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FJR Motorcycle Forums
Technical & Mechanical Problems
50 miles and broke already
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<blockquote data-quote="FJR919" data-source="post: 296383" data-attributes="member: 508"><p>Hate to disagree with you, and if a board expert like Jestal or Radman tells me I'm wrong I'd accept that, but to my knowledge valves don't need "to seat" when cold. With all the cylinder heads I've worked with, I always performed a bench test of solvent in the combustion chamber to test for leakage into the ports with an occasional valve lapping required to get it to seal properly. This is of course when all these parts are cold, and valves should seal hot or cold. I believe you are thinking of the tick sometimes associated with hydraulic valve lifter engines, where a weak hydraulic lifter may bleed down overnight causing an increase in clearance on that valve resulting in a tick until that lifter "pumps up" and can close the clearance. As we all know, our FJR's don't have hydraulic lifters.</p><p></p><p>I'm not saying to worry at this point, but it may warrant further investigation if it keeps happening or gets louder. Just my 2 cents.</p></blockquote><p></p>
[QUOTE="FJR919, post: 296383, member: 508"] Hate to disagree with you, and if a board expert like Jestal or Radman tells me I'm wrong I'd accept that, but to my knowledge valves don't need "to seat" when cold. With all the cylinder heads I've worked with, I always performed a bench test of solvent in the combustion chamber to test for leakage into the ports with an occasional valve lapping required to get it to seal properly. This is of course when all these parts are cold, and valves should seal hot or cold. I believe you are thinking of the tick sometimes associated with hydraulic valve lifter engines, where a weak hydraulic lifter may bleed down overnight causing an increase in clearance on that valve resulting in a tick until that lifter "pumps up" and can close the clearance. As we all know, our FJR's don't have hydraulic lifters. I'm not saying to worry at this point, but it may warrant further investigation if it keeps happening or gets louder. Just my 2 cents. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
50 miles and broke already
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