This is a multi-part message in MIME format.
--===============5208475116039092703==
boundary="------------090805030506070707030103"
This is a multi-part message in MIME format.
--------------090805030506070707030103
Content-Transfer-Encoding: 7bit
Oops, I got that wrong. When you hit the cam it relieves the stresses
on the surface and causes it to curl away from where it is struck. Of
course, you will have to keep checking it and move around to hit it at
different spots. The chisel should be curved and blunt to spread out
the blow. You should hold the cam and push gently in the direction it
should move. This is one of those operations that would be easier after
watching an old time machinist do it.
On 1/7/2015 3:56 PM, Larry Young via Fot wrote:
> It is not difficult to straighten cams yourself. You can do it with a
> blunt cold chisel and hammer, but I prefer to use an air hammer with a
> blunt rounded chisel. Use V blocks and a dial indicator to check it
> and decide where it is bent. You hit the cam between the lobes, which
> relieves the stresses and causes it to curve up. It seems counter
> intuitive, but that is the way they bend. It has been a while since
> I've done it, but I believe that is how it's done with these cast iron
> blanks. If it still doesn't fit, then have it ground to fit as Greg
> suggested.
> - Larry Young
>
--------------090805030506070707030103
Content-Transfer-Encoding: 7bit
<html>
<head>
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
Oops, I got that wrong. When you hit the cam it relieves the
stresses on the surface and causes it to curl away from where it is
struck. Of course, you will have to keep checking it and move around
to hit it at different spots. The chisel should be curved and blunt
to spread out the blow. You should hold the cam and push gently in
the direction it should move. This is one of those operations that
would be easier after watching an old time machinist do it.<br>
<br>
<div class="moz-cite-prefix">On 1/7/2015 3:56 PM, Larry Young via
Fot wrote:<br>
</div>
<blockquote cite="mid:54ADAB83.9040005@pobox.com" type="cite">
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
It is not difficult to straighten cams yourself. You can do it
with a blunt cold chisel and hammer, but I prefer to use an air
hammer with a blunt rounded chisel. Use V blocks and a dial
indicator to check it and decide where it is bent. You hit the cam
between the lobes, which relieves the stresses and causes it to
curve up. It seems counter intuitive, but that is the way they
bend. It has been a while since I've done it, but I believe that
is how it's done with these cast iron blanks. If it still doesn't
fit, then have it ground to fit as Greg suggested.<br>
- Larry Young<br>
<br>
</blockquote>
<br>
</body>
</html>
--------------090805030506070707030103--
--===============5208475116039092703==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
_______________________________________________
fot@autox.team.net
http://www.fot-racing.com
Archive: http://www.team.net/archive
--===============5208475116039092703==--
|