Subject: Re: [Healeys] carb damper

From: Bob Haskell <[email-masked]>
Date: Wed, 25 Dec 2024 08:29:51 -0500

No specification tags on the carbs? Burlen/SU Carb's website gives AUC 
429T (H2) for the TB and TC, with damper.

Mike Harvey's book, "Skinner Union" states that the hydraulic damper was 
introduced in 1938.  The dashpot suction pistons prior to that had solid 
guide rod.  They were made of zinc alloy Mazak from 19218 to 1939 and 
brass from 1925 to 1948.

Bob Haskell
Austin-Healey 3000 roadster registrar

On 12/25/24 01:41, healeymanjim via Healeys wrote:
> i am sorry i did not explain myself better.  these carbs have no tube to put a damper into.  the piston rod is solid metal with a small hole drilled in the top.  there is no rod attached to the cap and the cap has not suffered damage.   think it is an older style piston that has been stuck in the carbs.  still confused.
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From: David Nock via Healeys <[email-masked]>
Date: Wed, 25 Dec 2024 07:01:50 -0800

These carb pistons are also heavy y brass and there is no spring. Not sure which cars actually used them, but I have seen them on early MGs.  The brass cap without the piston is correct and the hole is to allow air to move in and out as the piston moves.

David Nock
British Car Specialists

> On Dec 25, 2024, at 5:29 AM, Bob Haskell <[email-masked]> wrote:
> 
> No specification tags on the carbs? Burlen/SU Carb's website gives AUC 429T (H2) for the TB and TC, with damper.
> 
> Mike Harvey's book, "Skinner Union" states that the hydraulic damper was introduced in 1938.  The dashpot suction pistons prior to that had solid guide rod.  They were made of zinc alloy Mazak from 19218 to 1939 and brass from 1925 to 1948.
> 
> Bob Haskell
> Unsubscribe/Manage: http://autox.team.net/mailman/options/healeys/[email-masked]
> 

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---

From: warthodson--- via Healeys <[email-masked]>
Date: Wed, 25 Dec 2024 17:34:12 +0000 (UTC)

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 Is it possible that this was a racing modification purported to improve ac=
celeration?Gary Hodson
    On Wednesday, December 25, 2024 at 01:08:52 AM CST, healeymanjim via He=
aleys <[email-masked]> wrote:  =20

 i am sorry i did not explain myself better.=C2=A0 these carbs have no tube=
 to put a damper into.=C2=A0 the piston rod is solid metal with a small hol=
e drilled in the top.=C2=A0 there is no rod attached to the cap and the cap=
 has not suffered damage.=C2=A0 think it is an older style piston that has =
been stuck in the carbs.=C2=A0 still confused.
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 =20
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<html><head></head><body><div class=3D"ydpb22b48d4yahoo-style-wrap" style=
=3D"font-family:Comic Sans MS, sans-serif;font-size:16px;"><div></div>
        <div dir=3D"ltr" data-setdir=3D"false">Is it possible that this was=
 a racing modification purported to improve acceleration?</div><div dir=3D"=
ltr" data-setdir=3D"false">Gary Hodson</div><div><br></div>
       =20
        </div><div id=3D"ydp691d13cayahoo_quoted_5332066337" class=3D"ydp69=
1d13cayahoo_quoted"><div class=3D"ydp691d13cayahoo-style-wrap" style=3D"fon=
t-family:Comic Sans MS, sans-serif;font-size:16px;">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div class=3D"ydp691d13caquoted-text-header">
                        On Wednesday, December 25, 2024 at 01:08:52 AM CST,=
 healeymanjim via Healeys &lt;[email-masked]&gt; wrote:
                    </div>
                </div><div style=3D"font-family:'Helvetica Neue', Helvetica=
, Arial, sans-serif;font-size:13px;color:#26282a;border-left: 1px solid #cc=
c;padding-left: 8px;margin: 0px 0px 0px 8px" class=3D"ydp691d13cainline_rep=
ly_quote_container" data-split-quote-node=3D"true">
                <div><br></div><div><br></div>
                <div><div dir=3D"ltr">i am sorry i did not explain myself b=
etter.&nbsp; these carbs have no tube to put a damper into.&nbsp; the pisto=
n rod is solid metal with a small hole drilled in the top.&nbsp; there is n=
o rod attached to the cap and the cap has not suffered damage.&nbsp;  think=
 it is an older style piston that has been stuck in the carbs.&nbsp; still =
confused.<br></div><div dir=3D"ltr">_______________________________________=
________<br></div><div dir=3D"ltr">Support Team.Net <a href=3D"http://www.t=
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