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  1. jimmbo

    Higher elevation issues.

    AV Plate 2 3/8" above the hull bottom? That is the setup for a boat going over 60mph Is this a new boat and motor, or just 'new to you'?
  2. jimmbo

    1998 Mercruiser 5.0 Intake manifold gasket mismatch issues

    They have appeared since my earlier post. Earlier, it said "View Attachment" at each spot The first pic appears that they fit/line up well, the second ??. the 3rd ?? However, How do they match the ports on the Head? Every intake gasket I have used for the later SB Chevy, had the silicone bead...
  3. jimmbo

    Johnson 55hp 1979 snapped bolt after following manual. Why?

    A lot of people live by 'If Enough is Good, More is Better, and Too Much is Just Right', when it comes to tightening Bolts/Nuts/Screws
  4. jimmbo

    Acceptable trailering?

    Class 2 is up to 3500lbs. So if your unit is less below that, you are fine. 2" Balls can be had in both Class 2 or Class 3 versions. I did tow my current boat with a Class 2 Hitch for a couple of years, though it was exceeding the capacity by a couple of hundred pounds. One night some drunk rear...
  5. jimmbo

    Converting from vertical 2x4 to horizontal 2x6 bunks

    The only trailers EZLoader puts bunks that narrow are very light trailers, 600 and 800 lb models, so even on edge, the weight per square inch isn't all that great. Trailers of greater Capacity will have longer and wider bunks
  6. jimmbo

    90elpto was perfect now cranks but no exhaust

    Know you know why Divorces are so Expensive... Cause they are Worth It
  7. jimmbo

    Hole shot, Mercruiser 4.3L

    The hole shot isn't fine if you can't pull a skier up. Torque, rather than HP is more critical for Hole Shot, Increases to top end HP, usually lower Low Rpm Torque.
  8. jimmbo

    1998 Mercruiser 5.0 Intake manifold gasket mismatch issues

    No pics show up
  9. jimmbo

    Have 14x19 4 blade on 4.3 GXi. Upgrade to Stainless Steel worthwhile?

    Again a 19ft with a 4.3... Ditching the 4 blade would be a good idea, a Prop that has adjustable Venting could help getting the engine to rev up to where it has more Torque to get the boat planing with a Skier behind, and dropping the Pitch to where the engine would be about 500-700 rpm above...
  10. jimmbo

    2002 Mastercraft 5.7 harmonic balancer moving in and out

    And you would need to take/send the ECM out for a reprogram because of the Displacement change, and perhaps a different intake to flow more Air, for the same Reason.
  11. jimmbo

    Torque Roll?

    To me, astern, has meant without Humour. ie) He was a stern captain...
  12. jimmbo

    Hole shot, Mercruiser 4.3L

    Even though I have been Chastised for saying this, I will do so again, a 4.3 is simply too small to use in a boat longer than 17ft, if water sports other than Wakeboarding are tried. Torque at low Rpms is too low, especially if they are trying to get more HP at the top end. Propping for skiing...
  13. jimmbo

    Torque Roll?

    Just tell people you have to balance the load in the boat being small. Starboard is the Right Side when Viewed from behind, a Prop spinning Clockwise(RH) should cause a Boat to List to Port.
  14. jimmbo

    2002 Mastercraft 5.7 harmonic balancer moving in and out

    A complete Teardown and Inspection is needed. If new Pistons, Rods, Piston/Wrist Pins, Crank, and Bearings are what will allow you to sleep better, so be it. Also inspect/Magnaflux the Caps that hold the Crank in the Block for Crack/Fatigue
  15. jimmbo

    What size is this Mercury

    Fun TImes is correct. Brown Decal is 84/85, and the the only 4 Cylinder that used that Transom Bracket in those years was the 75hp Oil is mixed at 50:1 Gear Ratio is 2.3:1 WOT rpm range is 5000-5500
  16. jimmbo

    What size is this Mercury

    Welcome to iboats I don't ever remember there being a 4 Cylinder 60hp. My Service Reference Manuals, Parts Books, and even Mercury Brochures show none. Post some pictures. with and without the Cowl How long ago did you acquire this motor? I suspect you have a bunch of Parts Cobbled together
  17. jimmbo

    1998 Mercruiser 5.0 Intake manifold gasket mismatch issues

    Pictures showing the Mismatch would help.
  18. jimmbo

    Anchoring question

    Add about 8-10 ft of Chain between the Rope and Anchor too.
  19. jimmbo

    Can anyone help with identifying trailer?

    Welcome to iboats Here is a Link to a Page that has links to many brands of vintage trailers. Maybe you can find yours in there http://www.fiberglassics.com/library/index.php?title=Main_Page
  20. jimmbo

    2002 Mastercraft 5.7 harmonic balancer moving in and out

    Would love to see pictures of the Crank. I am not Doubting you, I would just like to see how a Crank breaks. Google here I come...
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