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Re: [Healeys] HD8 Su's

To: Roger Grace <roggrace@telus.net>
Subject: Re: [Healeys] HD8 Su's
From: richard mayor <boyracer466@gmail.com>
Date: Tue, 15 Jun 2021 10:18:34 -0700
Cc: Healeys <healeys@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <CALPtYiNFA8SKHmLBL=C9Yms5EUNoQpjfHcv2RhKmMOjdgU=Zhw@mail.gmail.com>
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What change in acceleration do you feel that prompts you to check the fluid
level?

On Tue, Jun 15, 2021 at 9:50 AM Roger Grace via Healeys <
healeys@autox.team.net> wrote:

> 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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<div dir=3D"ltr">What change in acceleration do you feel that prompts you t=
o check the fluid level?<br></div><br><div class=3D"gmail_quote"><div dir=
=3D"ltr" class=3D"gmail_attr">On Tue, Jun 15, 2021 at 9:50 AM Roger Grace v=
ia Healeys &lt;<a href=3D"mailto:healeys@autox.team.net";>healeys@autox.team=
.net</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"mar=
gin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1=
ex"><div dir=3D"ltr"><div>For the SU experts ..<br></div><div>Have posted a=
bout this problem before=C2=A0 - and no, it has not gone away.</div><div>Bo=
ught new (not rebuilt) HD8 carbs from SU/Burlen about 7k miles ago.</div><d=
iv>Problem is excessive use of damper oil.</div><div>Have to top up about e=
very 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 a=
ccel. 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 - p=
n=20
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 class=
ic clunk when raised 1/8 in.<br></div><div>Perhaps this is normal ? maybe o=
ther owners don&#39;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>
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