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Post by Deleted on Jun 12, 2013 14:35:50 GMT -5
Ive adjusted both to .002 (.05mm) on two occasions. The second time was just to verify no change.
When I got the scoot they were tight and never herd the tick I hear now properly adjusted but I dont understand why they are louder after hot..cant hear them at all for the first few miles...seems the opposite would be true. Do I need to go to a tighter tolerance?
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Post by devo344a on Jun 12, 2013 14:50:28 GMT -5
They say to adj while cold but to me doesnt make sence I have been adj mine while hot only common sence when hot they expand when cold they retract.
Mine were making noise when heated up I adj when hot no noise and it runs fine.
I know I will probably here alot of kaka about this but it works
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Post by scootnwinn on Jun 12, 2013 14:59:46 GMT -5
As long as they have clearance when hot it should work out. If you don't mind burnt fingers and it works do it I guess. I have always adjust my valves cold on everything I have owned never had any issues...
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Post by devo344a on Jun 12, 2013 15:01:08 GMT -5
Yea your right about the hot fingers but I adj mine to .002 and havnt had any problems yet
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Post by Deleted on Jun 12, 2013 18:43:16 GMT -5
Well I checked them hot and they were still at .002??? set that way when cold. Strange so i just tightened up the intake a bit another .001 while it was hot and it doesnt tap as much now and seems to perform better when the motor good and hot too than it did before.
Did some research and I think if the intake is too loose it will not open fully which will impact performance?
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Post by kyle401 on Jun 13, 2013 8:05:11 GMT -5
When you set them did you make sure the piston was top dead center???
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Post by kyle401 on Jun 13, 2013 8:06:03 GMT -5
Also I have been told to only set valves when cold as when they are hot the metal expands giving an innacurate reading
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Post by sailracer on Jun 13, 2013 8:51:06 GMT -5
They are supposed to be set cold, and at .004.If you have them too tight, when they expand, they may not fully close... Definitely not good.
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Post by Deleted on Jun 13, 2013 8:56:39 GMT -5
Deff not to tight because they were set at .002 cold and still read .002 when hot!
Yes each one was done while the other valve was fully depressed.
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Post by sailracer on Jun 13, 2013 9:51:29 GMT -5
[replyingto=redroush00]redroush00[/replyingto]Set them cold.to .004 at top dead center ( both valves closed-no valve depressed)
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Post by devo344a on Jun 13, 2013 13:29:04 GMT -5
They should be done at TDC neather valve should be depressed both should be closed if depressed its not in the right position on the cam
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Post by sailracer on Jun 13, 2013 14:29:59 GMT -5
Right. If in doubt, just look at the cam sprocket. The large hole should be up, the smaller ones or one, should line up with the surface of the head, and no valve should be depressed.
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Post by scootnwinn on Jun 13, 2013 14:31:31 GMT -5
...and no valve should be depressed. Unless they are already too tight... |
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Post by Deleted on Jun 13, 2013 14:46:59 GMT -5
It is my understanding that either or method is fine. If its TDC, Both valves can adjusted. The other option is when one is fully depressed on the cam lobe you can adjust the other without any problems. Then rotate and do the other. Am i misled?
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Post by scootnwinn on Jun 13, 2013 14:51:19 GMT -5
You are not misled..., yet
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