<div style="color:black;font: 12pt Arial, Helvetica, sans-serif;">
<div> <font size="3">Or just the age of the rockers. They start out with a nice rounded contact area where they contact the top of the valve stem but over time they get a flat spot pounded into them which can cause them to make for more clatter. </font><br>
</div>
<div> <br>
</div>
<div style="clear:both"><font size="4">Dave </font><br>
<br>
</div>
<div> <br>
</div>
<div> <br>
</div>
<div style="font-family:arial,helvetica;font-size:10pt;color:black">-----Original Message-----<br>
From: Kinderlehrer <kinderlehrer@comcast.net><br>
To: 'Bob Nogueira' <nogera@hotmail.com>; 'Triumph List' <Triumphs@autox.team.net><br>
Sent: Fri, Nov 13, 2020 1:13 pm<br>
Subject: Re: [TR] Valve train noise<br>
<br>
<div dir="ltr">Could be those rockers. They can wear in the center where the push rods make<br clear="none">contact making a measurement with a flat feeler gauge inaccurate.<br clear="none">Bob <br clear="none"><br clear="none">-----Original Message-----<br clear="none">From: Triumphs [mailto:<a shape="rect" ymailto="mailto:triumphs-bounces@autox.team.net" href="mailto:triumphs-bounces@autox.team.net">triumphs-bounces@autox.team.net</a>] On Behalf Of Bob<br clear="none">Nogueira<br clear="none">Sent: Friday, November 13, 2020 10:54 AM<br clear="none">To: Triumph List<br clear="none">Subject: [TR] Valve train noise<br clear="none"><br clear="none">Folk, a couple of years ago I did a total rebuild of my TR4 engine. It has<br clear="none">been running well but has the valves do make more noise than I experienced<br clear="none">in the past . Checking the valve clearance it is spot on. Once the engine<br clear="none">has been running for 30 to 45 minutes the noise is much louder.<br clear="none">Oil pressure is solid at 30 to 70 PSI. Engine temp stays at 170 (f). Oil is<br clear="none">20-50 Valvoline Racing Oil. <br clear="none">The rockers are from my spare engine. Head had all new valves (Stainless)<br clear="none">and New bronze guides which were reamed with a bit more tolerance. Re ground<br clear="none">cam and new lifters. <br clear="none">Any suggestions on tracking down the cause of the noise?<br clear="none"><br clear="none">Bob Nogueira <br clear="none">** <a shape="rect" ymailto="mailto:triumphs@autox.team.net" href="mailto:triumphs@autox.team.net">triumphs@autox.team.net</a> **<br clear="none"><br clear="none">Donate: <a shape="rect" href="http://www.team.net/donate.html" target="_blank">http://www.team.net/donate.html</a><br clear="none">Archive: <a shape="rect" href="http://www.team.net/pipermail/triumphs" target="_blank">http://www.team.net/pipermail/triumphs </a> <a shape="rect" href="http://www.team.net/archive" target="_blank">http://www.team.net/archive</a><br clear="none"><br clear="none">Unsubscribe/Manage:<br clear="none"><a shape="rect" href="http://autox.team.net/mailman/options/triumphs/kinderlehrer@comcast.net" target="_blank">http://autox.team.net/mailman/options/triumphs/kinderlehrer@comcast.net</a>
<div class="yqt1553269073" id="yqtfd48262"><br clear="none"><br clear="none">** <a shape="rect" ymailto="mailto:triumphs@autox.team.net" href="mailto:triumphs@autox.team.net">triumphs@autox.team.net</a> **<br clear="none"><br clear="none">Donate: <a shape="rect" href="http://www.team.net/donate.html" target="_blank">http://www.team.net/donate.html</a><br clear="none">Archive: <a shape="rect" href="http://www.team.net/pipermail/triumphs" target="_blank">http://www.team.net/pipermail/triumphs </a> <a shape="rect" href="http://www.team.net/archive" target="_blank">http://www.team.net/archive</a><br clear="none"><br clear="none">Unsubscribe/Manage: <a shape="rect" href="http://autox.team.net/mailman/options/triumphs/dave1massey@cs.com" target="_blank">http://autox.team.net/mailman/options/triumphs/dave1massey@cs.com</a><br clear="none"></div>
</div>
</div>
</div>