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Re: [Healeys] HD8 carb leaking

To: "T W" <ah3000me@gmail.com>
Subject: Re: [Healeys] HD8 carb leaking
From: "Marvin James" <britcrs@gmail.com>
Date: Mon, 1 Sep 2008 06:27:48 -0700
The Grose-jet was probably a superior replacement for the original all metal
needle/seats jets but I believe the Viton tipped needle/seat is superior to
the Grose-jet.

Marv J


On Mon, Sep 1, 2008 at 5:55 AM, T W <ah3000me@gmail.com> wrote:

> Hi,
>
> I should be out driving, instead my front HD8 is sitting disassembled in my
> basement.   Aiieee..
>
> I was getting some gas leaking from the bottom of my front carb.   I didn't
> notice any gas coming out of the overflow tube.   I've had this happen in
> the past when I turn the ignition key and listen until the fuel pump stops
> clicking.  If the pump didn't stop, a couple of taps on the float chamber
> would take care of it.
>
> Yesterday I was running down a problem with one of the turn signals (bad
> bullet connector), so I had the ignition on for a while without running the
> engine.   I noticed the fuel pump clicking every so often, and I could
> smell
> gas.   No gas coming out the overflow tube, just gas slowly dripping from
> the bottom of the carb.
>
> A check of the list archive suggested the diaphram (jet assembly) was a
> likely culprit.   I pulled the carb off, but the diaphram appears to be
> OK.
>
> Is it possible to have slow leak at the float chamber needle valve, so that
> the float chamber isn't overflowing, but you're getting too much gas at the
> needle?     Another question -- when the diaphram fails, is it really
> obvious, or could I be over looking a small crack?
>
> I was looking thru my Moss catalog, and it sez the grosse jet is a superior
> replacement for the needle and seat.   Does anyone have any experience with
> one vs. the other?
>
> thanks again!
>
> Tom
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