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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Ditch the ESA ?
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<blockquote data-quote="greg brillus" data-source="post: 125036" data-attributes="member: 597"><p>While we're talking ESA's, one recent job was a 1330 Godet Egli that the customer bought new in 2015 and was literally terrified to start it. This was on account of the massive destructive crashing sounds as the engine fired up. I found that the stock ESA well one with 22 pairs of springs was going to full deflection from cranking to engine firing up........This was evident by the witness marks and ware shown on the cam surfaces. I spoke to Neal Videan about the stronger ESA he had come up with, but he was unable to supply any more as he had exhausted his stock of them, and they were slow moving (as in slow selling).........He did send me a sample so I could copy it, but I remembered what Stu had said about replacing the inner springs with lengths of "O" ring material. I decided to give this a go, and it seemed to work very well. I'm not sure the starter system likes the ESA set up at all........ I think a belt primary would be much better, and just run a cush drive in the rear hub...........Running a twin without some form of shock absorber in the drive train would be too destructive, and eventually something will fail.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 125036, member: 597"] While we're talking ESA's, one recent job was a 1330 Godet Egli that the customer bought new in 2015 and was literally terrified to start it. This was on account of the massive destructive crashing sounds as the engine fired up. I found that the stock ESA well one with 22 pairs of springs was going to full deflection from cranking to engine firing up........This was evident by the witness marks and ware shown on the cam surfaces. I spoke to Neal Videan about the stronger ESA he had come up with, but he was unable to supply any more as he had exhausted his stock of them, and they were slow moving (as in slow selling).........He did send me a sample so I could copy it, but I remembered what Stu had said about replacing the inner springs with lengths of "O" ring material. I decided to give this a go, and it seemed to work very well. I'm not sure the starter system likes the ESA set up at all........ I think a belt primary would be much better, and just run a cush drive in the rear hub...........Running a twin without some form of shock absorber in the drive train would be too destructive, and eventually something will fail. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Ditch the ESA ?
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