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Re: [Healeys] 100M Head

To: Kees Oudesluijs <coudesluijs@chello.nl>, Michael MacLean <rrengineer.mike@att.net>, Bob Spidell <bspidell@comcast.net>
Subject: Re: [Healeys] 100M Head
From: Curtis Arndt <cnaarndt@gmail.com>
Date: Thu, 30 Apr 2020 10:38:16 -0700
Cc: Healey List <healeys@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <1012348286.96570.1588224759544.ref@mail.yahoo.com> <1012348286.96570.1588224759544@mail.yahoo.com> <35b63ca7-c384-748f-bb8d-3a34c3673365@chello.nl>
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Mike,

No they did not number engine parts other than the engine number (easily
removable aluminum tag) on the block should match the chassis number.

Now the "M" distributors also had unique part numbers (there were two
types) and of course the H-6 carburetors were also numbered, either
AUC-6040 X or 6040 AA with of course the appropriate hand etched numbers
6047 and 6053 respectively.

Also on a somewhat related subject, a recent thread stated that
supposedly some "M" carburetors only had the number 6040 with no suffix.
However, I doubt that assertion as I have never seen any originals numbered
as such, and two other members of the Concours Committee (both 100M
experts) that I've spoken to say that they have never seen Factory "M"
carburetors with just a 6040 number.  I'm 65 and these two members are 15
years older than me, with a lot more experience.

Cheers,

Curt

> Op 30-4-2020 om 07:32 schreef Michael MacLean:
>
>
> When I bought this head from my restorer friend that has passed, he told
> me it was off a 100M.  A valve stem had bent on startup and the valve,
> valve guide and the hole for the valve guide were damaged.  When I was
> putting seals on the valves I noticed one of the valve guides was larger in
> diameter than the rest.  This was the repaired valve and guide.  Luckily it
> is an exhaust valve so a seal of the type i am using did not need to be fit
> over it.  My question is, a lot of the body parts were stamped with the
> chassis number on a 100M.  Did they also number engine parts?  This head
> had been cracked in the past and repaired correctly.  See the " X" welded
> into the top of the head in the picture.
> Mike MacLean
>
>
>

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<div dir=3D"ltr"><div dir=3D"ltr">Mike,<div><br></div><div>No they did not =
number engine parts other than the engine=C2=A0number (easily removable alu=
minum tag) on the block should match the chassis number.=C2=A0=C2=A0</div><=
div><br></div><div>Now the &quot;M&quot; distributors also had unique part =
numbers (there were two types) and of course the H-6 carburetors were also =
numbered, either AUC-6040 X or 6040 AA with of course the appropriate=C2=A0=
hand etched numbers 6047 and 6053 respectively.</div><div><br></div><div>Al=
so on a somewhat related=C2=A0subject, a recent thread stated that supposed=
ly=C2=A0some &quot;M&quot; carburetors only had the number 6040 with no suf=
fix. However, I doubt that assertion as I have never seen any originals num=
bered as such, and two other members of the Concours=C2=A0Committee=C2=A0(b=
oth 100M experts) that I&#39;ve spoken to say that they have never=C2=A0see=
n Factory &quot;M&quot; carburetors with just a 6040 number.=C2=A0 I&#39;m =
65 and these two members are 15 years older than me, with a lot more experi=
ence.</div><div><br></div><div>Cheers,</div><div><br></div><div>Curt</div><=
/div><div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"=
margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-lef=
t:1ex"><div><p>Op 30-4-2020 om 07:32 schreef Michael
      MacLean:<br></p>
    <blockquote type=3D"cite">
     =20
      <div id=3D"gmail-m_-8800915579693422865yiv7043102273">
        <div><img id=3D"gmail-m_-8800915579693422865ymail_attachmentId29270=
" style=3D"width: 100%; max-width: 800px;"><br></div>
        When I bought this head from my restorer friend that has passed,
        he told me it was off a 100M.=C2=A0 A valve stem had bent on startu=
p
        and the valve, valve guide and the hole for the valve guide were
        damaged.=C2=A0 When I was putting seals on the valves I noticed one
        of the valve guides was larger in diameter than the rest.=C2=A0 Thi=
s
        was the repaired valve and guide.=C2=A0 Luckily it is an exhaust
        valve so a seal of the type i am using did not need to be fit
        over it.=C2=A0 My question is, a lot of the body parts were stamped
        with the chassis number on a 100M.=C2=A0 Did they also number engin=
e
        parts?=C2=A0 This head had been cracked in the past and repaired
        correctly.=C2=A0 See the &quot; X&quot; welded into the top of the =
head in the
        picture.
        <div id=3D"gmail-m_-8800915579693422865yiv7043102273yMail_cursorEle=
mentTracker_1588224655652">Mike
          MacLean</div></div></blockquote></div>
<br>
</blockquote></div></div>

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