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=E2=80=A6exactly what I had with the Ward Spl motor after a tyre kicking =
non-buyer floored the throttle in overdrive top at about 40kph going =
uphill! Detonation big time! I put some crack testing penetrating dye in =
no3. Spun the motor over then checked no.4 with some paper towel =
=E2=80=93 bingo red dye in no.4 =3D blown gasket.
=20
=20
Cheers
=20
Peter Linn
Brisbane
=20
From: Healeys <healeys-bounces@autox.team.net> On Behalf Of Alan =
Seigrist
Sent: Monday, 25 January 2021 7:56 PM
To: Healey list <Healeys@autox.team.net>
Subject: [Healeys] 100-4 engine head gasket?
=20
All -
=20
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
=20
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 =
the #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?
=20
TIA
Alan
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class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'>=E2=80=A6exactly what I had with =
the Ward Spl motor after a tyre kicking non-buyer floored the throttle =
in overdrive top at about 40kph going uphill! Detonation big time! I put =
some crack testing penetrating dye in no3. Spun the motor over then =
checked no.4 with some paper towel =E2=80=93 bingo red dye in no.4 =3D =
blown gasket.<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'>Cheers<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'mso-fareast-language:EN-US'>Peter =
Linn<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'>Brisbane<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'mso-fareast-language:EN-US'><o:p> </o:p></span></p><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm =
0cm 0cm'><p class=3DMsoNormal><b><span =
lang=3DEN-US>From:</span></b><span lang=3DEN-US> Healeys =
<healeys-bounces@autox.team.net> <b>On Behalf Of </b>Alan =
Seigrist<br><b>Sent:</b> Monday, 25 January 2021 7:56 PM<br><b>To:</b> =
Healey list <Healeys@autox.team.net><br><b>Subject:</b> [Healeys] =
100-4 engine head gasket?<o:p></o:p></span></p></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><p class=3DMsoNormal>All =
-<o:p></o:p></p><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal>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):<br><br>1 - 135 psi<br>2 - 135 =
psi<o:p></o:p></p></div><div><p class=3DMsoNormal>3 - 60 =
psi<o:p></o:p></p></div><div><p class=3DMsoNormal>4 - 60 =
psi<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal>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 the #3 spark plug port.<br><br>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?<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal>TIA<br><br>Alan<o:p></o:p></p></div></div></div></body>=
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