Meanwhile back in the shop...

Discussion in 'Some Assembly Required' started by Fast Idle, Sep 14, 2019.

  1. Pezz_gs

    Pezz_gs Cant ride for crap

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    Very nice work :thumb
    So will that be tigged in and will you be able to save original paint, keeping the heat as low as possible?
    #61
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  2. Fast Idle

    Fast Idle Since the Sixties Supporter

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    Hopefully won't loose any more paint. Will protect it best I can.
    I think the previous repair has it burned back far enough.:photog
    Probably TIG it with silicon bronze. Lower heat and good flow. Should seal it up nice.
    #62
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  3. AK650

    AK650 Long timer Supporter

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    Happy to help out buddy! See you guys at breakfast!
    #63
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  4. Fast Idle

    Fast Idle Since the Sixties Supporter

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    Back in the shop after a trip to town and breakfast out with friends.
    Now the gas tank repair can proceed. Thanks again for helping out Jeff!

    The old nipple needs to get cut off and the area prepped before fitting the new one.
    Here's the original. This sides looks OK.
    bung (7).JPG
    But the threads had been welded over on the back. The weld was mostly laying on top and didn't even fix the leak. I ground it off and you can see it never penetrated down into the joint.
    bung (1).JPG
    Used a thin cut off wheel to remove the old nipple. This particular brand works awesome. They cut quick.
    P1120357.JPG

    The whole area is a bit of a mess. Too bad they burnt off so much paint. I still think the tank will look OK when finished. It will get some epoxy primer and perhaps a close color top coat on the repair. Won't see most of it. The scorched decal will be the worst. I can live with that. She'll still look great going down the road. :photog
    There are re-pop decals out there but not real sure I want to open that can of worms.
    P1120356.JPG
    #64
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  5. villageidiot

    villageidiot Long timer Supporter

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    yes you are and yes you do!
    #65
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  6. Fast Idle

    Fast Idle Since the Sixties Supporter

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    You can see what looks to be the original need for the repair. Like the factory weld was flawed.
    I 'll weld it up before fitting the replacement nipple.
    P1120359.JPG
    The replacement was made with a flange to make the repair easier and cover up the old work. There's a lip on the tank side to locate it. Fits perfectly inside they old one and still has room for the petcock tubes. It's also longer. The original was really too short IMO.
    bung (9).jpg

    P1120364.JPG

    Tacked it in place and then started the weld with silicone bronze.
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    P1120373.JPG
    #66
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  7. Beezer

    Beezer Long timer Supporter

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    beautiful what ya done there. actually..... I've done some like that with solder. tack weld & solder. some old aircraft tanks (like PA12) were made of tinned sheet steel, folded lap seams & soldered. and braze is an OEM method. I've run into it on more than a couple tanks where braze is used as a method to attach the nipple as well as a factory fix for making a seal at places where the welds weren't 100%.
    #67
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  8. Fast Idle

    Fast Idle Since the Sixties Supporter

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    Leak testing showed a couple of weeps that had to get fixed but it's all good now.
    Tank is filled with vinegar to get rid of some light rust.

    P1120376.JPG
    P1120378.JPG
    #68
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  9. r60man

    r60man Long timer

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    That tank has some cool lines. I really like it.
    #69
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  10. Scubawerx

    Scubawerx Scubawerx

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    Going to be nice!
    #70
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  11. Roofchop

    Roofchop Hands up mother stickers, this is a f**k up!

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    With your skills you can rub down/paint that sticker/decal and no one would know....:D
    #71
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  12. Fast Idle

    Fast Idle Since the Sixties Supporter

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    Well I didn't get that ambitious and just painted some blue that was on hand over the epoxy. Not much of a match but better than gray I suppose.:photog
    Anyway she's done for now and going into winter storage. What a great looking little scrambler from Suzuki!
    It runs good and everything works as it should so she'll be ready to ride come spring.
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    #72
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  13. JagLite

    JagLite Long timer Supporter

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    Another beautiful bike build! :clap
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  14. fast1075

    fast1075 Not a Lemming Supporter

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    Steve, your skills are amazing. That was some beautiful brazing work.
    #74
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  15. Fast Idle

    Fast Idle Since the Sixties Supporter

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    Hey fast1075, good to hear from you, hope you're doing well!
    TIG brazing is really easy. A friend gave me some silicon bronze rod a few years back and said " here, try this, brazing with a TIG torch."
    I had not previously heard of it. The learning curve is really fast. Watch a you tube video or two and go for it. If you can TIG weld you can pick this up fast and it's pretty handy for lots of applications.
    #75
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  16. villageidiot

    villageidiot Long timer Supporter

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    silicon bronze looks really good in raw applications as well
    #76
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  17. MacNoob

    MacNoob piney fresh

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    that speedo is pretty optimistic
    #77
  18. Fast Idle

    Fast Idle Since the Sixties Supporter

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    Too funny! :photog
    Guess I never really noticed that.
    #78
  19. Fast Idle

    Fast Idle Since the Sixties Supporter

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    The Suzuki T-250 was going to be a winter project but now that it's done I need to find something else.
    There is a project I started like 10 years ago and never finished. It was a honey-do project that stalled out and I never seemed to get back to it.
    I have the time now so the project is going to fire back up and get finished. It's a vintage ride for the wife.
    Not a motorcycle but it is a 2-stroke twin!
    WARNING:
    da2.jpg
    #79
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  20. Dino de Laurentiis

    Dino de Laurentiis Working on it

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    How would you rate TIG brazing compared to MIG brazing?
    #80