Subject: Re: [Mgs] Alternator Mounting

From: "PaulHunt73" <[email-masked]>
Date: Sat, 12 Jun 2021 09:10:13 +0100 hGcZUTWRPaYAq4sMoqaqz/lA4VkdAlU0jUj20ChZ3C2pMvZYqqVrf+MCr7+ATSeUfKp3P6t96Za0sOISH+h15jA8Nso+m/mS4ak=

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There are more spacers between the front eye and the mounting bracket =
than I would expect to see, different alts seem to need different =
thicknesses to get the alt pulley square to the water pump pulley which =
is the criteria.  The sliding tube in the front eye is at it's fullest =
extent so there may be some bending stresses on the eyes, but slackening =
the bolts through the rear bracket to the block may take care of that.  =
Fan belt looks wide but 10900 is the correct size for all but the latest =
CBs and the RBs.

If the belt is slack it would normally spin on the alt pulley with a =
shriek rather than the crank or pump pulleys so cooling shouldn't be =
affected, but if it's loose then you need to check the adjuster link =
under the alt and see if it is at its fullest extent or not.

PaulH.
  ----- Original Message -----=20

  Look at the picture.  This alternator is in my 1969 MGB GT.  It is =
charging OK, but the engine is running hot.  I tried today to tighten =
the fan belt which was way too easy to turn by hand without moving the =
belt.  I could not tighten it enough to stop the fan from slipping.  It =
looks jury rigged to me, but I have no other examples to go by.  By the =
way, the engine is from a 67 B according to the serial number.
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<DIV>There are more spacers between the front eye and the mounting =
bracket than=20
I would expect to see, different alts seem to need different thicknesses =
to get=20
the alt pulley square to the water pump pulley which is the =
criteria.&nbsp; The=20
sliding tube in the front eye is at it's fullest extent so there may be =
some=20
bending stresses on the eyes, but slackening the bolts through the rear =
bracket=20
to the block may take care of that.&nbsp; Fan belt looks wide but 10900 =
is the=20
correct size for all but the latest CBs and the RBs.</DIV>
<DIV>&nbsp;</DIV>
<DIV>If the belt is slack it would normally spin on the alt pulley with =
a shriek=20
rather than the crank or pump pulleys so cooling shouldn't be affected, =
but if=20
it's loose then you need to check the adjuster link under the alt and =
see if it=20
is at its fullest extent or not.</DIV>
<DIV>&nbsp;</DIV>
<DIV>PaulH.</DIV>
<BLOCKQUOTE=20
style=3D"BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; =
PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
  <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
  <DIV><BR></DIV>
  <DIV dir=3Dauto>Look at the picture.&nbsp; This alternator is in my =
1969 MGB=20
  GT.&nbsp; It is charging OK, but the engine is running hot.&nbsp; I =
tried=20
  today to tighten the fan belt which was way too easy to turn by hand =
without=20
  moving the belt.&nbsp; I could not tighten it enough to stop the fan =
from=20
  slipping.&nbsp; It looks jury rigged to me, but I have no other =
examples to go=20
  by.&nbsp; By the way, the engine is from a 67 B according to the =
serial=20
  number.</DIV></BLOCKQUOTE></BODY></HTML>

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From: i erbs <[email-masked]>
Date: Sat, 12 Jun 2021 06:28:03 -0700

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Belt could be too long.

Ira Erbs
1959 AH 100-6
1967 MGB
Milwaukie, OR

On Fri, Jun 11, 2021, 6:25 PM Michael MacLean <[email-masked]>
wrote:

> Look at the picture.  This alternator is in my 1969 MGB GT.  It is
> charging OK, but the engine is running hot.  I tried today to tighten the
> fan belt which was way too easy to turn by hand without moving the belt.  I
> could not tighten it enough to stop the fan from slipping.  It looks jury
> rigged to me, but I have no other examples to go by.  By the way, the
> engine is from a 67 B according to the serial number.
> Mike MacLean
> 1969 MGB GT
> 1960 Bugeye
> 1956 Austin Healey BN2
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.75
>
> Unsubscribe: http://autox.team.net/mailman/options/mgs/[email-masked]
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<div dir=3D"auto">Belt could be too long.=C2=A0<br><br><div data-smartmail=
=3D"gmail_signature">Ira Erbs<br>1959 AH 100-6<br>1967 MGB<br>Milwaukie, OR=
</div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_=
attr">On Fri, Jun 11, 2021, 6:25 PM Michael MacLean &lt;<a href=3D"mailto:s=
[email-masked]">[email-masked]</a>&gt; wrote:<br></div=
><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1=
px #ccc solid;padding-left:1ex"><div dir=3D"auto">Look at the picture.=C2=
=A0 This alternator is in my 1969 MGB GT.=C2=A0 It is charging OK, but the =
engine is running hot.=C2=A0 I tried today to tighten the fan belt which wa=
s way too easy to turn by hand without moving the belt.=C2=A0 I could not t=
ighten it enough to stop the fan from slipping.=C2=A0 It looks jury rigged =
to me, but I have no other examples to go by.=C2=A0 By the way, the engine =
is from a 67 B according to the serial number.<div dir=3D"auto">Mike MacLea=
n</div><div dir=3D"auto">1969 MGB GT</div><div dir=3D"auto">1960 Bugeye</di=
v><div dir=3D"auto">1956 Austin Healey BN2</div></div>
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