Featured Back To The Forum...with A New Mountain Cub

Discussion in 'Vintage Classics' started by HMC_MT, Mar 28, 2022.

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  1. HMC_MT

    HMC_MT Well-Known Member

    Nov 30, 2020
    173
    93
    Billings MT
    Later today I'll be back inside the left/right side covers to inspect & ad appropriate gaskets. Also slightly worried I may not be shifting correctly so keep tabs! Then valve lash adjustment and get it mounted up enough to check compression.

    Contemplating a Boyer ignition as I really like mine on my Bonneville but will try the points setup first.
     
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  2. HMC_MT

    HMC_MT Well-Known Member

    Nov 30, 2020
    173
    93
    Billings MT
    How do I make sure the shift quadrant is correct? My Haynes entertainment manual says nothing about it.

    IMG_20220513_094657782.jpg

    IMG_20220513_094704758_HDR.jpg
     
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  3. darkman

    darkman Crème de la Crème

    Oct 26, 2015
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    The shifter detent pins engage in the cam plate and as long as the pivot pin lines up with the plate and cover to fit the pivot pin that's it, the box is very similar to the 500's so no indexing req.
     
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  4. HMC_MT

    HMC_MT Well-Known Member

    Nov 30, 2020
    173
    93
    Billings MT
    @darkman my complete gasket set didn't have one for this cover, just the outer cover. Should there be one, or maybe use a gasket maker which I'm not a fan of. I think this side is ready to go back together once I sort that. Thx
     
  5. darkman

    darkman Crème de la Crème

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    Triumph never used gaskets on the inner covers from new and used Stag Wellseal, works perfectly if applied to both surfaces thinly and left to go tacky before fitting.
     
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  6. HMC_MT

    HMC_MT Well-Known Member

    Nov 30, 2020
    173
    93
    Billings MT
    An update for @darkman since he's paying attention lol. Got the left and right side together after a few struggles. Was moving on to the points/advance units before I test for the engine for a compression test.

    Here's a pic of the unit as it was fitted when I got it. Isn't there a wire that should be attached to condenser or something that isn't there? Where does it mount on unit and where does it end up?
    Screenshot_20220516-093756-566.png
     
  7. darkman

    darkman Crème de la Crème

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    The wire goes on the threaded part of the condenser :)
     
  8. HMC_MT

    HMC_MT Well-Known Member

    Nov 30, 2020
    173
    93
    Billings MT
    Where does the other end, end up? I may go to electronic ignition but if I can get this timed and get spark, nothing wrong with points! Getting pretty anxious!
     
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  9. GPT100

    GPT100 Active Member

    Sep 13, 2016
    225
    43
    East Durham Coast
    Hi HMC, don`t know if you have seen Paul Brodie on you Tube, he has been assembling a tiger cub engine there might be some info of use.
     
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  10. HMC_MT

    HMC_MT Well-Known Member

    Nov 30, 2020
    173
    93
    Billings MT
    Yeah I follow him and have watched the Cub videos multiple times. He went with an electronic ignition.
     
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  11. darkman

    darkman Crème de la Crème

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    A black wire with a white trace should go to the non earth side of your coil.
     
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  12. HMC_MT

    HMC_MT Well-Known Member

    Nov 30, 2020
    173
    93
    Billings MT
    I was referring to where the non existent wire off the condenser post went but I think I have it sorted. Out the hole where points plate is, then behind outer case and coming through 1 of 2 holes next to clutch cable. Pics attached and then on to figuring out where the wire I replaced goes to etc. to go after timing & spark. I must say that Haynes manual is terrible! I also used a permatex red gasket sealer on that inner case area, hopefully no one is rolling over in their grave. That's what I could find locally.
    IMG_20220516_152108685.jpg
    IMG_20220516_152117987_HDR.jpg
    IMG_20220516_144422375.jpg
     
  13. HMC_MT

    HMC_MT Well-Known Member

    Nov 30, 2020
    173
    93
    Billings MT
    @darkman see above
     
  14. darkman

    darkman Crème de la Crème

    Oct 26, 2015
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    Sorry i misread that question oops, great to its sorted :)
     
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  15. HMC_MT

    HMC_MT Well-Known Member

    Nov 30, 2020
    173
    93
    Billings MT
    @darkman I'm currently having a mild to moderate panic situation here as I abandoned points etc. due to a startling discovery. While moving the kicker by hand, when the piston is coming up to TDC and the intake valve is open, the piston hits the open valve acting like a piston stop. Valve clearance at .004 and I have to loosen the adjuster all the way out for it to roll over and have the valve close. What the hell is happening here?!
     
  16. darkman

    darkman Crème de la Crème

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    #56 darkman, May 18, 2022
    Last edited: May 18, 2022
    Ok i have had a big think on this and assume you had not yet turned the engine over after assembly.
     
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