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  1. jimmbo

    1977 Evinrude 85 hp w a 140 carb?

    The 77 85hp uses a 92.6 cu in Block, not the 99.6 in block the 140 uses. In 1979, OMC started using a 99.6 in block for the 85hp In 1971 and 72, OMC did use a 92.6 in Block to get 100 hp, however whether an 85hp block can be hopped up I don't know if the parts needed would fit on the later 92.6...
  2. jimmbo

    Caddy XT5 Towing Capability

    Of course a turbo of the same relative Displacement will have more power. However it will likely have a Lower compression Ratio to handle the Boost, which when no Boost, the NA 3.6, with I think 11.5:1, has the advantage for fuel Economy. The XT5 gets better Gas Mileage than my STS did even...
  3. jimmbo

    Caddy XT5 Towing Capability

    I live where it is very Flat, only a River Valley for Slopes, and Overpasses seem like Mountains, so the V4 thing is active about 45% of the time in City Driving, on the Highway it has come on but not much. I find that the Auto Brake responds real Quick when a car in front hits the Brakes hard...
  4. jimmbo

    Caddy XT5 Towing Capability

    No choices on the Displacement, I haven't seen any aftermarket fixes. You will have a Button on the Dash to disable the Auto Stop, but it has to be done every time you start the Car. An Inexpensive Cable installed near the Hood Latch, convinces the ECM that the Hood is open and Disables the...
  5. jimmbo

    Caddy XT5 Towing Capability

    I have an XT5(I actually bought for the Girlfriend as she has a couple of pre 5ers), and the 3.6 has a pretty good Torque Curve(watch out GM also puts a 2 liter in it too). I wouldn't tow my boat(3490#) with it, as I have the Roadmaster and the RWD Fleetwood for that, with towing Capacities of...
  6. jimmbo

    Need help!

    Looks like someone took a Grinder to the Case where a Drain Hole is
  7. jimmbo

    Need help!

    Time to do a Pressure-Vacuum Test on the Lower Unit. That Gear Oil looked awful
  8. jimmbo

    any tire preference for vans at the boat ramp?

    Are you planning on loading on a Cliff? There are some Tires( Michelin Cross Climate come to mind), that are very good in the Summer, even though they are Mud and Snow Tires, that would probably be a good choice.
  9. jimmbo

    My new ‘66 jupiter gem

    I would be in Heaven, going through those Bins along the Starboard side of the boat. I can see a 1965 90hp Evinrude, a 58 or 59 50hp, and at least a couple of 40hp Johnson, all resting there
  10. jimmbo

    any tire preference for vans at the boat ramp?

    Unless the Ramp is very greasy, I doubt you would have any problem, even with plain old worn out All Season tires.
  11. jimmbo

    Mercury XR2 150 stuggling to get on plane.

    You said in your Original Post "once its on plane it gets going like it used too at WOT" Then later you say your top Rpm is 4500. So has 4500 Rpm always been the fastest the engine has ran?
  12. jimmbo

    Bent Lower Shaft, Help!

    22 yrs ago I had to replace the Prop Shaft on mine. for years I kept it under the Front Seat of my Car
  13. jimmbo

    1984 75hp L4 with unique problem? I'm baffled!

    You won't as the Water Jackets are Empty, and there is no Exhaust Reverberation to push water into the Cylinder
  14. jimmbo

    1984 75hp L4 with unique problem? I'm baffled!

    The Cylinders that are not firing, what do the plugs look like, Wet or Dry? Inspect the Insulators for Cracks With the Engine running, on Muffs as it will not too bad with only 2 cylinders firing, check that air is entering the Carb, and also check for air-fuel being pushed back, out of the...
  15. jimmbo

    1984 75hp L4 with unique problem? I'm baffled!

    Can the Spark jump a 3/8" Gap? If it can't then it is weak. As for the Timing Light, that doesn't prove the Plug is Firing, all it proves is that the Current is getting to Ground, perhaps through the Plugs, perhaps not.
  16. jimmbo

    1984 75hp L4 with unique problem? I'm baffled!

    In 99+% of the time 1 1/2 turns is too Rich. Are the Floats set correctly? I like to spray a bit of Premix into the carb to see how the engine responds to extra fuel, others will say to choke it momentarily. Your timing light will reveal if Voltage is getting to the Plug, but that is no...
  17. jimmbo

    1984 75hp L4 with unique problem? I'm baffled!

    Having spark doesn't mean the Engine is Firing. If a carb is Plugged, 2 of the Cylinders will not be contributing to the Effort, and in fact are at Risk of getting Pooched from lack of Oil. Too bad you chased off Racer, he is one of the Best on the Board
  18. jimmbo

    Oil change interval, synthetic or no, curious what we all do

    For the last 3 yrs I have been using Pennzoil Ultra Platinum in 3 of my cars, 1 with DI(200,000k), the other two with Sequential FI(300,000K and 20,000K). In the two high Milers, the oil gets very dirty quickly. All the cars seem to have better Throttle Response, and Pick Up since using the...
  19. jimmbo

    Nobody fishing?

    It hit 15 today, forecast was 11 or 12. Warmest Nov 17 I can recall, ever.
  20. jimmbo

    Nobody fishing?

    It was only 5 ft thick last winter
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