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Thread: H1 Throttle Shafts

Discuss the Austin Healey Sprite and the MG Midget. Two different but similar cars sometimes referred to collectively as the Spridget.

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    Moderator drooartz's Avatar
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    H1 Throttle Shafts

    Okay, I've done what I can to tune up the Tunebug. On issue that was suggested is that throttle shafts are probably worn. How do I test?

    I can wiggle the shaft that connects the 2 carbs pretty easily. Is that what I'm looking at? Any other way to test?
    Drew Frink
    '59 RHD Frogeye Sprite - "Penny" sleeping for now
    '66 RHD Morris Minor - "Maggie" awaiting a non-cracked transmission
    '70 RHD MGB - driving in 2019?
    '19 Triumph Bonneville T100 - good to have one that runs

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    Jedi Hopeful cdsmith's Avatar
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    Re: H1 Throttle Shafts

    I posted a suggestion on your other topic "video", but I'll add if you can wiggle the throttle shafts - and get any noticeable movement (up/down) - then shafts are worn. If its done with engine running you may get a variation in idle.

    I have one throttle shaft that is a little sloppy on my car, but it is not too big of a deal as far as drivability - though itís not possible to get a real smooth idle...

    Hope this helps
    cd
    59 Bugeye w/1275... "The Little Car"


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    Yoda Trevor Jessie's Avatar
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    Re: H1 Throttle Shafts

    Test for wiggle by grasping the throttle plate and seeing if the shaft can move. The shaft connecting the carbs should have wiggle in it so that it doesn't bind.
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    Great Pumpkin jlaird's Avatar
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    Re: H1 Throttle Shafts

    See post on other thread.
    Jack Laird
    Retired USAF

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    Moderator drooartz's Avatar
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    Re: H1 Throttle Shafts

    I'll give a look tonight when I get home. If I were a betting man, I'd consider it a safe bet that they are quite worn.
    Drew Frink
    '59 RHD Frogeye Sprite - "Penny" sleeping for now
    '66 RHD Morris Minor - "Maggie" awaiting a non-cracked transmission
    '70 RHD MGB - driving in 2019?
    '19 Triumph Bonneville T100 - good to have one that runs

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