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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Stripped oil pump
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<blockquote data-quote="ogrilp400" data-source="post: 13581" data-attributes="member: 88"><p>You point out that the oil flow was working so that points out that the pump was functioning correctly. You then say that you removed the plunger and it was stripped. Hmmm, perplexing. By saying "you removed the plunger" It sounds like the plunger slid out easily, no sign of anything stressing it enough to strip it. David points to the scroll screw but surely if that had bound up then <u>it</u> would be next to impossible to remove. But again you have not mentioned that the scroll screw has been distressed. If something had got into the works to stop the plunger oscillating, then I would expect the scroll screw to shear off. If something got into the works to stop the plunger rotating (which is a likely cause of the teeth stripping) then the plunger would have been locked in the sleeve and impossible to remove.</p></blockquote><p></p>
[QUOTE="ogrilp400, post: 13581, member: 88"] You point out that the oil flow was working so that points out that the pump was functioning correctly. You then say that you removed the plunger and it was stripped. Hmmm, perplexing. By saying "you removed the plunger" It sounds like the plunger slid out easily, no sign of anything stressing it enough to strip it. David points to the scroll screw but surely if that had bound up then [U]it[/U] would be next to impossible to remove. But again you have not mentioned that the scroll screw has been distressed. If something had got into the works to stop the plunger oscillating, then I would expect the scroll screw to shear off. If something got into the works to stop the plunger rotating (which is a likely cause of the teeth stripping) then the plunger would have been locked in the sleeve and impossible to remove. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Stripped oil pump
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