Re: [TR] SU carb fuel bowl

[<wbeech@flash.net>]

The vent is also the overflow in the incidence of a stuck float valve.  I
have 3 sets of SU H6 for the TR3s and they all have the short piece of fuel
line followed buy a short copper line bent at 90 degrees pointing down,
presumably to route any spillage.  I recently worked on a Morgan with the
same SU carbs and there were rubber lines run down to just below the frame,
much like the radiator overflow, this seems to make more sense to me.

So I would keep the length of hose on the vent tubes so they can provide
proper routing of excess petrol but also to prevent airborne contaminants
from entering the float bowl through the vents, and consider a longer hose
as extra security from fire.

Hope this helps,
Bill

-----Original Message-----
From: triumphs-bounces@autox.team.net
[mailto:triumphs-bounces@autox.team.net] On Behalf Of Dave
Sent: Sunday, June 03, 2012 9:07 PM
To: triumphs@autox.team.net
Subject: [TR] SU carb fuel bowl

on each of the fuel bowls on the su carbs on my 63 TR4 there is a little
vent tube, which when it arrived had little lengths of hose attached.

seems rather superfluous to me.  assuming Ibm not concerned about it
looking correct, do I need to put an inch or two of hose back on or should I
just leave it off.  what is the point of the short hose?

before picture:  http://www.ranteer.com/davescars/tr4/DSCN6284.JPG

after picture:  http://www.ranteer.com/davescars/tr4/DSCN6774.JPG

and yes, I do know that the fuel line has to connect from one to the other.
Ibm talking about the other, little vent tube.

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