Springs on Dauphine Drums
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Thread: Springs on Dauphine Drums

  1. #1
    Fellow Frogger! geodon's Avatar
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    Default Springs on Dauphine Drums

    I've started on my project! I fixed a flat tyre using the Fergie as a bead breaker: those skinny front tyres & that big heavy lump of a Vanguard motor worked a treat. I guess that brands me as an old geezer because I know how to use tyre levers & a rubber mallet.

    Can someone tell my why there are springs around the Dauphine's brake drums? Yeah, yeah, I'm Renault Virgin but we all have to start somewhere.

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    "Pauses for audience applause......not a sausage!"....Bluebottle

    1949 Citroen Big 6
    1955 MGA1500
    1970 Peugeot 404 Utility (Resto project)
    1962 Renault Dauphine Gordini (Resto project)
    1950 Grey Fergie Tractor

  2. #2
    Fellow Frogger! R8philSA's Avatar
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    I always thought it was for extra heat dissapation. Be interesting to see what others come up with.
    Cheers
    phil

  3. #3
    Fellow Frogger! geodon's Avatar
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    Thnx Phil, I'm glad to see I'm not the only insomniac in the country.

    So the Italians use fins & the French use springs? With lateral thinking of that order no wonder they came up with the 2CV
    "Pauses for audience applause......not a sausage!"....Bluebottle

    1949 Citroen Big 6
    1955 MGA1500
    1970 Peugeot 404 Utility (Resto project)
    1962 Renault Dauphine Gordini (Resto project)
    1950 Grey Fergie Tractor

  4. #4
    1000+ Posts Frans's Avatar
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    It is a resonance damper. Basically the same as the block on the R8 stabilizer bar and the irregular pattern on tyres.
    Frans
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    I am not that experienced with Renault drums on earlier cars but I haven't experienced any squeal or noticeable resonance as such but I tend to agree with both points of view. I think it does both, reduces the possibility of resonance as well as aids in cooling. Fence sitting.

  6. #6
    Fellow Frogger! bingham driver's Avatar
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    Spot on Frans, & resonance results in us hearing squeal. Works on the same principal as when you cut steel in a vise with a hacksaw & it squeals, but if you hold it with your hand or cut closer to the vice jaws it doesn't.
    Once I thought I was wrong but, I was mistaken

  7. #7
    Fellow Frogger! geodon's Avatar
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    Ah! Perfectly reasonable & most inventive. I'm impressed with quite a few such finesses on the vehicle. e.g. the nifty "hairpin" spring that holds the engine lid up!
    "Pauses for audience applause......not a sausage!"....Bluebottle

    1949 Citroen Big 6
    1955 MGA1500
    1970 Peugeot 404 Utility (Resto project)
    1962 Renault Dauphine Gordini (Resto project)
    1950 Grey Fergie Tractor

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