<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Thanks everyone;<div>As no one seems to have had repeated trouble with these, I’ve opted to keep and use them on the next rebuild…,</div><div>Your inputs are much appreciated!</div><div>Regards,</div><div>Phil<br id="lineBreakAtBeginningOfSignature"><div dir="ltr">Sent from my iPhone</div><div dir="ltr"><br><blockquote type="cite">On Sep 23, 2024, at 8:36 AM, Erik Jacobsen <kekjacobsen@yahoo.com> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><div class="ydpaaa09c28yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div></div>
<div dir="ltr" data-setdir="false">Phil,</div><div dir="ltr" data-setdir="false">My two cents (no cash value <img title="Emoji" alt="Emoji" class="yahoo-emoji-wrapper" height="16" src="https://s.yimg.com/nq/yemoji_assets/latest/yemoji_assets/1f609.png" width="16" style="padding: 0px 2px; vertical-align: middle;" data-inlineimagemanipulating="true" data-unique-identifier="">). I have used vernier sprockets on my TR3, my wife's TR6 and my Bugeye race cars, and haven't had any issues. I don't torque them to a specific number since mine are all aluminum, but I do Loctite blue the screws. Have never had any slipping or wear issues. And the ability to get the cam timing just right is awfully nice, especially on the 3 as it's so critical. </div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Cheers,</div><div dir="ltr" data-setdir="false">Jake</div><div><br></div>
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On Monday, September 23, 2024 at 07:21:34 AM CDT, vfracing--- via Fot <fot@autox.team.net> wrote:
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<div><div id="ydpdf1d6466yiv9746831058"><div><div style="font-family:arial;font-size:16px;" class="ydpdf1d6466yiv9746831058yahoo-style-wrap"><div dir="ltr">Hi all;</div><div dir="ltr"><br></div><div dir="ltr">After completely and embarassingly blowing cam timing on two consecutive engines i bought from Moss a so-called "vernier" adjustable cam timing sprocket made by Powertune. It consists of a hub and sprocket held in relative position to each other with 6 Allen head cap screws near the periphery of the sprocket. The cap screws have a fancy machined and anodized aluminum washer under them to spread the load. (See picture).</div><div dir="ltr"><br></div><div dir="ltr">My question/concerns are:</div><div dir="ltr"><br></div><blockquote style="margin:0 0 0 40px;border:none;padding:0px;"><div dir="ltr">Is this robust enough to hold position? Is the friction between hub and sprocket sufficient? </div><div dir="ltr"><br></div><div dir="ltr">Do the aluminum "washers" hold up or do they creep over time, reducing the clamping load and allowing it to slip?</div><div dir="ltr"><br></div><div dir="ltr">Does anyone have a suggestion for the torque spec on the 6 Allen headed cap screws (no specs given with the sprocket) or the hub to cam (book says 24 - 26 ft lbs).</div><div dir="ltr"><br></div><div dir="ltr">Should I assemble this Loctite between the hub and sprocket to keep it from slipping?</div><div dir="ltr"><br></div><div dir="ltr">Or should I send this back and get a more robust unit? If so, where can I get a better one?</div></blockquote><div dir="ltr"><br></div><div dir="ltr">Thanks!</div><div dir="ltr"><br></div><div dir="ltr"><br></div><div dir="ltr">Phil Gott</div><div dir="ltr"><br></div><div dir="ltr"><br></div></div></div></div>_______________________________________________<br><a href="mailto:fot@autox.team.net" rel="nofollow" target="_blank">fot@autox.team.net</a><br><br><a href="http://www.fot-racing.com" rel="nofollow" target="_blank">http://www.fot-racing.com</a><br><br>Donate: <a href="http://www.team.net/donate.html" rel="nofollow" target="_blank">http://www.team.net/donate.html</a><br>Archive: <a href="http://autox.team.net/archive" rel="nofollow" target="_blank">http://autox.team.net/archive</a> <a href="http://www.team.net/pipermail/fot" rel="nofollow" target="_blank">http://www.team.net/pipermail/fot</a><br>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/fot/kekjacobsen@yahoo.com" rel="nofollow" target="_blank">http://autox.team.net/mailman/options/fot/kekjacobsen@yahoo.com</a><br><br><br></div>
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