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[TR] Valve Stem Wear

To: "triumphs@autox.team.net" <triumphs@autox.team.net>
Subject: [TR] Valve Stem Wear
From: George Haynes <ghaynestr4@aol.com>
Date: Sun, 2 May 2021 18:39:23 +0000 (UTC)
Delivered-to: mharc@autox.team.net
Delivered-to: triumphs@autox.team.net
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Had the rocker shaft off my TR4A recently and found several valve stem tips=
 pitted and peened over.=C2=A0
Metal was displaced so a finger nail could feel it. =C2=A0Would you call it=
 Galling? =C2=A0Head was done about 35K miles ago.
I've never seen this before.=C2=A0Stock Crane camshaft, valve springs and t=
ubular pushrods. Valvoline VR-1 20W-50=C2=A0oil.
The rocker arm pads have been ground at what was supposed to be the correct=
 radius. =C2=A0Don't know how to verify that.
Has anyone experienced this? =C2=A0How does it happen? =C2=A0My inclination=
 is to replace the all valves and rockers.

Thanks=C2=A0for any insight!
George HaynesCTC55423LO
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<div style="color:black;font: 10pt arial;"><span style="font-size: 10pt; 
background-color: transparent;">Had the rocker shaft off my TR4A recently and 
found several valve stem tips pitted and peened over.&nbsp;</span><br>

<div>
<div>Metal was displaced so a finger nail could feel it. &nbsp;Would you call 
it Galling? &nbsp;<span></span><span style="font-size: 10pt; background-color: 
transparent;">Head was done about 35K miles ago.</span></div>

<div><br>
</div>

<div>I've never seen this before.&nbsp;<span style="font-size: 10pt; 
background-color: transparent;">Stock Crane camshaft, valve springs and tubular 
pushrods. Valvoline VR-1 20W-50&nbsp;</span>oil.</div>

<div><br>
</div>

<div>The rocker arm pads have been ground at what was supposed to be the 
correct radius. &nbsp;Don't know how to verify that.</div>

<div><br>
</div>

<div><span style="font-size: 10pt; background-color: transparent;">Has anyone 
experienced this? &nbsp;How does it happen? &nbsp;My inclination is to replace 
the all valves and rockers.</span><br>
</div>

<div><span style="font-size: 10pt; background-color: transparent;"><br>
</span></div>

<div><span style="font-size: 10pt; background-color: 
transparent;">Thanks&nbsp;</span>for any insight!</div>

<div><br>
</div>

<div>George Haynes</div>

<div>CTC55423LO</div>
</div>
</div>

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