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  1. jimmbo

    1969 mercury 800 (80hp) 4cyl Lower Unit Removal

    That 'Guide'. is the cam/actuator for the Reverse Lock. The splines on the Shift Shaft components are configured in such a way that they are supposed to fit only one way. I dropped the Gearcases on my inline 6s many times, and I never had any issues of getting them back together properly...
  2. jimmbo

    1969 mercury 800 (80hp) 4cyl Lower Unit Removal

    1) that is usually what is done 2) The Trim Tab has to be taken off. But the bolt can stay where it is. If you remove it, once you have dropped the Lower Unit, the Bolt is very easy to remove. 3) Any nuts holding the Pump to the Gear Case will likely be Nylock type nuts, no need for Lock-Tite on...
  3. jimmbo

    Heating Johnson

    The Impeller should be changed, as it is at least 4 yrs old. If you find pieces of the Impeller missing, there is a chance that some pieces went up the Water Pipe, reducing flow. There should have been instructions with the Temp Gauge as to where to mount the Temp Sensor.
  4. jimmbo

    help me please if possible

  5. jimmbo

    Oil mix ratio

    Not much different in an Auto/Truck engine, lose Oil Pressure/Flow, and the Connecting Rod Bearings or Camshaft are the first things to fail.
  6. jimmbo

    What are the best ST225/75R/15 boat tires?

    Yet the Wear Bars are far less than 1/8". Sounds more like what Businesses do best, Gouge the Customer
  7. jimmbo

    Can You Make Up For Different Gear Ratio With a Different Pitch Prop?

    (y)
  8. jimmbo

    Yamaha lf200 four strokes not planing out

    Sometimes once the Injectors get crud in them, the only choice is replacement
  9. jimmbo

    What are the best ST225/75R/15 boat tires?

    After 12 yrs, one of the Goodyear Marathons came a little unglued
  10. jimmbo

    Just thought I'd share a nice photo.

    We know that:LOL:. However look how much smaller a Goose is
  11. jimmbo

    Just thought I'd share a nice photo.

    They produce about 2 pounds of Poop daily.
  12. jimmbo

    Just thought I'd share a nice photo.

    Testing my new Camera
  13. jimmbo

    Oil mix ratio

    That may apply to engines with Anti Friction Bearings throughout, but not engines with Friction Bearings(Bushing). Lots of Oil is needed as Racer explained. Less than 16:1 and you are at risk of Metal to Metal contact in the Connecting Rod Bearings, as there will not be enough Oil to maintain...
  14. jimmbo

    What are the best ST225/75R/15 boat tires?

    Goodyear Endurance.
  15. jimmbo

    Concerned about Hull Config / Cramped Engine Bay

    Like how Cars have been built the past 25 years. Have to take the front of the car off to replace a Head Light bulb
  16. jimmbo

    Best upgraded ignition system for use with Sniper EFI on a 1979 Mercruiser 260

    If the points were badly worn/corroded, replacing them would restore HP, and improve Economy
  17. jimmbo

    Best upgraded ignition system for use with Sniper EFI on a 1979 Mercruiser 260

    Reread post #2. It has the best option you can opt for. Easy to obtain Parts if it does crap out, unlike like the 3rd Party stuff.
  18. jimmbo

    Concerned about Hull Config / Cramped Engine Bay

    Removing the that Rear Panel might compromise the the Hulls Integrity by removing Structure. Dzus Fasteners aren't the same as a few layers of Glass
  19. jimmbo

    Concerned about Hull Config / Cramped Engine Bay

    On this unit, the boat would likely need to be split to even do that. A questionable purchase when new and under warranty(everything is the Dealers problem), but one the Warranty ends, the 'For Sale' Signs appear on these boats
  20. jimmbo

    Squeezing more from 5.0L 220hp

    I never bothered to read all the posts, but First is the engine in good condition Mechanically? Compression #s As for getting more power out of the 5 liter, it is not known for its Torque producing ability, which you need in a 23 footer. You are currently over propped, and need to get the RPMs...
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