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Must jump in here. Just to muddy the waters a bit, although not relevant to
Big Healeys, the SU H1 carburettor on Morris Minor and Sprite MkI (Frogeye)
do not have piston damper springs. Springs with a red paint splash started
on the MkIIs and Midget MkI.
Carry on, I'm learning a lot!
Dave W
'59 :()
'59 MGA 1500
"Pay It Forward"
On Fri, Dec 27, 2024, 3:16=E2=80=AFPM rct2bnc--- via Healeys <healeys@autox=
.team.net>
wrote:
> I have also run into this problem, but not with any of my Austin Healeys.
> I have a tri-carb set up on an 1959 AC Ace. When I opened the carbs to
> check and add oil, there was only a brass cap with no damper mechanism.
> Also after removing the chamber I found no spring and a solid piston rod
> with no place to put the oil. Luckily, I have a 2003 SU reference manual
> for most British cars using SU carbs. Each make is broken down by year,
> type of carb, needles etc. but includes all miscellaneous parts like
> damper, jet, float, service kit #s, and more. It listed at 1.9 litre Well=
er
> six-cylinder engine from 1933- 1952 - all the triple carb set ups. Under
> damper it states: CAP; for piston spring there is no entry. Without going
> through the whole manual, you can see that many, many pre-1952 cars, such
> as: Alvis, Aston-Martin, Armstorng-Siddeley, Bentley-Rolls Royce,
> Frazer-Nash have CAP and no springs. However, under the listings for all
> Austin Healey cars (including Sprites) from 1952 - 1974, all carbs on tho=
se
> cars show dampers and springs, without exception. This includes 1954-56 1=
00
> M Le Mans and 1955-56 100 S 4 cyl cars.
>
> As for the CAP unit, the manual shows 7 variants, from plain brass
> hexagon, some knurled brass round and some with stamps for OIL RESERVOIR =
or
> THIN OIL. They also list 5 different dampers with both brass and plastic
> caps.
>
> I can scan the Austin Healey section and attach for the group, if there i=
s
> interest.
>
> Ben Cohen
>
> BN1
> BN7
> BJ8
>
>
>
> On Tuesday, December 24, 2024 at 10:17:52 AM MST, healeymanjim via Healey=
s
> <healeys@autox.team.net> wrote:
>
>
> ran into something have not seen before. cleaning the carbs on an MGTC
> and discovered there is no damper. there is a plastic cap and a 3/16 hol=
e
> approx 1/4 inch deep in top of piston rod. Moss shows a damper and so do=
es
> the workshop manual. any ideas what i have here?
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>
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>
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<div dir=3D"auto">Must jump in here. Just to muddy the waters a bit, althou=
gh not relevant to Big Healeys, the SU H1 carburettor on Morris Minor and S=
prite MkI (Frogeye) do not have piston damper springs. Springs with a red p=
aint splash started on the MkIIs and Midget MkI.<div dir=3D"auto">Carry on,=
I'm learning a lot!</div><div dir=3D"auto"><br></div><div dir=3D"auto"=
>Dave W</div><div dir=3D"auto">'59 :()</div><div dir=3D"auto">'59 M=
GA 1500</div><div dir=3D"auto">"Pay It Forward"</div></div><br><d=
iv class=3D"gmail_quote gmail_quote_container"><div dir=3D"ltr" class=3D"gm=
ail_attr">On Fri, Dec 27, 2024, 3:16=E2=80=AFPM rct2bnc--- via Healeys <=
<a href=3D"mailto:healeys@autox.team.net";>healeys@autox.team.net</a>> wr=
ote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;=
border-left:1px #ccc solid;padding-left:1ex"><div><div style=3D"font-family=
:Tahoma,Arial,Helvetica,sans-serif;font-size:16px"><div></div>
