New member - Scott 16 - EH Scott Radio Enthusiasts2024-03-28T08:29:31Zhttps://ehscott.ning.com/forum/topics/new-member-scott-16?commentId=3925821%3AComment%3A123836&xg_source=activity&feed=yes&xn_auth=noI received my selection of O-…tag:ehscott.ning.com,2022-06-21:3925821:Comment:1253962022-06-21T20:52:35.133ZDave McClellanhttps://ehscott.ning.com/profile/DaveMcClellan
<p>I received my selection of O-rings from Grainger today. I first tried ONE 1/16 x 2 5/8". It stayed on the pulleys but slipped. So I added a two more. They are actually about 0.068" in diameter, so three is close to 1/4". These stay on the pulleys and do not slip. Actually I think 2 may work. While this solution works, the small stretch of the O-rings makes critical tuning of short wave tricky, but it can be done. When tuning knob motion stops and tension is released, the stretch of the belt…</p>
<p>I received my selection of O-rings from Grainger today. I first tried ONE 1/16 x 2 5/8". It stayed on the pulleys but slipped. So I added a two more. They are actually about 0.068" in diameter, so three is close to 1/4". These stay on the pulleys and do not slip. Actually I think 2 may work. While this solution works, the small stretch of the O-rings makes critical tuning of short wave tricky, but it can be done. When tuning knob motion stops and tension is released, the stretch of the belt will move the tuning capacitor pulley a small amount further (over-run). If one knows this will happen one can quickly learn to compensate.</p>
<p>The Grainger item number is 41UJ87, O-Ring, Buna N, Dash 038, 2 5/8 (pack of 10) $1.84. I have left-overs if anyone wants them.</p> Will it work without a belt t…tag:ehscott.ning.com,2022-06-21:3925821:Comment:1251242022-06-21T10:53:38.072ZDave McClellanhttps://ehscott.ning.com/profile/DaveMcClellan
<p>Will it work without a belt tensioner? Mine has been removed. If so, yes. <br></br> <br></br> <cite>David C. Poland said:</cite></p>
<blockquote cite="https://ehscott.ning.com/forum/topics/new-member-scott-16?commentId=3925821%3AComment%3A125369&xg_source=msg_com_forum#3925821Comment125369"><div><div class="xg_user_generated"><p>I have several Walsco brand # 1119 belts in my GC box of belts.</p>
<p>Appear to be equal to the GC #119 above. Same specs.</p>
<p>Seems pretty flexible still. Looks…</p>
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<p>Will it work without a belt tensioner? Mine has been removed. If so, yes. <br/> <br/> <cite>David C. Poland said:</cite></p>
<blockquote cite="https://ehscott.ning.com/forum/topics/new-member-scott-16?commentId=3925821%3AComment%3A125369&xg_source=msg_com_forum#3925821Comment125369"><div><div class="xg_user_generated"><p>I have several Walsco brand # 1119 belts in my GC box of belts.</p>
<p>Appear to be equal to the GC #119 above. Same specs.</p>
<p>Seems pretty flexible still. Looks just like the GC brand in construction. </p>
<p>Want to try it?</p>
<p></p>
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</blockquote> I have several Walsco brand #…tag:ehscott.ning.com,2022-06-21:3925821:Comment:1253692022-06-21T03:50:26.379ZDavid C. Polandhttps://ehscott.ning.com/profile/DavidCPoland
<p>I have several Walsco brand # 1119 belts in my GC box of belts.</p>
<p>Appear to be equal to the GC #119 above. Same specs.</p>
<p>Seems pretty flexible still. Looks just like the GC brand in construction. </p>
<p>Want to try it?</p>
<p></p>
<p>I have several Walsco brand # 1119 belts in my GC box of belts.</p>
<p>Appear to be equal to the GC #119 above. Same specs.</p>
<p>Seems pretty flexible still. Looks just like the GC brand in construction. </p>
<p>Want to try it?</p>
<p></p> Interesting dilemma, but I st…tag:ehscott.ning.com,2022-06-20:3925821:Comment:1250082022-06-20T22:53:06.642ZScott Seickelhttps://ehscott.ning.com/profile/ScottSeickel
<p>Interesting dilemma, but I still see it as an alignment problem or possibly the circumference of one edge of the belt is slightly different from the other one. </p>
<p>Interesting dilemma, but I still see it as an alignment problem or possibly the circumference of one edge of the belt is slightly different from the other one. </p> I did add shims to the bracke…tag:ehscott.ning.com,2022-06-20:3925821:Comment:1246162022-06-20T18:07:15.431ZDave McClellanhttps://ehscott.ning.com/profile/DaveMcClellan
