What does the cap on the air nipple look like . Any one have a picture .I think i have the right fitting but the cap is brass and looks similar to a valve stem cap . It is knurled . Thanks
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Be sure to visit;
http://www.vintageamericanmotorcycles.com/main.php
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Also be sure to visit http://www.caimag.com/forum/ -
What year or years was that nipple in use and for what purpose? I've never noticed one before. Inquiring minds need to know. Thanks!DrSprocketComment
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It was a fix used in 1936-1937. The oil return line from the cups around the valve springs would plug up. An air nozzle inserted in this fitting would clear them out.Be sure to visit;
http://www.vintageamericanmotorcycles.com/main.php
Be sure to register at the site so you can see large images.
Also be sure to visit http://www.caimag.com/forum/Comment
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Thanks ChrisComment
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