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noise at 1700 ...sounds like a lifter ...help ??!!! Sun Jun 22, 2014 12:29 am
charlie99
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hi guys ...need some advice
i have what sounds like a bad lifter or shim ....
just done the gap measurements and suitable replacements of shims to get clearances all sorted to roughly the same accross both the inlets path and exhaust
so about 8 thou on all the inlets .... 0.02 mm round about and about 10 thou on all the exhausts about 0.025 mm or so
but starting the bike i still have what sounds like a clearance issue with a noticable tic at about 1700 revs ...constant .. as speed increases not so noticeable ...or drops below there ..
on acceleration the exhaust hides the noise ...so its more noticeable on a light loading
the sound whilst riding seems to eminate from the right hand side ....or more clearly hearable from there anyhow ...but if i duck my head to the left can hear it clearly there as well
still have the head covers off... remeasuring stuff and wondering how i can clarify exactly where its comming from
first worries are ...big end wear ....or a small end in there somewheres ....
thinking i might pull a plug to help locate the issue to a specific cylinder ...but worried its something deeper
any ideas ...?
i have what sounds like a bad lifter or shim ....
just done the gap measurements and suitable replacements of shims to get clearances all sorted to roughly the same accross both the inlets path and exhaust
so about 8 thou on all the inlets .... 0.02 mm round about and about 10 thou on all the exhausts about 0.025 mm or so
but starting the bike i still have what sounds like a clearance issue with a noticable tic at about 1700 revs ...constant .. as speed increases not so noticeable ...or drops below there ..
on acceleration the exhaust hides the noise ...so its more noticeable on a light loading
the sound whilst riding seems to eminate from the right hand side ....or more clearly hearable from there anyhow ...but if i duck my head to the left can hear it clearly there as well
still have the head covers off... remeasuring stuff and wondering how i can clarify exactly where its comming from
first worries are ...big end wear ....or a small end in there somewheres ....
thinking i might pull a plug to help locate the issue to a specific cylinder ...but worried its something deeper
any ideas ...?
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