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techtalk:ih:engctl01a [2023/12/31 17:31] – [Auto Advance / Breaker Weight Springs] hippysmacktechtalk:ih:engctl01a [2025/07/28 22:42] (current) – [Breaker Points Seal] hippysmack
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 ==== Manual Advance Dual Point Circuit Breaker ==== ==== Manual Advance Dual Point Circuit Breaker ====
 ====== Internal Circuit Breaker (71-78) ====== ====== Internal Circuit Breaker (71-78) ======
 +===== Breaker Points Seal =====
 +This is a steel shell radial shaft seal (HD# 11124) installed in the cam cover. \\
 +It surrounds and seals #2 cam when the cover is installed. Also used on 1986-2003 model Sportster cam covers. \\
 +Dims per XLForum member, Fizzle: \\
 +OD 1.570" (39.878mm)
 +ID 1.050" (26.67mm)
 +W 0.248" (6.2992mm)
 +
 +Other brands include James (JGI-11124), Cometic (C9355), Athena (51-A210), Custom Chrome (54-043). \\
 +The rubber shell HD Genuine double lip version is part number (11124-DL). \\
 +Other brands include James (JGI-11124-DL). \\
 +**NOTE**: __SKF makes a radial shaft seal with a part number of 11124 but that IS NOT AN HD PART NUMBER__. \\
 +SKF 11124 IS TOO BIG TO FIT THE COVER and they don't show a compatible seal in their catalog for this application. \\
 +
 +HD Seal (11124): \\
 +
 +{{:techtalk:ih:engmech:1971-2003_nosecone_ignition_seal_11124_by_hippysmack.jpg?direct&400|}} ((photo by Hippysmack))
 ===== Roll Pin ===== ===== Roll Pin =====
 AKA "split pins". These are hollow pins that have a split in them and are held in holes by their own spring tension. ((needspeed of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/187639-timing-180-deg-out?t=2003348)) \\ AKA "split pins". These are hollow pins that have a split in them and are held in holes by their own spring tension. ((needspeed of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/187639-timing-180-deg-out?t=2003348)) \\