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HS4 Carb Plumbing (Yet again)

Subject: HS4 Carb Plumbing (Yet again)
From: Florrie & Allen Bachelder <>
Date: Tue, 18 May 1999 14:35:54 -0400
Erik  -

Well I'm not quite qualified to answer this - but if I'm outrageously
wrong, perhaps somebody more knowlegable than I will save you from my
50%-wisdom.  The HS4s I put on my '76 have two ports front and two ports
back.  The ports facing toward the air cleaners are not fuel ports but
vents plumbed a "T" and hence off to the charcoal canister.  The other two
are fuel ports.  On mine, I had to rig a "T" in the fuel line to feed both
carb's.  Could it be that the front carb's with three ports are simply
designed to eliminate the "T" I had to rig?  In other words, the ports are
"vent" , "fuel in", and "fuel out" to the rear carb.  The rear carb's two
are "fuel in" and "vent".

' Just a guess.  Let us know how you come out on this.


From: "chief bootknocker" <>
>Hello everyone,
>I have asked this before and not received a straight answer. If any one
>has the HS4 setup with the front float bowl having three input/output fuel
>ports and the rear with the normal two ports, could you please take a look
>at them and tell me how they are routed.
>I took pictures at the latest MG show put on by Moss and the only people
>with that setup said that they did not know how it was plumbed!!!!!!!!  I
>am going to go ahead with the conversion and that is just one of the
>nagging problems I have to solve.
>"Free web-based email available now at";

         Allen H. Bachelder  =iii=<
         Sinking Creek Home for Wayward MGs
         New Castle, VA 24127

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