MKI / MKII S type 240 340 & Daimler 1955 - 1967

Throttle return spring - SU carbs on '56 Mk 1

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Old 04-16-2018, 02:25 PM
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Default Throttle return spring - SU carbs on '56 Mk 1

Does anyone know the length and diameter of the throttle return springs - long and short? These are the springs that connect to brackets below the carbs. I think they should be 9" and 4", 1/2" diameter. I'm reassembling a basket case and do not have the rear spring and, need to confirm the front (short) spring.

Thanks
 
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Old 04-16-2018, 04:12 PM
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I can measure them tomorrow for you, do you need part No's, you can get them from SNG and others.

Are you just trying to fathom what springs are what from a pile of bits or are you substituting springs from some other source, if so do you need the pulling force too ?
 
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Old 04-17-2018, 01:25 AM
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I have photos and part numbers of the springs. I've looked through my extra springs - they are not throttle return springs. I might be able to find them at one of the two Jag swap meets this weekend. There is also a spring manufacturer about 25 miles away, they always have what I need when I give them a sample or specifications. The pulling force would be good to know but, length and diameter is all I need.

Thanks for your help.
 
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Old 04-17-2018, 03:00 PM
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Didn't get to the workshop today as other commitments made me late, I will be there tomorrow, so will get info then.
 
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