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Thread: Tri-Z Engines

  1. #46
    Join Date
    Oct 2003
    Location
    Las Vegas, NV.
    --
    2,446
    I just checked VatoZone online (LOL), and my local store says the "original cold weld formula" 2 oz. size is in stock. Need me to mail you some?
    Red Rider's Sand Machine Updated 07/23/14

  2. #47
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,003
    I’ll check with the hardware places first and if it’s banned in México or something I’ll hit you up, thanks!

  3. #48
    Join Date
    May 2006
    Location
    The Open Road
    --
    4,729
    That epoxy doesn't stick to the wood dowel?

  4. #49
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,003
    Quote Originally Posted by ironchop View Post
    That epoxy doesn't stick to the wood dowel?
    Absolutely, but it’ll be a lot easier for me to run a drillbit through the wood and then start modifying the hole with the die grinder then it would be to try and drill through solid epoxy. It also gives me a nice guide to work with.

  5. #50
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,003
    Grainger Mexico came through with the JB Weld, so that’s on again. Meanwhile I decided to try and recover a cracked clutch cover by having the face machined flat and welding a 6061 plate over it and then gusseting the plate to the more ridged outer edges of the cover.

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    Not sure how ghoulish it will look welded up, but if it holds up I’ll live with it, can’t possibly be any uglier that the ones I’ve seen where the welder has chased the cracks all over the cover.
    Last edited by El Camexican; 10-22-2020 at 11:20 PM.

  6. #51
    Join Date
    Oct 2003
    Location
    Las Vegas, NV.
    --
    2,446
    Quote Originally Posted by El Camexican View Post
    Not sure how ghoulish it will look welded up, ...
    Nice fix! It looks like an alien has attached itself to the clutch cover.
    Red Rider's Sand Machine Updated 07/23/14

  7. #52
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,003
    You remember that Startrek episode too eh?

  8. #53
    Join Date
    Oct 2003
    Location
    Las Vegas, NV.
    --
    2,446
    Quote Originally Posted by El Camexican View Post
    You remember that Startrek episode too eh?
    Nope, never got into Star Trek. I was referring to the movie "Alien."

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    Red Rider's Sand Machine Updated 07/23/14

  9. #54
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,003
    Drilled out the wood dowels and formed the epoxy ports. Got a couple small voids to fill
    in, but otherwise pretty happy with the results.

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  10. #55
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,003
    This finally arrived from Sweden, Jap parts from the land of the Husky, go figure.

    Turns out it’s still on the original bore and has the OEM slug in it. There’s silicone on the base gasket, so someone was in it to do rings, but it’s still in better shape than Mike Tyson for its age.

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  11. #56
    Join Date
    May 2006
    Location
    The Open Road
    --
    4,729
    The internet is both a beautiful thing and a wicked curse.

    Without it though, I'd have not built a couple motorcycles and 5 ATCs, to nane just a few things.... In all cases, I've needed parts and knowledge to pull it off for the last twenty years. I'm not to disappointed in not having to wait for swap meets, word of mouth, or the tiny print classified Trader Paper anymore.

    Nice score

  12. #57
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,003
    Quote Originally Posted by ironchop View Post
    The internet is both a beautiful thing and a wicked curse.

    Without it though, I'd have not built a couple motorcycles and 5 ATCs, to nane just a few things.... In all cases, I've needed parts and knowledge to pull it off for the last twenty years. I'm not to disappointed in not having to wait for swap meets, word of mouth, or the tiny print classified Trader Paper anymore.

    Nice score
    When I think of how many kilos of Japanese aluminum I sold to the scrap dealer before eBay existed I want to cry. If not for the Internet and eBay many of us outside the US would never be able to patch up these old rides, I just wish it had existed sooner.... and not at all.

  13. #58
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,003
    Got my Frankencover back this weekend. As expected it warped, so now I need to get it all cleaned up, try to stress relive it and then either machine it flat, or bolt it to a set of cases and use a torch trick Ironchop turned me on to.

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    PV arm cover had some rash, seems all of them get worn by a hose sheath of some sort on the YZ, so I filled it in with JB Weld.

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  14. #59
    BarnBoy is offline Just Too Addicted Arm chair racerJust too addicted
    Join Date
    Jun 2015
    Location
    Oklahoma
    --
    731
    Welds look good Nico. How warped is it?
    1984 HONDA ATC200M - OG, mid-restoration
    1981 HONDA ATC200 - future build
    1981 HONDA ATC185S - parts
    1984 ATC200X - roller, future build
    1984 Honda ATC250r - in a million pieces- ISO grab bar, PM if you have one

    Da velder
    _______________________________________________
    Feedback:
    http://www.3wheelerworld.com/showthr...ck-for-Barnboy

  15. #60
    Join Date
    Apr 2011
    Location
    Mexico
    --
    9,003
    Quote Originally Posted by BarnBoy View Post
    Welds look good Nico. How warped is it?
    Cover warped .050” down the center. Ironchop sent me a video on how to straighten it, so I plan to try that.

    Turns out the guy my machinist guy recommend to weld the cover and a cylinder used an arc welder and rod. I was not happy given I was told it would be TIG welder. It’s going to take a lot of grinding to make it pretty. Same for the cylinder. Had him run some beads on the side where the boost port was added and also to weld a crack where the exhaust snout is attached to the base. Both welds were too ugly to dress completely with a die grinder, I’d have had to remove too much material, so I just took the welds down as little as possible and smoothed them over with epoxy. Once they’re sanded an painted the mods should be invisible unless it’s side by side with a stock cylinder.

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