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  1. jimmbo

    Gph at various rpm...thoughts?

    1982 was the year Mercury started Prop Rating Engines larger than the 50 cubic inches. There have been rumours for Decades that in 82, Mercury rebranded the 115 as a 90, and the 140 as a 115, the 175 as a 150, the 200 as a 175, and the 225 as a 200. Maybe, maybe not, as the Specified Rpm Ranges...
  2. jimmbo

    Outboard ran without water for about five minutes

    If the Cylinder/Piston was damaged, the Damage will increase over time
  3. jimmbo

    Starting your car in this cold weather.

    To us more aged Posters, setting the Coke is so natural to us, we don't even consider it Mentionable... I do find it very Entertaining when the Younger Generation tries starting a Car/Truck/Boat with a Carb....
  4. jimmbo

    Is 40 lbs pressure enough?

    In one you say "didn’t see water from Pete hole after 30 seconds " The next you say "stared engine in less then 30 seconds water was coming out telltale" Which is it?
  5. jimmbo

    new carb

    I don't know if Mercruiser offered the 302 in a 4bbl. A Holley 2bbl 500cfm is pretty the perfect size for a 302 spinning up to 5000rpm, which is far higher than the Marine 302s ever turned
  6. jimmbo

    Is 40 lbs pressure enough?

    How long is that Hose? Was it completely Kink Free? 40 psi, as mentioned above is Meaningless, if the Flow is very low And now for the Rest of the Story.... Any other work done to the Engine?
  7. jimmbo

    Tachometer

    They do, but they can't catch all of it, so just click on report, at the bottom of the post...
  8. jimmbo

    JC Tritoon . Does anyone know why JC doesn't have a Dealership out west ?

    Most are far too Tax Friendly to Business. Businesses and their Parasitic Owners, should be paying for all the Infrastructure their Business require, not the General Population.
  9. jimmbo

    Transom Wood Selection

    Marine Grade Plywood inside and out, is the way to go. Sealed with Epoxy, it should last at least a couple of Decades
  10. jimmbo

    JC Tritoon . Does anyone know why JC doesn't have a Dealership out west ?

    Only the Incompetent Management knows for sure...
  11. jimmbo

    Outboard ran without water for about five minutes

    a bit of info about Impeller abuse
  12. jimmbo

    Starting your car in this cold weather.

    I have several GM Manuals from the 70s and 80s, and I have never seen that in any of them. Some do say to make sure all lights, external and internal, are off.
  13. jimmbo

    Starting your car in this cold weather.

    I wish I could keep them from coming on, until it actually gets Cold. Right now the darn things are automatically on when it gets to about 8C(approx 45F)
  14. jimmbo

    83' 115hp Mercury, prop slip

    It was on a Crestliner Crusader 550. Prop was 19" Mercury Prop. The pic was taken in July 85/ I have a pic of the Tach and Speedo giving their Info, I just have to get it into the Computer A 4 blade will kill the Top End by several mph... I would NEVER put a 4 blade on my Boat
  15. jimmbo

    83' 115hp Mercury, prop slip

    I have never owned a TP Prop, I was at the Dealer, and took one out of the Box, it looked Odd, so I took a few more out, and several had 1 of 3 misshaped Blades. Maybe they had a bad Batch, but it shows poor QC and/or Inspection prior to packaging
  16. jimmbo

    Outboard ran without water for about five minutes

    Maybe you got away Lucky, but time will tell, redo the Compression Test after about 20 hours on the Engine
  17. jimmbo

    Prop for Evinrude V4 crossflow

    That engine weighs about 300lbs. I find it difficult to believe that a 15 1/2" even with 30 gallons of Gas and a Battery, weighing 1500lbs. You might have waterlogged Foam in it This 15 1/5 was 950lbs and this 16ft was 810lbs
  18. jimmbo

    Prop for Evinrude V4 crossflow

    It looks more like a 14ft. What's the Boats Beam?
  19. jimmbo

    83' 115hp Mercury, prop slip

    An 83 115 has a WOT Range of 5000-5500. The Last year an Inline 6 had a 5300-5800 WOT Range was in 1981, on the 140hp The best way to improve Efficiency is to reduce Weight. Getting rid of unneeded Weight, like Wife, kids, Mother-in-Law, especially the MIL, will help a lot. Mistresses and...
  20. jimmbo

    Prop for Evinrude V4 crossflow

    If you are doing 45mph with a 21" Prop, you are turning about 5000 I would check the Setting on the Tachometer Must be a Very Light, and I mean Very Light, 16ft to get that speed with an 82 90hp Even Glastron's light little 15 ft, got about 42mph with an 82 90hp
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