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Yes Alan, absolutely correct. Depending upon where you clamp the element
there can be a VERY small orifice which, with that backplate, was probably
sufficient to produce the stain.
Frankly I'm stunned that this would have got by "Engineering ".
If it wasn't for the fact that I have fitted a PCV system to this engine I
would most definitely be taking steps to correct the situation.
M
On Thu., Aug. 10, 2023, 8:19 a.m. Alan Seigrist, <healey.nut@gmail.com>
wrote:
> looking at your picture of the filter assembly backplate it seems like
> there is a little bit of oil blowby inside of the seal, so the filter
> itself probably sits up just enough for air to get by. Eitherway, looks
> like a nice way to maximise oil leaks!
>
> On Thu, Aug 10, 2023 at 1:51=E2=80=AFAM Michael Salter <michaelsalter@gma=
il.com>
> wrote:
>
>> Okay, so back to the original question.
>> How come the filter blocks off the engine breather tube?
>>
>> M
>>
>> On Wed., Aug. 9, 2023, 12:01 p.m. Jean Caron, <
>> vintage_roadster_restoration@hotmail.com> wrote:
>>
>>> Michael,
>>> I have the same type of elements in the BN2 I am currently restoring.
>>>
>>> Jean
>>>
>>>
>>>
>>> Sent from my Bell Samsung device over Canada=E2=80=99s largest network.
>>> ------------------------------
>>> *From:* Healeys <healeys-bounces@autox.team.net> on behalf of Michael
>>> Salter <michaelsalter@gmail.com>
>>> *Sent:* Wednesday, August 9, 2023 7:11:33 AM
>>> *To:* healeys@autox.team.net <healeys@autox.team.net>
>>> *Subject:* [Healeys] Fwd: 100 air cleaners.
>>>
>>> Hi John,
>>> This is the element that I'm talking about. It is a cleanable type and
>>> is what was in this car with less than 30K miles.
>>> The elements have a "rubber" ring on each side and the filter medium in
>>> somewhat like a pot scrub.
>>> Is that not the original type?
>>> M
>>>
>>> On Wed., Aug. 9, 2023, 5:02 a.m. john harper, <ah100tech@gmail.com>
>>> wrote:
>>>
>>> Michael
>>>
>>> I cannot be sure but it looks as if this is fitted with a dry filter
>>> element. The originals had an oil-wetted element that had to be washed =
out
>>> in paraffin from time to time and then re-wetted. Rather messy.
>>>
>>> I don't have a filter to hand but perhaps the wetted type did not block
>>> the breather pipe.
>>>
>>> All the best
>>>
>>> On Wed, 9 Aug 2023 at 05:22, Michael Salter <michaelsalter@gmail.com>
>>> wrote:
>>>
>>> This picture shows an original BN1/2 front air cleaner back plate and a=
n
>>> original air filter element.
>>> Interestingly when this unit is assembled the "O" ring of the element
>>> almost completely blocks off the engine breather tube in the back plate
>>> which renders the engine breather system inoperative.
>>> Bit odd?
>>>
>>> M
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<div dir=3D"auto">Yes Alan, absolutely correct.=C2=A0 Depending upon where =
you clamp the element there can be a VERY small orifice which, with that ba=
ckplate, was probably sufficient to produce the stain.<div dir=3D"auto">Fra=
nkly I'm stunned that this would have got by "Engineering ".<=
/div><div dir=3D"auto">If it wasn't for the fact that I have fitted a P=
CV system to this engine I would most definitely be taking steps to correct=
the situation.=C2=A0</div><div dir=3D"auto"><br></div><div dir=3D"auto">M<=
/div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_a=
ttr">On Thu., Aug. 10, 2023, 8:19 a.m. Alan Seigrist, <<a href=3D"mailto=
:healey.nut@gmail.com">healey.nut@gmail.com</a>> wrote:<br></div><blockq=
uote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc =
solid;padding-left:1ex"><div dir=3D"ltr">looking at your picture of the fil=
ter assembly backplate it seems like there is a little bit of oil blowby in=
side of the seal, so the filter itself probably sits up just enough for air=
to get by.=C2=A0 Eitherway, looks like a nice way to maximise=C2=A0oil lea=
ks!</div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_att=
r">On Thu, Aug 10, 2023 at 1:51=E2=80=AFAM Michael Salter <<a href=3D"ma=
ilto:michaelsalter@gmail.com" target=3D"_blank" rel=3D"noreferrer">michaels=
alter@gmail.com</a>> wrote:<br></div><blockquote class=3D"gmail_quote" s=
