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SU carb.

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SU carb.
jonblob33 Offline
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Joined: Aug 2017 Posts: 65 Threads: 11
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#1
09-12-2018, 09:27 PM
Hi, having just acquired a H1 carb I am thinking about fitting it to my bog standard 1933 PD. The carb has a weighted piston & no spring. Can anyone suggest a safe starting point for needle & jet please? Also could I fit a spring with the weighted piston. 
TIA. Kevin.
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Jeff Taylor Offline
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Joined: Aug 2017 Posts: 683 Threads: 17
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Location: The far North East of England
Car type: 1934 Austin 7 AVH Van (in bits & incomplete!), 1936 Morris 8 Series I Tourer
#2
09-12-2018, 11:55 PM
(09-12-2018, 09:27 PM)jonblob33 Wrote: Hi, having just acquired a H1 carb I am thinking about fitting it to my bog standard 1933 PD. The carb has a weighted piston & no spring. Can anyone suggest a safe starting point for needle & jet please? Also could I fit a spring with the weighted piston. 
TIA. Kevin.
Hi Kevin,

See link below to my recent post 25th November on this subject - mine is post number 6. I can't see any reason why you would want to fit a spring as a weighted piston carb never had one. The jet should be the standard 0.090".

http://www.austinsevenfriends.co.uk/foru...2#pid19712

Jeff.
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