Outboard Motor Forums (by brand) > Mercury/Mariner Outboards
ethanol strikes again
bullet20dc:
225 optimax down on power big time wont get over 1900 rpm She blew up the motor a few weeks ago and I was able to put together a spinning block for her. During the first time out test run this problem came up I tore my hair out on this one. it was running great till it blew up and took out a piston , rod , and grenaded a sleeve. Well thats cause she didn't have any oil in the reserve tank for 845 seconds according to the DDT fault history . I went over every test in the book, the DDT says No Faults occurred, checked rail fuel and air pressure all good. Ok so for giggles I changed out the fuel lines from the tank to the bulb and from bulb to low pressure pump. Just as I was ready to fire it up the sky opens up and it comes down in buckets so I retreated to the shop. while I was waiting for it to stop i decided to slice open the hose to see if it was clogged or callapsed.
here's what I found those pieces are the liner of the std gray fuel line that comes with the boat the fuel line is split open and u can see what was the liner. Gotta love that ethanol. a great case for using a treatment regularly.
Curt:
Wow! (fp)
That's some serious stuff right there. :nod:
I treat every bit of gas that runs through my system, even in the summer time when I know the fuel will get used fairly soon.
I know there are debates as to which additive works best, but I've been using Startron since day one, with every tank of fuel, and I have had zero problems in almost 8 years. (nope)
JackJ:
I have had the same problem twice with my Dads boat. I had replaced it with the gray one also, which I thought the gray was supposed to be ethanol resistant, and you would think that all they sell now would be, but nope it happened again. So watch out they are still selling gas lines with the primer bulbs that are not ethanol resistant.
Even with additive, those particular linings still deteriorate on those.
Curt:
--- Quote from: JackJ on June 07, 2016, 12:16:56 PM ---you would think that all they sell now would be ethanol resistant...
--- End quote ---
Would be nice, wouldn't it? (yes)
fishon-son:
rec 90?
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