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<p>?? can you rotate the crank knowing the piston in question can go
to, and past TDC without touching the stuck valve?</p>
<p>If you can not rotate the engine and pop that valve back up....
before pulling the head, pull the intake exhaust manifolds (half
way to pulling the head) look down in the exhuast port and see if
the valve has a ton of crap on it. Stuck down, you should see
shiny metal of the valve that rides in the guide if the valve is
open.... might be able to see if it's scored from being tight in
the guide.<br>
</p>
<p>If it stuck down and the piston even slightly tapped the valve,
chances are its bent! :-(</p>
<p>ptegler<br>
</p>
<br>
<div class="moz-cite-prefix">On 11/18/2018 4:05 PM, Jeff Scarbrough
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAO8Q7COjzQ_Y8bq5fxo=UKecjjR06r63JwYFs3SvH0pSmDaTng@mail.gmail.com">
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<div dir="ltr">Paul stopped by this afternoon, and showed me this
picture. If it was mine, given that it hadn't run in two years
and had been drained of oil for six months, I'd spray some
rust-penetrating spray all up in there, and let it soak for a
day or so. Then, I'd tap the valve with a small hammer to see
if I had any "bounce"... Then, if it was still stuck down, I'd
probably try The Other Rope Trick: Put the piston at BDC, run
some 3/8" nylon rope in the cylinder (leave an end hanging
out!), then gently rotate toward TDC and see if it would move it
without too much force. If it still doesn't move, then the head
has to come off.
<div><br>
</div>
<div>If it were mine, that's what I would do....</div>
<div><br>
</div>
<div>Jeff Scarbrough</div>
<div>Corrosion Acres, Ga.</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Sat, Nov 17, 2018 at 10:22 PM Paul Dorsey <<a
href="mailto:dorpaul1@gmail.com" moz-do-not-send="true">dorpaul1@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div class="gmail_quote">I am a novice. I have been asking
questions about my pushrod, rocker arm, etc. without
realizing the problem was probably the exhaust valve being
stuck open the whole time. (as shown in the picture
below). What causes an exhaust valve to get stuck open?
How do I fix it? This engine rebuild is relatively recent.</div>
<div class="gmail_quote"><br>
</div>
<div class="gmail_quote">Hope I don't bombard the list,
Thanks, Paul Dorsey 60 TR3<br>
<br>
<div><img src="cid:part2.4C7FBF6E.43F4CD5D@verizon.net"
style="width:736px;max-width:100%" class=""></div>
</div>
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<pre class="moz-signature" cols="72">--
Paul Tegler
<a class="moz-txt-link-abbreviated" href="mailto:ptegler@verizon.net">ptegler@verizon.net</a> <a class="moz-txt-link-abbreviated" href="http://www.teglerizer.com">www.teglerizer.com</a></pre>
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