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  1. L

    Prop problem

    I don't have documented information but I saw in a youtube video that aluminum props loose 25% of pitch due to deformation, is tha true? If that is like that it seems a big difference in efficiency I guess, but well as explained before I will stick with my old prop just rehubbed, I think it...
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    Prop problem

    I will ship it to the repair shop, I have read that aluminum props are not as efficient as the Stainless steel so I don't want to go that route. The rehubing and shipping estimates I have right now are $125 dollars. A new (chinese) SS prop is about $180 dollars, hoping this guys know what they...
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    Prop problem

    I was able to find a shop that repairs propellers, is 500 miles from my location, I guess having a boat living in a place without lakes nearby has its downsides... but I think this is the best way to go, I'll get this one repaired, and later with a Tach I will see RPMs to decide if a change is...
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    Prop problem

    Yes I'm thinking in having a Tach, however to properly select a propeller I guess I should have some different Props available, test with the Tach and then select and buy the definitive, as I don't have them I think the most secure way to do it is just buying one same size at it had before...
  5. L

    Prop problem

    Unfortunately I'm located in an area that don't have that kind of shops, is easier for me to get the spares shipped to me than replacing.
  6. L

    Prop problem

    Some questions... My prop is part number 48-76228A4 13, I can't find new ones just some used in ebay, being this very old props and that the hubs can fail I don't want to buy a used one does anybody knows what would be a replacement for that one? Also I wonder if now that I'm buying a new prop I...
  7. L

    Prop problem

    My prop
  8. L

    Prop problem

    After inspecting my prop and seeing some videos I think that hub repair is beyond my skills and available tools, maybe a new one is the best option.
  9. L

    Prop problem

    After watching some videos on YouTube I find out that the purpose of that hub is actually tu spin when the prop hits something, so based in the video do you think is damaged or just as it should work? Another why I wouldn't get to speed up if the motor was revving up? Thanks
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    Prop problem

  11. L

    Prop problem

    Hi, so I went to the lake yesterday an hit some rocks after launching the boat and it stalled, not a big hit apparently although after that we started boating no major issues at low speed then when I started to increase speed motor went high in revs but no more speed, felt like no power was...
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    Mercontrol Wiring to 1978 Mercury 500 Thunderbolt

    So I went the easy route, my harness had like 2 foot extra in length so I was able to just repair the damaged wire and is working good now, I did noticed all the insulation of the cables is falling into pieces so I plan to change the whole harness soon.
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    Mercontrol Wiring to 1978 Mercury 500 Thunderbolt

    Thank you alldodge, exactly what I was looking for.
  14. L

    Mercontrol Wiring to 1978 Mercury 500 Thunderbolt

    Hello, I have trouble starting up the motor I turn the key and have intermiten fails, sometimes it starts and sometimes it doesn't, some years ago I repaired some wires that were completely destroyed, rusted and falling in pieces, I saw yesterday while trying to crank some smoke comming from...
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    Nobody fishing?

    First time I hook a Tilapia, I don't know how is called this in english, not common to get one of this with a lure, and yesterday I fished 2 of them, not very fun the rod just felt heavy, no fight at all. Good experience anyways.
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    Milky fuel in carb intake force 85hp

    Thinking well I did put new gaskets, I put them dry, do you use any seal maker? Should I use some? Thanks
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    Milky fuel in carb intake force 85hp

    Not a lot of updates just cleaned up the carbs and fired it up, it sounds good at idle will never know until going back to the lake if it revs ups, but I remembered in other thread ot maybe in this one before the rebuild of the motor jerry told me to spray starter fluid to see if it was leaking...
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    Tachometer for 1978 Mercury 500 Thunderbolt

    not sure what is the plane speed, how can I check this?
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    Tachometer for 1978 Mercury 500 Thunderbolt

    The boat is 15' long, I'm unsure of the lenght of the trip but we were running average 25-26 mph, that means that over all it was 1.3 hours more or less. According to what I have read the rle of thumb is that my 50 hp will burn 5 gph. It should had been 6.5 but we burned 10. There are things to...
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    Tachometer for 1978 Mercury 500 Thunderbolt

    Hi, what kind of tachometer I need for my outboard? 1978 Mercury 500 Thunderbolt 50HP S/N 4967035, after some tweaks I think it is running good but even being a small engine it is a thirsty one, it consumes too much gas to what I believe should be doing, we usually go WOT I want to change that...
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