As others have said it is either excessive pump pressure, a faulty float
valve, float, or possibly reversed fuel and vent lines, and this can flood the
engine as well as the canister. If coming out of both vents it probably is
the pump or reversed connections, if only one probably float or valve. With
HSs it is easy to take the float lid off (*not* so easy with the integral
float HIFs) and blow gently in what you think is the fuel inlet and see if you
can shut it off by raising the float. There are layout diagrams of the
plumbing on http://www.mgb-stuff.org.uk/wn_fuelframe.htm and click on 'North
American Emissions Plumbing'.
PaulH.
----- Original Message -----
From: S Twigg
To: MG-MGB@yahoogroups.com ; mgs@autox.team.net
Sent: Tuesday, September 30, 2003 10:24 AM
Subject: [MG-MGB] SU Swap Questions
I in the midst of converting my 75B from the ZS to a set of
HS4's from a 1970 (AUD405F & R). My problem lies in the fuel vent line.
I created a T to connect the two lines from the front and back fuel
bowls to the single vent line that went from the ZS to the carbon
canister. After I had everything connected correctly the vent line
proceeded to fill the canister with gas and I believe the engine was
flooded - that is when I gave up for the day
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