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Thank you.
Yes my feeling is that these dampers may as you say, be incorrect.
They are on the SU parts list though and what they are telling me to use.
What is interesting is that the brass capped ones that I have, do not have
any identifying part numbers.
This makes me suspicious.
I suppose they are identified bu specific dimensions,
Will try to get some plastic topped ones for a trial.
rg
rg
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On Tue, Jun 15, 2021 at 2:41 PM <gradea1@charter.net> wrote:
> Roger-those are the wrong dampners! The HD8 used the plastic topped ones
> and the length of them, compared to the brass, may be different- thus the
> oil slipping by. Brass ones used on earlier carbs. Hank
>
> -----------------------------------------
> From: "Roger Grace via Healeys"
> To: "Healeys"
> Cc:
> Sent: Tuesday June 15 2021 9:53:07AM
> Subject: [Healeys] HD8 Su's
>
> For the SU experts ..
> Have posted about this problem before - and no, it has not gone away.
> Bought new (not rebuilt) HD8 carbs from SU/Burlen about 7k miles ago.
> Problem is excessive use of damper oil.
> Have to top up about every 1.5 tanks of gas usage.
> Ultra careful about filling properly and to feel resistance about 1/2 in
> above the thread.
> Have tried all grades of oil from 20 wt to thick gear oil with no change
> apart from accel. response times. Currently using SAE 30 nd.
> SU have no real ideas either.
> They are encouraging me to purchase new dampers - pn AUC 8112HB ... pricey
> too.
> I am not convinced that will solve it but will do so.
> There is some very minor scuffing on the valves. See photo.
> The pistons drop freely and there is the classic clunk when raised 1/8 in.
> Perhaps this is normal ? maybe other owners don't check their dashpots as
> frequently ? heavier springs to limit movement ?
> any ideas as to what gives most welcome ?
> rg
>
>
>
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Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div>Thank you.</div><div>Yes my feeling is that these dam=
pers may as you say, be incorrect.</div><div>They are on the SU parts list =
though and what they are telling me to use.<br></div><div>What is interesti=
ng is that the brass capped ones that I have, do not have any identifying p=
art numbers.</div><div>This makes me suspicious.</div><div>I suppose they a=
re identified bu specific dimensions,<br></div><div>Will try to get some pl=
astic topped ones for a trial.</div><div>rg<br></div><div>rg<br></div><div>=
<br></div><div><br></div></div><div id=3D"DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9F=
DF2"><br>
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<td
style=3D"width:470px;padding-top:12px;color:#41424e;font-size:13px;fo=
nt-family:Arial,Helvetica,sans-serif;line-height:18px">Virus-free. <a href=
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</table><a href=3D"#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2" width=3D"1" heigh=
t=3D"1"></a></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"=
gmail_attr">On Tue, Jun 15, 2021 at 2:41 PM <<a href=3D"mailto:gradea1@c=
harter.net">gradea1@charter.net</a>> wrote:<br></div><blockquote class=
=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rg=
b(204,204,204);padding-left:1ex"><div>Roger-those are the wrong dampners!=
=C2=A0 The HD8 used the plastic topped ones and the length of them, compare=
d to the brass, may be different- thus the oil slipping by. Brass ones used=
on earlier carbs.=C2=A0 Hank<br><br><div></div><p>------------------------=
-----------------</p>From: "Roger Grace via Healeys" <u></u><br>T=
o: "Healeys"<br>Cc: <br>Sent: Tuesday June 15 2021 9:53:07AM<br>S=
ubject: [Healeys] HD8 Su's<br><br>
<div dir=3D"ltr">
<div>For the SU experts ..<br></div>
<div>Have posted about this problem before=C2=A0 - and no, it has
not gone away.</div>
<div>Bought new (not rebuilt) HD8 carbs from SU/Burlen about 7k
miles ago.</div>
<div>Problem is excessive use of damper oil.</div>
<div>Have to top up about every 1.5 tanks of gas usage.</div>
<div>Ultra careful about filling properly and to feel resistance
about 1/2 in above the thread.</div>
<div>Have tried all grades of oil from 20 wt to thick gear oil with
no change apart from accel. response times. Currently using SAE 30
nd.</div>
<div>SU have no real ideas either.</div>
<div>They are encouraging me to purchase new dampers - pn AUC
8112HB ... pricey too.<br></div>
<div>I am not convinced that will solve it but will do
so.<br></div>
<div>There is some very minor scuffing on the valves. See
photo.</div>
<div>The pistons drop freely and there is the classic clunk when
raised 1/8 in.<br></div>
<div>Perhaps this is normal ? maybe other owners don't check their
dashpots as frequently ? heavier springs to limit movement
?<br></div>
<div>any ideas as to what gives most welcome ?</div>
<div>rg<br></div>
<div><br></div>
<div><br></div>
</div>
<u></u></div>
</blockquote></div>
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