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fishinwrench

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fishinwrench last won the day on October 11

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About fishinwrench

  • Birthday 08/18/1963

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  1. #4 is your coolest running cylinder (heat rises). #1 is always the hottest (that's why the temp sensor is placed near there). You will hardly ever see lower cylinders fail first from an overheated outboard, it's always #1 & #2 unless it overheated from friction as a result of a lack of lubrication......and in the case of a 4-stroke I would guess contaminated oil. (Fuel in the oil) of which 4-stroke outboards are FAMOUS for. Here ya go.... https://www.boatingmag.com/how-to/making-oil/#:~:text=Your engine could be β€œmaking,fluid intrusion of the crankcase.&text=Check your oil regularly.,oil before slipping the lines.
  2. I was too. And still am sad about it. Evinrude was the only company that built outboards for the primary purpose of freshwater use. They honestly tried to build them to last. And still, even though they have ceased production, are supplying parts for ALL those motors to this day.....and have vowed to continue doing so for as long as there is demand. All other outboard manufacturers sell the huge majority of their units along the coasts (saltwater). They know that no matter how well they design and build them.... they're only gonna live a rather short life due to saltwater corrosion. So they have no desire to produce an outboard that will last multiple decades, and they certainly have no intention to keep supplying parts for them shortly after their warranty expires. Basically spitting in the face of all their freshwater customers.....cuz to them the freshwater sales are such a small little piece of their overall pie.
  3. Exactly. 9 times out of 10 it is something that is bolted to the powerhead that caused it to fail. Simply installing a fresh powerhead without determining what caused the original one to fail....and rectifying THAT as well....is just ensuring that the replacement powerhead will also fail. Dealerships with "certified techs" doing warranty work are FAMOUS for doing exactly that......"the powerhead failed, so replace the powerhead and ship it out". It just ain't that easy. If you can't determine what caused the failure to occur then you need to thoroughly go through the entire fuel, lubrication, ignition, and cooling systems. The powerhead I showed pics of above went down because of excessive combustion chamber temperature, indicated by the melted top corner of the piston on the exhaust port side of the cylinder. It wasn't a fault of the cooling system though. It was caused from restricted fuel/oil because for some unknown reason Mercury designed the 2.5L injector's with SCREENS over the tip of the injectors. WHY ? If something is small enough to pass through the injectors....why not just let the motor chew it up and spit it out???? Noooo, we're gonna let that crap build up on the screens and potentially restrict the fuel and oil going into the cylinder. A result of outsourcing....those injectors are built in Japan and sent to them that way. Needless to say.....I pop those idiotic screens off with the edge of a putty knife, and pitch them in the trash. And I've never (knock on wood) had a 2.5 repeat failure. πŸ‘. So until someone from Mercury explains what useful purpose those screens serve....in ENGLISH, NOT JAPANESE....they will continue to get thrown in the trash at Sims Marine in the United States.
  4. This one here was wound up pretty tight..... wouldn't you say? Not wide open though. Likely in the 4800-5000 range.
  5. Experience, and training. Plus the amount and depth of the dimples on a piston and cylinder head from shrapnel pinging around inside the cylinder, are a prime indicator of how "wound up" the motor was when all hell broke loose. Yes. The majority don't know the engine has powerhead damage until I tell them it does. Occasionally I'll have one with a rod and chunk of piston blown out the side of the block.....When you see THAT you pretty much know. πŸ˜…
  6. The old school of thought with mechanical carbureted 2-strokes (and it has some merit) was that after 1/2 throttle the ignition was already fully advanced....so you might as well pour as much fuel/oil into the cylinders as possible. That's where the old saying "2-strokes are designed to run full-throttle" came from. Better to run 5500 RPM for 30 minutes, get there sooner and shut her down,.....than to run 4200 RPM for an hour and get there later. After tearing down, inspecting, and rebuilding a shitload of them.....I truly can't tell you which method is best for engine life. But one fact is constant.....a huge majority of catastrophic powerhead failures happen at mid-range throttle settings, even with today's computer controlled ignition and fuel metering systems. The faster a piston moves/the less time is available for something to go wrong. If weight weren't such a huge factor then 4S outboards that would last FOREVER could easily be designed. But engine weight is a giant issue when your dealing with things that have to perform....and still float. A 20hp push mower that cuts a 4' swath would be great....but you couldn't push it up a hill.
  7. I've had and used them all at one time or another, and wore their hats proudly when I did. But after alot of years in the business of dealing with all of them intimately, I choose the late '80s - early 90's Evinrudes for my personal boat pushers. They are just my favorite for a number of reasons. I like a bunch of the Mercury motors, as far as design and function goes.... but the issue with them is always PARTS AVAILABILITY (and price) when something does go wrong. Yamaha's across the HP range are wicked good. Suzuki......there you go with the parts availability thing again. Nissan/Tohatsu: No complaints at all.....until it comes to aquiring parts. Honda.... hands down the worst. Never EVER. I won't even attempt to work on them. Love their dirt bikes though.
  8. Cause of the failure is still undetermined? Pardon me if I haven't kept up to speed on this project. And yeah, just because you spent 8 hours out on the water in a fishing boat certainly doesn't mean that you put 8 hours on the motor. πŸ™„
  9. They steer with a rudder I believe. Which could be a bit sketchy in current. I'd want a backup paddle on board for sure.
  10. Thousands? There's a huge exaggeration factor going on there. But that's ok, I'm glad you're happy with it. That's all that truly matters. One thing I've always credited the 4S motors for.....is that THEY'LL USUALLY LIMP YOU BACK HOME. Whereas 2-strokes have no problem at all leaving you stranded far from your truck/trailer. πŸ˜…
  11. Good job, bro ! I hope she lives a few trips for ya. 😊
  12. They are only "consistent"when they are stocked frequently. The lower region of Truman lake is as "consistent" as it gets I think.
  13. True, but the materials to produce them do. We are good with wood and steel, but do we have the capability to produce copper, rubber, nylon, and plastic on our own yet?
  14. Don't count on it. They are up to their ears in warranty negotiations. Gonna be interesting to see how they bail theirselves out of this one. Especially with all those ships stuck off the coast.
  15. Coves like Raccoon that have narrow backends are good for bass/crappie, but typically not the best choice for temperate bass and/or bigger cats.
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