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The bonnet should be crowned in both directions. A trick I was taught by a =
metal worker to determine if the surface is distorted is to use a long flex=
ible piece of gas welding rod as a gauge. Hold down the ends on the known c=
orrect surfaces and look for gaps between the rod and the surface between. =
The rod should lie on the surface for its whole length as it defines a smoo=
th curve.
Bill Lawrence
BN1 #554
________________________________
From: Healeys <healeys-bounces@autox.team.net> on behalf of S. Carr <britfa=
n1@epix.net>
Sent: Tuesday, December 4, 2018 3:25 PM
To: Healey List
Subject: [Healeys] 100 hood (bonnet) contour
My 100 is now in a new shop (the man who had been working on it died). The=
car has been apart since 2006, and some of the sheet metal might have been=
damaged over the years.
A straight edge laid crosswise on the hood, about midway, touches flat most=
of the way across, then the hood curves down toward the sides. Should the=
hood be flat in the middle like this, or should it be slightly crowned in =
the center, and gradually fall away from there toward the sides? (There isn=
=92t another 100 readily available for comparison).
TIA,
Sarah Carr
BN1 in PA
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<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;=
color: rgb(0, 0, 0);">
The bonnet should be crowned in both directions. A trick I was taught by a =
metal worker to determine if the surface is distorted is to use a long flex=
ible piece of gas welding rod as a gauge. Hold down the ends on the known c=
orrect surfaces and look for gaps
between the rod and the surface between. The rod should lie on the surface=
for its whole length as it defines a smooth curve.</div>
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;=
color: rgb(0, 0, 0);">
<br>
</div>
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;=
color: rgb(0, 0, 0);">
Bill Lawrence</div>
<div style=3D"font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;=
color: rgb(0, 0, 0);">
BN1 #554</div>
<hr style=3D"display:inline-block;width:98%" tabindex=3D"-1">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" st=
yle=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Healeys <healeys-b=
ounces@autox.team.net> on behalf of S. Carr <britfan1@epix.net><br=
>
<b>Sent:</b> Tuesday, December 4, 2018 3:25 PM<br>
<b>To:</b> Healey List<br>
<b>Subject:</b> [Healeys] 100 hood (bonnet) contour</font>
<div> </div>
</div>
<div dir=3D"ltr">
<div dir=3D"ltr">
<div style=3D"font-size:12pt; font-family:'Calibri'; color:#000000">
<div>My 100 is now in a new shop (the man who had been working on it died).=
The car has been apart since 2006, and some of the sheet metal might=
have been damaged over the years.</div>
<div> </div>
<div>A straight edge laid crosswise on the hood, about midway, touches flat=
most of the way across, then the hood curves down toward the sides. =
Should the hood be flat in the middle like this, or should it be slightly c=
rowned in the center, and gradually fall
away from there toward the sides? (There isn=92t another 100 readily avail=
able for comparison).</div>
<div> </div>
<div>TIA,</div>
<div>Sarah Carr</div>
<div>BN1 in PA</div>
</div>
</div>
</div>
</body>
</html>
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