Re: [Healeys] 100-4 engine head gasket?

[Alan Seigrist <healey.nut@gmail.com>]

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Great suggestion Michael =F0=9F=98=B1=F0=9F=98=B1=F0=9F=98=B1

On Mon, Jan 25, 2021 at 10:45 PM Michael Salter <michaelsalter@gmail.com>
wrote:

> Maybe a bucket of BarsLeaks =F0=9F=A4=A3=F0=9F=A4=A3=F0=9F=A4=A3
>
> On Mon., Jan. 25, 2021, 9:28 a.m. Michael Oritt, <michael.oritt@gmail.com=
>
> wrote:
>
>> Probably blown gasket at the 3-4 bridge.  My original head suffered from
>> erosion of the metal at the 1-2 bridge, allowing the gasket to blow.  I =
had
>> it built up enough to work for a while but eventually replaced the head
>> with a DWR AL model.
>>
>> Best--Michael Oritt
>>
>> On Mon, Jan 25, 2021 at 4:55 AM Alan Seigrist <healey.nut@gmail.com>
>> wrote:
>>
>>> All -
>>>
>>> My A90 just started running weird.  So I took a compression tester and
>>> I'm getting (note the A90 is lower compression than the 100):
>>>
>>> 1 - 135 psi
>>> 2 - 135 psi
>>> 3 - 60 psi
>>> 4 - 60 psi
>>>
>>> When I put the compression tester on number 3, I get blow back through
>>> #4 spark plug port.  Then when I put it on #4 I get blow back through t=
he
>>> #3 spark plug port.
>>>
>>> Seems to me it's just a blown head gasket.... am I correct?  as far as
>>> I'm aware, these heads usually crack between 2 & 3, correct?
>>>
>>> TIA
>>>
>>> Alan
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>>

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<div dir=3D"ltr">Great suggestion Michael=C2=A0=F0=9F=98=B1=F0=9F=98=B1=F0=
=9F=98=B1</div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gma=
il_attr">On Mon, Jan 25, 2021 at 10:45 PM Michael Salter &lt;<a href=3D"mai=
lto:michaelsalter@gmail.com">michaelsalter@gmail.com</a>&gt; wrote:<br></di=
v><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;borde=
r-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"auto">Maybe=
 a bucket of BarsLeaks =F0=9F=A4=A3=F0=9F=A4=A3=F0=9F=A4=A3</div><br><div c=
lass=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Mon., Jan. 25=
, 2021, 9:28 a.m. Michael Oritt, &lt;<a href=3D"mailto:michael.oritt@gmail.=
com" target=3D"_blank">michael.oritt@gmail.com</a>&gt; wrote:<br></div><blo=
ckquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left=
:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr"><div class=
=3D"gmail_default" style=3D"color:rgb(51,51,255)">Probably blown gasket at =
the 3-4 bridge.=C2=A0 My original head suffered from erosion of the metal a=
t the 1-2 bridge, allowing the gasket to blow.=C2=A0 I had it built up enou=
gh to work for a while=C2=A0but eventually replaced the head with a DWR AL =
model.=C2=A0=C2=A0</div><div class=3D"gmail_default" style=3D"color:rgb(51,=
51,255)"><br></div><div class=3D"gmail_default" style=3D"color:rgb(51,51,25=
5)">Best--Michael Oritt</div></div><br><div class=3D"gmail_quote"><div dir=
=3D"ltr" class=3D"gmail_attr">On Mon, Jan 25, 2021 at 4:55 AM Alan Seigrist=
 &lt;<a href=3D"mailto:healey.nut@gmail.com"; rel=3D"noreferrer" target=3D"_=
blank">healey.nut@gmail.com</a>&gt; wrote:<br></div><blockquote class=3D"gm=
ail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,=
204,204);padding-left:1ex"><div dir=3D"ltr">All -<div><br></div><div>My A90=
 just started running weird.=C2=A0 So I took a compression tester and I&#39=
;m getting (note the A90 is lower compression than the 100):<br><br>1 - 135=
 psi<br>2 - 135 psi</div><div>3 - 60 psi</div><div>4 - 60 psi</div><div><br=
></div><div>When I put the compression tester on number 3, I get blow back =
through #4 spark plug port.=C2=A0 Then when I put it on #4 I get blow back =
through the #3 spark plug port.<br><br>Seems to me it&#39;s just a blown he=
ad gasket.... am I correct?=C2=A0 as far as I&#39;m aware, these heads usua=
lly crack between 2 &amp; 3, correct?</div><div><br></div><div>TIA<br><br>A=
lan</div></div>
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