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Author Topic: Beta Fuel Lines  (Read 1053 times)
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neil-yaj396
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« on: 22 January, 2011, 12:25:44 PM »

What size are the fuel lines on a standard carb model. Delivery (steel pipe to pump to carb) and the significantly smaller return pipe? I have a leak either on the pipe into the pump or the return from the carb, most likely the former.
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1979 1300 Beta Coupe, 2014 Ypsilon 1.2 S Series Momo
St Volumex
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« Reply #1 on: 23 January, 2011, 07:48:11 AM »

Neil, the inlet pipe is ~ 7.5 mm O.D (6.5 mm I.D.) and the return is ~ 5 mm O.D. and 4 mm I.D.

That's the best estimate at measuring them in my garage this morning.

Regards,
« Last Edit: 24 January, 2011, 08:10:04 AM by St Volumex » Logged

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neil-yaj396
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« Reply #2 on: 24 January, 2011, 07:29:43 AM »

Thanks, the larger pipe is pretty common and easy to get hold of but I could only find one UK seller of smaller diameter braided pipe with ID of 3.5mm, which I've ordered - as the leak seems to have been intermittent the return pipe is now prime suspect.
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1979 1300 Beta Coupe, 2014 Ypsilon 1.2 S Series Momo
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