or did it land...
  13. jimmbo

    Is my Mercruiser fuel injected or carb?

    The Fly in the Ointment, is what is the Airflow capacity of the OEM Carb and the Characteristic of the OEM Intake. If the Intake can flow more are and the OEM carb was the restriction, then yes the Holley would improve the power. If the Intake is the Restriction, then a bigger carb, will...
  14. jimmbo

    Is my Mercruiser fuel injected or carb?

    If a 2bbl can provide all the Airflow required, a properly set up 4 bbl will not provide more. The 5 liter spinning at 5000 rpm with a Volumetric Efficiency of 75-80% needs about 350cfm, so like I said, the 2bbl Holley is very close to that. However a small 4bbl, around 400cfm will have smaller...
  15. jimmbo

    Is my Mercruiser fuel injected or carb?

    The Holley 500cfm 2bbl is the Perfect size for a 5 liter, spinning up to 5000rpm
  16. jimmbo

    oil injection or premix the gas myself?

    It is also a Gamble that once it is removed, that the proper amount of Oil is added, and adequately mixed
  17. jimmbo

    2006 HPDI Prop Question

    What is the WOT Rpm Range for that engine?
  18. jimmbo

    oil injection or premix the gas myself?

    Leave it connected, and run a few tanks of Premix, then check to see if the Oil has dropped in the Oil Tank. If it hasn't then you know it isn't working. If it has dropped then it is adding some oil.
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