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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
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<blockquote data-quote="Pete Appleton" data-source="post: 8226" data-attributes="member: 145"><p><strong>leak tester</strong></p><p></p><p>Yes, Neil the leak tester will certainly detect a hole in a piston or a burnt valve but the actual leakage value is best treated with a degree of caution. One of my frst jobs in the garage, on leaving school, was on our morris marina van. This machine would leave a trail of blue smoke that would put the red arrows to shame but on carrying out a cylinder leak test the reading was the lowest that I have ever seen! I can only assume that the oil passing up past the control ring was sealing the bore and giving a false impression. ( a rebore cured the problem)</p><p> My only reason for questioning the 'lack of compression' theories is that I hear of this complaint often, at work, from people who are actually just complaining of a misfire.</p><p></p><p>Pete</p><p></p><p>P.S Congrats on becoming Herts & Beds section organiser. Does this mean we can blame you this year when we don't get any breakfast?</p></blockquote><p></p>
[QUOTE="Pete Appleton, post: 8226, member: 145"] [b]leak tester[/b] Yes, Neil the leak tester will certainly detect a hole in a piston or a burnt valve but the actual leakage value is best treated with a degree of caution. One of my frst jobs in the garage, on leaving school, was on our morris marina van. This machine would leave a trail of blue smoke that would put the red arrows to shame but on carrying out a cylinder leak test the reading was the lowest that I have ever seen! I can only assume that the oil passing up past the control ring was sealing the bore and giving a false impression. ( a rebore cured the problem) My only reason for questioning the 'lack of compression' theories is that I hear of this complaint often, at work, from people who are actually just complaining of a misfire. Pete P.S Congrats on becoming Herts & Beds section organiser. Does this mean we can blame you this year when we don't get any breakfast? [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
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