Recent content by jimmbo

  1. jimmbo

    safe?

    How do expect any kind of answer, except No, when you ask a question like that?
  2. jimmbo

    Questions about the set up of a Holley 4160 on a 4.3 V6

    Both Carbs have their adjustability Issues. In the case of Holleys, they do sell a lot of Parts to make a lot of Recalibrations a bit easier. With Q-Jets, a very large collection of scrap Carbs can yield some of the Parts
  3. jimmbo

    Questions about the set up of a Holley 4160 on a 4.3 V6

    When the Primary plates are in the correct location relative to the Transfer Slots, the Secondary Plate can be adjusted to attain the correct Idle Speed, a real PIA. As for a Vacuum source. Does the Carb have a Choke Pulloff? If so, once the Choke is fully open, it doesn't rely on it, and it's...
  4. jimmbo

    Questions about the set up of a Holley 4160 on a 4.3 V6

    I keep forgetting that there are V6 Engines.
  5. jimmbo

    Questions about the set up of a Holley 4160 on a 4.3 V6

    VP used the 4175, a spreadbore, to replace the Q-Jet
  6. jimmbo

    1962 Evinrude 40hp Lower Unit Leak?

    BRP markets the Oil now as Precision Blend. Beware though that there are a few Brands on the Market that claim to be Type C, but are not compatible with the Electric Shift. You have used new Washers on the Drain/Fill and Vent Screws, every time you replace them? They have been known to leak...
  7. jimmbo

    cupped prop question

    If an Uncupped Prop has a Cup added, then yes, the load on the Engine Increases. A 17" prop plus Cup is 17" plus cup(whatever it is). A new cupped Prop, might indeed be 17" cup included Depending on where the Cup is located, is also a factor. Cup on the Trailing Edge, affects Pitch, whilst Cup...
  8. jimmbo

    cupped prop question

    A lot of Props have Progressive Pitch Blades, and the Trailing Edge, will have the greatest Pitch
  9. jimmbo

    Sand getting into Suzuki 20hp outboard - can I pull it out?

    In the 70s we used to run WOT with the Prop leaving 6 inch troughs in the Sand Bars in order to get to the Shore at our Lake. Skeg and Prop Blades were worn, but the Water Pump and Impeller, looked fine when taken apart for Inspection and Impeller replacement. Water Pickup was in the Exhaust...
  10. jimmbo

    1969 buick 225 oddfire

    The Vacuum Pot can be removed and the Breaker Plate for the points/sensor fixed in place, however the Jeep distributor would be illegal on a boat, unless it was modified and certified to be USCG compliant
  11. jimmbo

    1969 buick 225 oddfire

    Perhaps they could Marinize an Automotive GM Odd-fire HEI Distributor for your needs
  12. jimmbo

    1969 buick 225 oddfire

    If the Springs are tired, the weights and pins are also likely worn, which all together affects the Rate of Advance as well as the Total Advance. The pricey One-off Marine Distributor with the correct Timing Curve might be the better choice
  13. jimmbo

    1969 buick 225 oddfire

    Unlikely. I suspect the Aftermarket will be focused mainly on the Chev SB and BB, along with some Ford engines.
  14. jimmbo

    Top unit noisy after bearing change

    Replacing those parts, isn't take the old one out/off, put the new one in. There are Shims in there to adjust the Gear Mesh, perhaps that wasn't checked
  15. jimmbo

    Very Interesting Weather Pattern in these Clouds

    Two Weather Fronts, meeting.
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