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--></style></head><body lang=3DEN-US link=3Dblue vlink=3D"#954F72" style=3D=
'word-wrap:break-word'><div class=3DWordSection1><p class=3DMsoNormal>Try p=
ushing in the clutch when resonating. This will provide a some dampening an=
d change the rotating parts.</p><p class=3DMsoNormal><o:p> </o:p></p><=
p class=3DMsoNormal>Harold<o:p></o:p></p><p class=3DMsoNormal><o:p> </=
o:p></p><div style=3D'mso-element:para-border-div;border:none;border-top:so=
lid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=3DMsoNormal style=3D'=
border:none;padding:0in'><b>From: </b><a href=3D"mailto:eyera3000@gmail.com=
">i erbs</a><br><b>Sent: </b>Sunday, May 2, 2021 3:56 PM<br><b>To: </b><a h=
ref=3D"mailto:michaelsalter@gmail.com";>Michael Salter</a><br><b>Cc: </b><a =
href=3D"mailto:healeys@autox.team.net";>Ahealey help</a><br><b>Subject: </b>=
Re: [Healeys] Resonance at 2900 rpm</p></div><p class=3DMsoNormal><o:p>&nbs=
p;</o:p></p><div><p class=3DMsoNormal><br>The engine was balanced when I re=
built it. Replaced the flywheel to accommodate a late model clutch cover, b=
ut did not balance the new flywheel.</p><div><p class=3DMsoNormal>How do yo=
u check a harmonic balance?</p><div><p class=3DMsoNormal>Ira Erbs<br>1959 A=
H 100-6<br>1967 MGB<br>Milwaukie, OR</p></div></div></div><p class=3DMsoNor=
mal><o:p> </o:p></p><div><div><p class=3DMsoNormal>On Sun, May 2, 2021=
, 3:51 PM Michael Salter <<a href=3D"mailto:michaelsalter@gmail.com";>mic=
haelsalter@gmail.com</a>> wrote:</p></div><blockquote style=3D'border:no=
ne;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.=
8pt;margin-right:0in'><div><p class=3DMsoNormal><span style=3D'font-size:9.=
5pt;font-family:"Arial",sans-serif'>"Yes on engine".</span></p><d=
iv><p class=3DMsoNormal><span style=3D'font-size:9.5pt;font-family:"Arial",=
sans-serif'>Well to be honest that opens a whole can of worms. </span>=
</p></div><div><p class=3DMsoNormal><span style=3D'font-size:9.5pt;font-fam=
ily:"Arial",sans-serif'>Engine balance would certainly be the first suspici=
on and that involves a total rebuild.</span></p></div><div><p class=3DMsoNo=
rmal><span style=3D'font-size:9.5pt;font-family:"Arial",sans-serif'>Sometim=
es an exhaust system can develop a "resonance " which if caused b=
y a muffler will usually result in it cracking eventually. </span></p>=
</div><div><p class=3DMsoNormal><span style=3D'font-size:9.5pt;font-family:=
"Arial",sans-serif'>I've encountered various other sources ... <=
/span></p></div><div><p class=3DMsoNormal><span style=3D'font-size:9.5pt;fo=
nt-family:"Arial",sans-serif'>Badly balanced and mounted alternator.</span>=
</p></div><div><p class=3DMsoNormal><span style=3D'font-size:9.5pt;font-fam=
ily:"Arial",sans-serif'>Disintegrating front balancer</span></p></div><div>=
<p class=3DMsoNormal><span style=3D'font-size:9.5pt;font-family:"Arial",san=
s-serif'> & Loose flywheel</span></p></div><div><p class=3DMsoNorm=
al><span style=3D'font-size:9.5pt;font-family:"Arial",sans-serif'>Come to m=
ind.</span></p></div><div><p class=3DMsoNormal><o:p> </o:p></p></div><=
div><p class=3DMsoNormal><span style=3D'font-size:9.5pt;font-family:"Arial"=
,sans-serif'>Time for some diagnosis.</span></p></div><div><p class=3DMsoNo=
rmal><o:p> </o:p></p></div><div><p class=3DMsoNormal><span style=3D'fo=
nt-size:9.5pt;font-family:"Arial",sans-serif'>M</span></p></div><div><p cla=
ss=3DMsoNormal><o:p> </o:p></p></div></div><p class=3DMsoNormal><o:p>&=
nbsp;</o:p></p><div><div><p class=3DMsoNormal>On Sun., May 2, 2021, 6:38 p.=
m. i erbs, <<a href=3D"mailto:eyera3000@gmail.com";>eyera3000@gmail.com</=
a>> wrote:</p></div><blockquote style=3D'border:none;border-left:solid #=
CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'>=
<div><p class=3DMsoNormal>Yes on engine.</p><div><p class=3DMsoNormal style=
=3D'margin-bottom:12.0pt'>Yes to switching flywheel to BJ8 and special disk=
for toyota </p><div><p class=3DMsoNormal>Ira Erbs<br>1959 AH 100-6<br=
>1967 MGB<br>Milwaukie, OR</p></div></div></div><p class=3DMsoNormal><o:p>&=
nbsp;</o:p></p><div><div><p class=3DMsoNormal>On Sun, May 2, 2021, 11:18 AM=
Bob Spidell <<a href=3D"mailto:bspidell@comcast.net";>bspidell@comcast.n=
et</a>> wrote:</p></div><blockquote style=3D'border:none;border-left:sol=
id #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0=
in'><p class=3DMsoNormal style=3D'margin-bottom:12.0pt'>Did you have your e=
ngine balanced at rebuild? If you did, have you <br>changed out the clutch =
or flywheel since?<br><br>On 5/2/2021 11:01 AM, i erbs via Healeys wrote:<b=
r>> Howdy all,<br>> Been driving my car a lot lately and I've been re=
minded that I get <br>> some load resonance between 2800 and 2900 rpm, i=
n any gear. Have <br>> Smitty 5 speed.<br>> Any ideas?<br>><br>>=
; Ira Erbs<br>> 1959 AH 100-6<br>> 1967 MGB<br>> Milwaukie, OR<br>=
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