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 Post subject: Fuel Flow Problems
PostPosted: Fri Mar 28, 2008 12:59 pm 
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848cc
848cc
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Joined: Wed Jun 20, 2007 6:47 pm
Posts: 423
Location: Melbourne. Westie.
I suffer a fuel flow problem mainly when turning corners. I think the standard SU is flooding because the float could be set too low. Could anyone tell me the right 'height' for the float?

Oh, and does anyone else suffer from this problem?


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PostPosted: Fri Mar 28, 2008 1:39 pm 
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1275cc
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Joined: Tue Mar 16, 2004 10:34 am
Posts: 2067
Location: Canberra
Fuel surge is a common problem with HS type SUs, especially when the float is too low, as when you go to fast round a corner the carburettor is starved of fuel. I blame gravity. The correct float clearance is 1/8" - a drill bit between the float and lid is the easiest way to check it.


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PostPosted: Fri Mar 28, 2008 2:27 pm 
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848cc
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Joined: Wed Jun 20, 2007 6:47 pm
Posts: 423
Location: Melbourne. Westie.
Thanks I'll adjust it to 1/8 and see how it goes


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PostPosted: Fri Mar 28, 2008 5:46 pm 
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848cc
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Joined: Thu Mar 20, 2008 12:44 pm
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Location: VB country
i hate fiddling with those bloody things, you need a friggin PHD to get them spot on.


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PostPosted: Fri Mar 28, 2008 9:10 pm 
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848cc
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Joined: Wed Jun 20, 2007 6:47 pm
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Location: Melbourne. Westie.
I just found this on the net.

Could be of use to anyone thinking of tuning their SU.
http://www.moreg.org.au/carburettors.htm


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