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--94eb2c0723a6fc60dc0541346d02
I still have several NOS rubber items for my BN1 that are in near perfect
condition.
Curt
On Nov 13, 2016 2:07 PM, <michael.salter@gmail.com> wrote:
> Hi Dave,
> Not sure how relevant this is but I have noticed that most rubber to steel
> bonding seems to start at the edges, particularly on original components.
> I am inclined to believe that a large contributing factor in the steel to
> rubber bond is actually caused by corrosion of the steel.
> Also usually it seems that the oxidation of the rubber is a quite thin
> layer and the underlying rubber is still in perfect condition although very
> old.
> Of course this is not always the case as very deep cracks in the engine
> mount rubber blocks are not uncommon.
> Just my observations.
> Michael S
> BN1 #174
> With original BSF thread engine mounts..
>
> Correct diagnosis is half of the repair.
>
>
>
> On Sun, Nov 13, 2016 at 11:20 AM -0500, "David Porter" <
> frogeye@porterscustom.com> wrote:
>
> Rubber continues to vulcanize throughout it's life time. As such it
>> hardens and shrinks and eventually pulls the adhesive away from the mounts.
>> Perhaps, one could use the new body panel epoxy's to reattach the rubber,
>> but you would still have a very hard rubber buffer....
>>
>> dp
>>
>> On 11/12/2016 5:24 PM, WILLIAM B LAWRENCE wrote:
>>
>> The current thought is that rubber ages as well as being detrimentally
>> affected by UV and environmental ozone. As such we are told not to use
>> tires that are over six years old. I think the same thing happens to other
>> rubber parts as well. I've installed rubber plugs and grommets on my BN1
>> that deteriorated with 6 months of installation. For that reason I won't
>> buy "NOS" rubber parts and I think any new rubber parts should be date
>> coded.
>> ------------------------------
>> *From:* Healeys <healeys-bounces@autox.team.net>
>> <healeys-bounces@autox.team.net> on behalf of Bob Spidell
>> <bspidell@comcast.net> <bspidell@comcast.net>
>> *Sent:* Saturday, November 12, 2016 2:24:11 PM
>> *To:* Healeys
>> *Subject:* [Healeys] Engine Mounts
>>
>> The engine mounts on my BJ8--whose engine I am overhauling--had the
>> rubber part separating from their metal backing. This didn't surprise
>> me, as they have 25+ years and 120K+ miles on them. However, I got under
>> the BN2 the other day and noticed its mounts were separating as well,
>> and these only have a few years and a few hundred miles on them.
>> Apparently--like most rubber or rubber/metal parts from contemporary
>> suppliers--they are crap. Anyone know a source for quality, durable
>> engine mounts for Big Healeys?
>>
>> TIA,
>>
>> Bob
>>
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>>
>>
>> _______________________________________________
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>>
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>>
>>
>> --
>> Dave Porter Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM 87107
>> 505-352-1378 Go HERE: my world www.porterbikes.com/
>>
>
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>
--94eb2c0723a6fc60dc0541346d02
Content-Transfer-Encoding: quoted-printable
<p dir=3D"ltr">I still have several NOS rubber items for my BN1 that are in=
near perfect condition.</p>
<p dir=3D"ltr">Curt </p>
<div class=3D"gmail_extra"><br><div class=3D"gmail_quote">On Nov 13, 2016 2=
:07 PM, <<a href=3D"mailto:michael.salter@gmail.com";>michael.salter@gma=
il.com</a>> wrote:<br type=3D"attribution"><blockquote class=3D"gmail_qu=
ote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex=
"><div><p dir=3D"auto" style=3D"text-align:left;margin-top:25px;margin-bott=
om:25px;font-family:sans-serif;font-size:11pt;color:black;background-color:=
white">Hi Dave,<br>
Not sure how relevant this is but I have noticed that most rubber to steel =
bonding seems to start at the edges, particularly on original components. <=
br>
I am inclined to believe that a large contributing factor in the steel to r=
