Anyone seen this

Discussion in 'Indian Scout' started by putamayo, Jan 26, 2021.

  1. putamayo

    putamayo Well-Known Member

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    A few days ago I went into the shed turned on the key listened to the start up hum, but at the same time there seemed to be hissing sound with fluid mixed in coming from under tank. Now the fuel was down to say 1/2 gallon in the tank and the shed was real hot as its summer here. So I turned off key then back on 2 more times,so in total it made that same sound 3 times and promptly stopped and has not done it again.
    But here's the thing, i went for a 120 mile ride and when i got home this weird streak appeared on the left side front of tank on the cast frame. It wont polish off and seems to etched into the casting.
    It stars on top of the frame then goes down the left face of the frame.
    Have had tank off and no immediate problem was seen I also have had into workshop and they found no problem with the bike. it runs about 20mm out from tanks and follows the shape of the tank perfectly.
    Anyone seen this on there scout? 20210127_134640.jpg DSC00647.JPG DSC00648.JPG 20210127_134640.jpg DSC00647.JPG DSC00648.JPG
     
  2. Baldhead_J

    Baldhead_J Gold Member
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    Interesting. Tracking for education.
     
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  3. doublej

    doublej Bronze Member
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    The first thing is cycling the key/power on/off primes the fuel injectors...usually necessary if a bike sits for long periods.

    Second, what tank/bike are we looking at? All stock?
     
  4. Rodd

    Rodd Bronze Member

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    You had the tank repainted. Was any of the prep or buffing done with the tank on the bike?
     
  5. putamayo

    putamayo Well-Known Member

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    Stock tank wrapped 18mths ago in 3m military matte green.
     
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  6. putamayo

    putamayo Well-Known Member

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    20201112_093846.jpg all the wrapping was done off bike.
     
  7. putamayo

    putamayo Well-Known Member

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    Thanks for the reply's.
     
  8. putamayo

    putamayo Well-Known Member

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    I also know the sound of priming the injectors etc. It never has the sound of air mixed with liquid sound escaping. but as I said has never done that noise a gain.
     
  9. doublej

    doublej Bronze Member
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    My Scout used to hiss and whistle all the time ...assumed it was expansion/contraction of gas/vapors in the tank...

    Is your tank stock?
     
  10. muz

    muz Bronze Member

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    Maybe a high pressure leak from the fuel pump in the tank, just guessing here, weird.
     
  11. putamayo

    putamayo Well-Known Member

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    Yes
     
  12. putamayo

    putamayo Well-Known Member

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    Yes Muz I was of the opinion that vapor of some sort is leaking under pressure. thought it might be water, but ruled that out as the engine was stone cold so no pressure built up there. so leaves something like fuel vapor, thought thee breather from engine to ss air cleaner may have come off but no.
    So now have put a strip of masking tape over the area and next ride I will see what or if marking is appearing on the masking tape. At the moment I have blown the ligaments around my right knee and cannot ride. could take some time to heal I am told.
     
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  13. doublej

    doublej Bronze Member
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    Was the tank pulled for the wrap job? If so, that could mean the frame came in contact with something upon removal. If not, it also seems likely while 'dressing' or cleaning the tank that area could become abraided with something per @Rodd ...since it follows the tank contour perfectly. 2) Did you try cleaning the marks with alcohol or acetone? I think the frame is powder coated....

    RE; the leak...if the tank was pulled, a fitting or line could have cracked that is releasing pressure....somewhere.

    I installed a Ness intake on my Scout....I found pulling the tank a PITA (hands too big) and cracked the fuel line fitting the first time I pulled the tank.

    Hope your leg feels better- John
     
  14. putamayo

    putamayo Well-Known Member

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    Hi John,Yes tank and guards were removed 18 months ago so it would seem unlikely this would take that long to appear . Yes have tried cleaning it. I also 2 weeks ago had a bike shop remove tanks and they checked all lines seals and fuel connections and found nothing out of place.
    I will monitor it. As for my knee well I also have a 22foot trailer yacht that I race solo and I am currently 2= on points with a race this Sunday 7th and 2 more in March so just gona take pain killers and go for it. I am sure come Monday I will probably regret that though. Winds are going to be really lite so that helps as my little yacht like 5 to 10knots of wind.
     
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  15. Rodd

    Rodd Bronze Member

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    Geeees @putamayo don't mention yacht racing - too soon after the last round of the America's Cup.:confused:;)
     
  16. putamayo

    putamayo Well-Known Member

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    May have solved this just need to leave for 24 hrs and see if what i did fixed the prob. looking good so far.
     
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  17. putamayo

    putamayo Well-Known Member

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    OKKKKKKKKKKKKK,yesterday I decided to try and clean the strange mark off the chassis again.
    tried rubbing compound result dulled but not gone.
    tried alcohol result no difference
    tried turpentine result no difference.
    tried kerosene result no difference.
    So back to the shelf what is left to try.
    Well how about magic in a can as they call it
    W D 40
    spray on, wipe dry, mark goneeeeeeeeeeeeeeeeee.
    I clean my vinyl wrap with MUC-OFF matte vinyl detailer,
    Usually i apply to a cloth then the bike but maybe I sprayed it directly on the tank and the over spray landed on the frame and dried, as you have seen in the photos above.
    Well the WD40 got that off and all is good.
    Must remember when I'm feel blu, go glup down some WD40. It will keep my nuts from rusting
     
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  18. Rodd

    Rodd Bronze Member

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    Good result.
     
  19. doublej

    doublej Bronze Member
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    I love hydrocarbons....let's see if it comes back after you get your bike dirty and wash it....just a hunch. Best of luck to you yachting and riding!!
     

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