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Re: [Healeys] Grose-Jets

To: Bob Spidell <bspidell@comcast.net>
Subject: Re: [Healeys] Grose-Jets
From: Alan Seigrist via Healeys <healeys@autox.team.net>
Date: Fri, 8 Oct 2021 08:17:21 +0800
Cc: healeys@autox.team.net
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <617A842F-D6A2-4B1C-AE09-540308B4C17C@me.com> <bsvslg5u7e29m2e1oe52obsfatdphcu3co@4ax.com> <e81b6e6e-27b0-f279-cb78-7c1467abe74f@comcast.net> <CAFBXTkKGBi-ib7a1Wv321kFWWNqfM2czmWPkn8MeuRKzBnwpyQ@mail.gmail.com>
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one final point - if you have a partially flooded float, Grose Jets work
better, but I use nitrile floats now so it doesn=E2=80=99t really matter no=
w.

On Fri, 8 Oct 2021 at 8:15 AM, Alan Seigrist <healey.nut@gmail.com> wrote:

> After all of us discussing Grose Jets for years, I think it really boils
> down to the modes of failure for both:
>
> 1) Traditional jets typically only have one mode of failure - they kink i=
n
> place and freeze open, and fuel flows out the overflow pipes.  This only
> happens on startup and if you are paying attention you can stop it with a
> tap of the mallot.  This failure doesn=E2=80=99t happen very often but fu=
el can be
> wasted.  The failure is minimized with proper adjustment.  Traditional je=
ts
> handle crud in the fuel generally quite well.
>
> 2) Grose Jets can fail both closed and open.  They are VERY sensitive to
> crud in the fuel and if they fail open, sometimes tapping with a mallot
> doesn=E2=80=99t work because something is jammed in the balls.  Grose jet=
s can also
> fail closed if the little ball gets stuck.  I=E2=80=99ve had both modes o=
f failure
> with them.
>
> In my use experience I haven=E2=80=99t seen much difference between the t=
wo, and
> having had Grose Jets shut off my fuel in the past I tend to favor the
> traditional style, esp when they have the little spring loaded peg and
> rubber tip.
>
> Best,
>
> Alan
>
>>
>>

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<div dir=3D"auto">one final point - if you have a partially flooded float, =
Grose Jets work better, but I use nitrile floats now so it doesn=E2=80=99t =
really matter now.</div><div><br><div class=3D"gmail_quote"><div dir=3D"ltr=
" class=3D"gmail_attr">On Fri, 8 Oct 2021 at 8:15 AM, Alan Seigrist &lt;<a =
href=3D"mailto:healey.nut@gmail.com";>healey.nut@gmail.com</a>&gt; wrote:<br=
></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;=
border-left-width:1px;border-left-style:solid;padding-left:1ex;border-left-=
color:rgb(204,204,204)"><div dir=3D"auto">After all of us discussing Grose =
Jets for years, I think it really boils down to the modes of failure for bo=
th:</div><div dir=3D"auto"><br></div><div dir=3D"auto">1) Traditional jets =
typically only have one mode of failure - they kink in place and freeze ope=
n, and fuel flows out the overflow pipes.=C2=A0 This only happens on startu=
p and if you are paying attention you can stop it with a tap of the mallot.=
=C2=A0 This failure doesn=E2=80=99t happen very often but fuel can be waste=
d.=C2=A0 The failure is minimized with proper adjustment.=C2=A0 Traditional=
 jets handle crud in the fuel generally quite well.</div><div dir=3D"auto">=
<br></div><div dir=3D"auto">2) Grose Jets can fail both closed and open.=C2=
=A0 They are VERY sensitive to crud in the fuel and if they fail open, some=
times tapping with a mallot doesn=E2=80=99t work because something is jamme=
d in the balls.=C2=A0 Grose jets can also fail closed if the little ball ge=
ts stuck.=C2=A0 I=E2=80=99ve had both modes of failure with them.</div><div=
 dir=3D"auto"><br></div><div dir=3D"auto">In my use experience I haven=E2=
=80=99t seen much difference between the two, and having had Grose Jets shu=
t off my fuel in the past I tend to favor the traditional style, esp when t=
hey have the little spring loaded peg and rubber tip.</div><div dir=3D"auto=
"><br></div><div dir=3D"auto">Best,</div><div dir=3D"auto"><br></div><div d=
ir=3D"auto">Alan</div><div><div class=3D"gmail_quote"><blockquote class=3D"=
gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;border=
-left-style:solid;padding-left:1ex;border-left-color:rgb(204,204,204)" dir=
=3D"auto">
<br>
</blockquote></div></div>
</blockquote></div></div>

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