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Classic Goldwing Technical Forums
General Classic Goldwing Technical Forum
Adjusting valves cold
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<blockquote data-quote="AApple" data-source="post: 132251" data-attributes="member: 56"><p>There is a reason that the specs are listed for both Hot and Cold. Cold is where you want to start the adjustments...a baseline if you will. The actual, running clearances should be set with the engine hot(or normal operating temp) since when the engine is running...it's usually hot. :yes: </p><p>Steel valves DO expand....it's a minute amount, but enough to sometimes create a problem if the cold clearance is too tight to start with.</p><p>Cold clearance will get it running....hot clearance adjustments are where you do the fine tuning, if needed. :good: </p><p>As for how long to let one sit to cool...it depends. Rule of thumb would be that the head should be cool to the touch.</p><p></p><p>An auto engine with hydraulic lifters can be <strong>pre</strong>-set without the engine running, since the hydraulics will automatically adjust the clearance once running, and pressurized with the engine oil. But it's way more accurate(and fun) to adjust them with the engine running. :hihihi: Back the adjustment off until you hear the rocker rattle, then tighten SLOWLY until the rattle stops...then aboot 1/4-1/2 turn more. :builder:</p></blockquote><p></p>
[QUOTE="AApple, post: 132251, member: 56"] There is a reason that the specs are listed for both Hot and Cold. Cold is where you want to start the adjustments...a baseline if you will. The actual, running clearances should be set with the engine hot(or normal operating temp) since when the engine is running...it's usually hot. :yes: Steel valves DO expand....it's a minute amount, but enough to sometimes create a problem if the cold clearance is too tight to start with. Cold clearance will get it running....hot clearance adjustments are where you do the fine tuning, if needed. :good: As for how long to let one sit to cool...it depends. Rule of thumb would be that the head should be cool to the touch. An auto engine with hydraulic lifters can be [b]pre[/b]-set without the engine running, since the hydraulics will automatically adjust the clearance once running, and pressurized with the engine oil. But it's way more accurate(and fun) to adjust them with the engine running. :hihihi: Back the adjustment off until you hear the rocker rattle, then tighten SLOWLY until the rattle stops...then aboot 1/4-1/2 turn more. :builder: [/QUOTE]
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Classic Goldwing Technical Forums
General Classic Goldwing Technical Forum
Adjusting valves cold
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