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11-06-09,, 06:16 PM
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Forum Veteran
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Join Date: 07 09
Location: Vidalia, Georgia
Posts: 603
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lash settings
ive had several different people tell me several diff settings.. wat exactly does valve lash do an wat is the difference in settings and wat are some good numbers to set it at on the intake and exhaust? thanx in advance
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11-06-09,, 06:19 PM
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Service Dawg
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Join Date: 10 08
Location: Bardstown, KY
Posts: 6,762
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Re: lash settings
0..........
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11-06-09,, 07:26 PM
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4 Cycle Premium Member
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Join Date: 10 08
Location: Miamitown Ohio
Posts: 1,566
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Re: lash settings
It keeps the compression in the cylinder longer I believe, everyone has there own idea on settings, but one thing is certain, adjust them tighter than factory with the exhaust valve being slightly wider because of heat!
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11-06-09,, 08:13 PM
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Forum Veteran
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Join Date: 05 09
Location: Gulf Breeze, Florida
Posts: 661
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Re: lash settings
I set them at 0.
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11-06-09,, 08:47 PM
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Forum Veteran
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Join Date: 12 08
Posts: 768
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Re: lash settings
0..... Zero
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11-06-09,, 08:47 PM
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812 Motorsports
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Join Date: 03 05
Location: Southern, Indiana
Posts: 1,548
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Re: lash settings
Yep, set mine to 0 cold
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11-06-09,, 08:56 PM
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Forum Veteran
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Join Date: 09 09
Location: Sanford, NC
Posts: 387
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Re: lash settings
will you feel the seat of the pants dyno change in a motor thats running STOCK lash. be it .005-.010 whatever to zero to .001??
really????
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11-06-09,, 09:05 PM
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Forum Veteran
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Join Date: 02 06
Posts: 1,717
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Re: lash settings
Quote:
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Originally Posted by 1992suburban
will you feel the seat of the pants dyno change in a motor thats running STOCK lash. be it .005-.010 whatever to zero to .001??
really????
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No you will not "feel" it.... every tenth of a second counts...you gain 1/10... you did well... now look for the next 1/10 second... 
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11-06-09,, 09:20 PM
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812 Motorsports
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Join Date: 03 05
Location: Southern, Indiana
Posts: 1,548
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Re: lash settings
Very true! Every little bit counts.
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11-07-09,, 04:42 AM
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Forum Veteran
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Join Date: 07 09
Location: Vidalia, Georgia
Posts: 603
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Re: lash settings
dang my feeler gauge dnt go that low lol... 0...
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11-07-09,, 05:39 AM
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Forum Veteran
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Join Date: 12 08
Posts: 345
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Re: lash settings
Quote:
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Originally Posted by Richracing1819
ive had several different people tell me several diff settings.. wat exactly does valve lash do an wat is the difference in settings and wat are some good numbers to set it at on the intake and exhaust? thanx in advance
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0 to .001 is best.on a stocker you need all the valve lift you can get & you basically don't want the valve to be open any amount on start up and during compression cycle.the exhaust valve needs to transfer all heat it can to the seat/head as the alum head gets hot the valve lashes opens a bit when warm due exspansion.
*too loose will slam on the valve train when opening & closing & cost you air flow due to delayed valve opening.It will also leave engine feeling like it has shorter duration or less valve open time to get a fresh charge. I can tell you on a v-8 steel small block w/ alum heads I went about .006 tighter than spec cards due to expansion when warm and it was about right. Extreme for a small engine but gives you an idea.
**loose lash - slightly more low end,less valve open time,harder on parts. tight lash more mid to top, more valve open time due to more air flow.
I don't know if you would see any of this be noticeable on a stock engine but I am sure a modified level engine would show you something. hope this explains it.
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11-07-09,, 07:01 AM
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Forum Veteran
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Join Date: 02 06
Posts: 1,717
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Re: lash settings
Quote:
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Originally Posted by Richracing1819
dang my feeler gauge dnt go that low lol... 0...
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We have a zero feeler gauge and drill bits so small you can not see them. I can't seem to find either one in the shop.... 
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11-07-09,, 09:19 AM
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Sneak's Racing
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Join Date: 05 06
Location: Schenectady New York
Posts: 3,499
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Re: lash settings
Common guys..
Zero is a magical number impossible to reach....001" to be safe and avoid any starting problems till warm...Once your heated up the lash will be closer to .004"..."Tip of the week" - Slightly tightening the lock nut before adjusting the lash will reduce how much tighter the lash gets on final lockdown...
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11-07-09,, 09:22 AM
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Sneak's Racing
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Join Date: 05 06
Location: Schenectady New York
Posts: 3,499
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Re: lash settings
I also sell .000" feeler gauges if anybody whats one...I can send them with Reiki...
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11-07-09,, 10:07 AM
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Member
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Join Date: 07 09
Location: Chillicothe, Ohio
Posts: 19
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Re: lash settings
I find .00015 works best on short, tight tracks.
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11-07-09,, 10:16 AM
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Sneak's Racing
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Join Date: 05 06
Location: Schenectady New York
Posts: 3,499
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Re: lash settings
Quote:
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Originally Posted by dirtrakr
I find .00015 works best on short, tight tracks.
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That would be Reynald's Wrap aluminum foil...
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11-07-09,, 12:32 PM
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4 Cycle Premium Member
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Join Date: 10 08
Location: Miamitown Ohio
Posts: 1,566
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Re: lash settings
sneaks how much will shipping cost on that .000" feeler gauge? and are they cheaper by the box?
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11-07-09,, 05:32 PM
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Sneak's Racing
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Join Date: 05 06
Location: Schenectady New York
Posts: 3,499
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Re: lash settings
Quote:
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Originally Posted by Tom 513
sneaks how much will shipping cost on that .000" feeler gauge? and are they cheaper by the box?
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Too Funny Tom...
Hhhhmmmm , Would you like metric or standard ?  It makes a difference...
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11-07-09,, 06:33 PM
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Forum Veteran
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Join Date: 07 09
Location: Vidalia, Georgia
Posts: 603
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Re: lash settings
who do we need to talk to about becoming a dealer seems like the overhead would be purty cheap
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11-08-09,, 06:31 AM
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Sneak's Racing
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Join Date: 05 06
Location: Schenectady New York
Posts: 3,499
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Re: lash settings
Quote:
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Originally Posted by Richracing1819
who do we need to talk to about becoming a dealer seems like the overhead would be purty cheap
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I will check with MDBike ...I usually buy from him...I dropped one on the floor yesterday and I'll be danged if I can find it... 
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