tyle=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);pad=
ding-left:1ex"><div dir=3D"auto">Okay,=C2=A0 so back to the original questi=
on.=C2=A0<div dir=3D"auto">How come the filter blocks off the engine breath=
er tube?</div><div dir=3D"auto"><br></div><div dir=3D"auto">M</div></div><b=
r><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed.,=
Aug. 9, 2023, 12:01 p.m. Jean Caron, <<a href=3D"mailto:vintage_roadste=
r_restoration@hotmail.com" target=3D"_blank" rel=3D"noreferrer">vintage_roa=
dster_restoration@hotmail.com</a>> wrote:<br></div><blockquote class=3D"=
gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(20=
4,204,204);padding-left:1ex">
<div>
<div dir=3D"auto">Michael,</div>
<div dir=3D"auto">I have the same type of elements in the BN2 I am currentl=
y restoring.</div>
<div dir=3D"auto"><br>
</div>
<div dir=3D"auto">Jean</div>
<div dir=3D"auto"><br>
</div>
<div dir=3D"auto"><br>
</div>
<div><br>
</div>
<div dir=3D"auto" id=3D"m_8323131398734701731m_-5192876640207363315m_-52393=
67777631291642ms-outlook-mobile-signature">Sent from my Bell Samsung device=
over Canada=E2=80=99s largest network.</div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"m_8323131398734701731m_-5192876640207363315m_-523936777763129164=
2divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" style=3D"fon=
t-size:11pt" color=3D"#000000"><b>From:</b> Healeys <<a href=3D"mailto:h=
ealeys-bounces@autox.team.net" rel=3D"noreferrer noreferrer" target=3D"_bla=
nk">healeys-bounces@autox.team.net</a>> on behalf of Michael Salter <=
<a href=3D"mailto:michaelsalter@gmail.com"; rel=3D"noreferrer noreferrer" ta=
rget=3D"_blank">michaelsalter@gmail.com</a>><br>
<b>Sent:</b> Wednesday, August 9, 2023 7:11:33 AM<br>
<b>To:</b> <a href=3D"mailto:healeys@autox.team.net"; rel=3D"noreferrer nore=
ferrer" target=3D"_blank">healeys@autox.team.net</a> <<a href=3D"mailto:=
healeys@autox.team.net" rel=3D"noreferrer noreferrer" target=3D"_blank">hea=
leys@autox.team.net</a>><br>
<b>Subject:</b> [Healeys] Fwd: 100 air cleaners.</font>
<div>=C2=A0</div>
</div>
<div>
<div dir=3D"auto">
<div dir=3D"auto">Hi John,=C2=A0<br>
</div>
<div>
<div dir=3D"auto">
<div dir=3D"auto">This is the element that I'm talking about.=C2=A0 It =
is a cleanable type and is what was in this car with less than 30K miles.=
=C2=A0</div>
<div dir=3D"auto">The elements have a "rubber" ring on each side =
and the filter medium in somewhat like a pot scrub.</div>
<div dir=3D"auto">Is that not the original type?</div>
<div dir=3D"auto">M</div>
</div>
<br>
<div>
<div dir=3D"ltr">On Wed., Aug. 9, 2023, 5:02 a.m. john harper, <<a href=
=3D"mailto:ah100tech@gmail.com"; rel=3D"noreferrer noreferrer noreferrer nor=
eferrer noreferrer" target=3D"_blank">ah100tech@gmail.com</a>> wrote:<br=
>
</div>
<blockquote style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">
<div dir=3D"ltr">Michael
<div><br>
</div>
<div>I cannot be sure but it looks as if this is fitted with a dry filter e=
lement. The originals had an oil-wetted element that had to be washed out i=
n paraffin from time to time and then re-wetted. Rather messy.</div>
<div><br>
</div>
<div>I don't have a filter to hand but perhaps the wetted type did not =
block the breather=C2=A0pipe.</div>
<div><br>
</div>
<div>All the best</div>
</div>
<br>
<div>
<div dir=3D"ltr">On Wed, 9 Aug 2023 at 05:22, Michael Salter <<a href=3D=
"mailto:michaelsalter@gmail.com"; rel=3D"noreferrer noreferrer noreferrer no=
referrer noreferrer noreferrer" target=3D"_blank">michaelsalter@gmail.com</=
a>> wrote:<br>
</div>
<blockquote style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204=
,204,204);padding-left:1ex">
<div dir=3D"auto">This picture shows an original BN1/2 front air cleaner ba=
ck plate and an original air filter element.=C2=A0
<div dir=3D"auto">Interestingly when this unit is assembled the "O&quo=
t; ring of the element almost completely blocks off the engine breather tub=
e in the back plate which renders the engine breather system inoperative.=
=C2=A0</div>
<div dir=3D"auto">Bit odd?</div>
<div dir=3D"auto"><br>
</div>
<div dir=3D"auto">M</div>
</div>
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