<p>I did add shims to the bracket holding the tuning shaft pulley using my stock of thin brass of various thicknesses. I could tilt the pully either up or down a small amount. It made no difference, except which side of the pulley the belt climbed. The tuning capacitor shaft and pulley cannot be shimmed to change the tilt in my radio. Also, when I was able to shim the tuning shaft pulley so that the belt stayed in the groove, it still would climb the sides of the tuning capacitor pulley (larger…</p>
<p>I did add shims to the bracket holding the tuning shaft pulley using my stock of thin brass of various thicknesses. I could tilt the pully either up or down a small amount. It made no difference, except which side of the pulley the belt climbed. The tuning capacitor shaft and pulley cannot be shimmed to change the tilt in my radio. Also, when I was able to shim the tuning shaft pulley so that the belt stayed in the groove, it still would climb the sides of the tuning capacitor pulley (larger pulley). FYI the belt cut length is 9 23/32".</p>
<p>I will try using the O-rings that I have ordered ETA Wednesday. If that does not work, I may have to find a replacement belt tensioner and use one of the GC belts.</p>
<p>Thanks to everyone for the suggestions.</p> +1 on Scott's suggestion.tag:ehscott.ning.com,2022-06-20:3925821:Comment:1246112022-06-20T17:43:36.587ZRobert Feenstrahttps://ehscott.ning.com/profile/RobertFeenstra
<p>+1 on Scott's suggestion.</p>
<p>+1 on Scott's suggestion.</p> Try Kent for a belt tensioner…tag:ehscott.ning.com,2022-06-20:3925821:Comment:1237612022-06-20T03:21:45.218ZDavid C. Polandhttps://ehscott.ning.com/profile/DavidCPoland
<p>Try Kent for a belt tensioner from a parts chassis?</p>
<p>The model Sixteen is the only E H Scott using a dial belt.</p>
<p>The GC belts are a laminated combo of cloth and rubber layers.</p>
<p>Try Kent for a belt tensioner from a parts chassis?</p>
<p>The model Sixteen is the only E H Scott using a dial belt.</p>
<p>The GC belts are a laminated combo of cloth and rubber layers.</p> In your picture the belt is r…tag:ehscott.ning.com,2022-06-19:3925821:Comment:1238412022-06-19T22:44:59.889ZScott Seickelhttps://ehscott.ning.com/profile/ScottSeickel
<p>In your picture the belt is riding up on the flange away from the tuning knob. I would loosen the screws holding that assembly and try some thin metal shim stock under just the edge of that assembly to get the belt to ride towards center. If you have a set of feeler gauges, those would be perfect. </p>
<p>In your picture the belt is riding up on the flange away from the tuning knob. I would loosen the screws holding that assembly and try some thin metal shim stock under just the edge of that assembly to get the belt to ride towards center. If you have a set of feeler gauges, those would be perfect. </p> There is a slight amount of p…tag:ehscott.ning.com,2022-06-19:3925821:Comment:1237602022-06-19T21:53:58.233ZDave McClellanhttps://ehscott.ning.com/profile/DaveMcClellan
<p>There is a slight amount of play (wiggle) in both pulleys. It is difficult to determine if the two shafts are parallel by eye. The two plates are definitely firmly attached by the 4 studs so no relative movement of the plates should occur. </p>
<p>There is a slight amount of play (wiggle) in both pulleys. It is difficult to determine if the two shafts are parallel by eye. The two plates are definitely firmly attached by the 4 studs so no relative movement of the plates should occur. </p> My 16 did not have a belt ten…tag:ehscott.ning.com,2022-06-19:3925821:Comment:1238402022-06-19T18:24:26.495ZRobert Feenstrahttps://ehscott.ning.com/profile/RobertFeenstra
<p>My 16 did not have a belt tensioner either but the belt stays perfectly centered on the 2 pulleys. The slight domed shape of the pulley between the flanges helps to keep it that way. Are the two shafts perfectly parallel or is there, perhaps, a lot of wear in the drive mechanism causing the pulley to be at a slight angle?</p>
<p>My 16 did not have a belt tensioner either but the belt stays perfectly centered on the 2 pulleys. The slight domed shape of the pulley between the flanges helps to keep it that way. Are the two shafts perfectly parallel or is there, perhaps, a lot of wear in the drive mechanism causing the pulley to be at a slight angle?</p>