ubber bond is actually caused by corrosion of the steel.<br>
Also usually it seems that the oxidation of the rubber is a quite thin laye=
r and the underlying rubber is still in perfect condition although very old=
.<br>
Of course this is not always the case as very deep cracks in the engine mou=
nt rubber blocks are not uncommon. <br>
Just my observations. <br>
Michael S <br>
BN1 #174<br>
With original BSF thread engine mounts..<br><br></p>
<p dir=3D"auto" style=3D"text-align:left;margin-top:25px;margin-bottom:25px=
;font-family:sans-serif;font-size:11pt;color:black;background-color:white">=
Correct diagnosis is half of the repair.<br>
</p>
<br><br><br>
<div class=3D"gmail_quote">On Sun, Nov 13, 2016 at 11:20 AM -0500, "Da=
vid Porter" <span dir=3D"ltr"><<a href=3D"mailto:frogeye@porterscus=
tom.com" target=3D"_blank">frogeye@porterscustom.com</a>></span> wrote:<=
br>
<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">
<div dir=3D"3D"ltr"">
=20
=20
=20
=20
<p>Rubber continues to vulcanize throughout it's life time. As such
it hardens and shrinks and eventually pulls the adhesive away from
the mounts. Perhaps, one could use the new body panel epoxy's to
reattach the rubber, but you would still have a very hard rubber
buffer....</p>
<p>dp<br>
</p>
<br>
<div class=3D"m_3540305834808952249moz-cite-prefix">On 11/12/2016 5:24 =
PM, WILLIAM B
LAWRENCE wrote:<br>
</div>
<blockquote type=3D"cite">
=20
=20
=20
=20
=20
=20
<div dir=3D"ltr">
<div id=3D"m_3540305834808952249x_divtagdefaultwrapper" dir=3D"ltr"=
style=3D"font-size:12pt;color:#000000;font-family:Calibri,Arial,Helvetica,=
sans-serif">
<p>The current thought is that rubber ages as well as being
detrimentally affected by UV and environmental ozone. As
such we are told not to use tires that are over six years
old. I think the same thing happens to other rubber parts as
well. I've installed rubber plugs and grommets on my BN1
that deteriorated with 6 months of installation. For that
reason I won't buy "NOS" rubber parts and I think=
any new
rubber parts should be date coded.</p>
</div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"m_3540305834808952249x_divRplyFwdMsg" dir=3D"ltr"><font =
style=3D"font-size:11pt" face=3D"Calibri, sans-serif" color=3D"#000000"><b>=
From:</b>
Healeys <a class=3D"m_3540305834808952249moz-txt-link-rfc2396E"=
href=3D"mailto:healeys-bounces@autox.team.net"; target=3D"_blank"><heale=
ys-bounces@autox.team.<wbr>net></a> on behalf of
Bob Spidell <a class=3D"m_3540305834808952249moz-txt-link-rfc23=
96E" href=3D"mailto:bspidell@comcast.net"; target=3D"_blank"><bspidell@co=
mcast.net></a><br>
<b>Sent:</b> Saturday, November 12, 2016 2:24:11 PM<br>
<b>To:</b> Healeys<br>
<b>Subject:</b> [Healeys] Engine Mounts</font>
<div>=C2=A0</div>
</div>
</div>
<font size=3D"2"><span style=3D"font-size:10pt">
<div class=3D"m_3540305834808952249PlainText">The engine mounts o=
n my BJ8--whose
engine I am overhauling--had the
<br>
rubber part separating from their metal backing.=C2=A0 This
didn't surprise <br>
me, as they have 25+ years and 120K+ miles on them. However,
I got under <br>
the BN2 the other day and noticed its mounts were separating
as well, <br>
and these only have a few years and a few hundred miles on
them.=C2=A0=C2=A0 <br>
Apparently--like most rubber or rubber/metal parts from
contemporary <br>
suppliers--they are crap. Anyone know a source for quality,
durable <br>
engine mounts for Big Healeys?<br>
<br>
TIA,<br>
<br>
Bob<br>
<br>
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</blockquote>
<br>
<div class=3D"m_3540305834808952249moz-signature">-- <br>
Dave Porter
Porter Custom Bicycles
2909 Arno St. NE
Albuquerque, NM 87107
<a href=3D"tel:505-352-1378" value=3D"+15053521378" target=3D"_blank"=
>505-352-1378</a>
Go HERE: my world <a class=3D"m_3540305834808952249moz-txt-link-abbre=
viated" href=3D"http://www.porterbikes.com/"; target=3D"_blank">www.porterbi=
kes.com/</a>
</div>
=20
</div>
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