<div dir=3D"ltr">I have also run into this problem, but not with an=
y of my Austin Healeys. I have a tri-carb set up on an 1959 AC Ace. When I =
opened the carbs to check and add oil, there was only a brass cap with no d=
amper mechanism. Also after removing the chamber I found no spring and a so=
lid piston rod with no place to put the oil. Luckily, I have a 2003 SU refe=
rence manual for most British cars using SU carbs. Each make is broken down=
by year, type of carb, needles etc. but includes all miscellaneous parts l=
ike damper, jet, float, service kit #s, and more. It listed at 1.9 litre We=
ller six-cylinder engine from 1933- 1952 - all the triple carb set ups. Und=
er damper it states: CAP; for piston spring there is no entry. Without goin=
g through the whole manual, you can see that many, many pre-1952 cars, such=
as: Alvis, Aston-Martin, Armstorng-Siddeley, Bentley-Rolls Royce, Frazer-N=
ash have CAP and no springs. However, under the listings for all Austin Hea=
ley cars (including Sprites) from 1952 - 1974, all carbs on those cars show=
dampers and springs, without exception. This includes 1954-56 100 M Le Man=
s and 1955-56 100 S 4 cyl cars.=C2=A0</div><div dir=3D"ltr"><br></div><div =
dir=3D"ltr">As for the CAP unit, the manual shows 7 variants, from plain br=
ass hexagon, some knurled brass round and some with stamps for OIL RESERVOI=
R or THIN OIL. They also list 5 different dampers with both brass and plast=
ic caps.=C2=A0</div><div dir=3D"ltr"><br></div><div dir=3D"ltr">I can scan =
the Austin Healey section and attach for the group, if there is interest.</=
div><div dir=3D"ltr"><br></div><div dir=3D"ltr">Ben Cohen</div><div dir=3D"=
ltr"><br></div><div dir=3D"ltr">BN1</div><div dir=3D"ltr">BN7</div><div dir=
=3D"ltr">BJ8</div><div dir=3D"ltr"><br></div><div dir=3D"ltr"><br></div><di=
v><br></div>
=20
</div><div id=3D"m_-2389197874191351743ydp85afd30eyahoo_quoted_5738=
530680"><div style=3D"font-family:Tahoma,Arial,Helvetica,sans-serif;font-si=
ze:16px">
<div style=3D"font-family:'Helvetica Neue',Helvetica,Ar=
ial,sans-serif;font-size:13px;color:#26282a">
=20
<div>
On Tuesday, December 24, 2024 at 10:17:52 AM MST, h=
ealeymanjim via Healeys <<a href=3D"mailto:healeys@autox.team.net"; targe=
t=3D"_blank" rel=3D"noreferrer">healeys@autox.team.net</a>> wrote:
</div>
</div><div style=3D"font-family:'Helvetica Neue',He=
lvetica,Arial,sans-serif;font-size:13px;color:#26282a;border-left:1px solid=
#ccc;padding-left:8px;margin:0px 0px 0px 8px">
<div><br></div><div><br></div>
<div><div dir=3D"ltr">ran into something have not seen befo=
re.=C2=A0 cleaning the carbs on an MGTC and discovered there is no damper.=
=C2=A0 there is a plastic cap and a 3/16 hole approx 1/4 inch deep in top o=
f piston rod.=C2=A0 Moss shows a damper and so does the workshop manual.=C2=
=A0 any ideas what i have here?<br></div><div dir=3D"ltr">_________________=
______________________________<br></div><div dir=3D"ltr">Support Team.Net <=
a href=3D"http://www.team.net/donate.html"; rel=3D"nofollow noreferrer" targ=
et=3D"_blank">http://www.team.net/donate.html</a><br></div><div dir=3D"ltr"=
>Suggested annual donation=C2=A0 $12.75<br></div><div dir=3D"ltr"><br></div=
><div dir=3D"ltr">Archive: <a href=3D"http://www.team.net/pipermail/healeys=
" rel=3D"nofollow noreferrer" target=3D"_blank">http://www.team.net/piperma=
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<br>
</blockquote></div>
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