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Date: 7-23-08 02:23
From: Colin in San Francisco
Subject: Re: Valve Adjustment help in NY
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| c.d.iesel wrote: | .... "A HAPPY VALVE IS A TICKING VALVE" .
Really
no ticking means zero clearence - BAD
to much tapping means too much clearence,
worn rocker shafts , worn rocker arms,
or other valve gear wear, worn out chain
tensioner not holding tension ?
double check your adjustments COLD
set to 0.006" |
Hi C.D. I have read that it is better to go with 0.008" on the clearance as it requires less re-adjustment than 0.006". Is there any merit to this?
Thanks. _________________ www.sfrecording.com
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Date: 7-24-08 08:56
From: mike in Beavercreek, OH
Subject: Valve Adjustments--tricks of the trade...
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When I adjust my valves, I generally put the car in 4th (or 5th) gear and roll it back and forth, checking/adjusting valves as a particular cylinder comes into equilibrium (both valves closed, rocker arms resting on the low side of their cam lobes, well away from the high side. This indicates that cylinder is on the power stroke. As I adjust the valves, I either wipe the oil off the rocker to show I've adjusted that valve, or mark it with a magic marker (it'll wash/wipe off easily). That way I know I've done all the valves, and it's easier (less work pushing) than trying to do the cylinders in order.
To make sure I get the adjustment right, I use two feeler gauges: a .007 and a .008. If the .007 goes in and slides out with just a little resistance, and the .008 won't go at all, then I've got it. I tend to split the difference between .006 and .008 (the range the manual gives). You can also buy feeler gauges that are stepped--they're called "go-no go gauges" but two feeler gauge leaves work just as well.
As CD said, a little noise is OK. Tight valves burn. If you have more noise now than you did, you may have gotten one just a little too loose; go back and check your work. And you also may have worn eccentrics or worn rocker arms/shafts. You can buy new standard sized eccentrics for the former problem, and Ireland makes oversize eccentrics to compensate for worn rockers and shafts.
cheers
mike _________________ '69 Nevada sunroof--"Wolfgang"--bought new
'73 Sahara sunroof-- "Ludwig"--mine since '78
'87 eta E30 coupe--"Johannes"
+ Fiat Topolini (Benito & Luigi), Renault 4CVs (Anatole, Lucky Pierre, Brigette)...
and Kermit, the Bugeye Sprite
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Date: 7-24-08 10:05
From: Sarki in New York
Subject: Re: Valve Adjustments--tricks of the trade...
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| mike wrote: |
To make sure I get the adjustment right, I use two feeler gauges: a .007 and a .008. If the .007 goes in and slides out with just a little resistance, and the .008 won't go at all, then I've got it. I tend to split the difference between .006 and .008 (the range the manual gives).
As CD said, a little noise is OK. Tight valves burn.
cheers
mike |
I used a standard type feeler gauge which was a bit difficult to maneuver due to the space constraints. Wondering if there is another type that might work better. I suspect I may have adjusted them a bit loose as I went with .008 and had difficulty with the feeler gauge due to accessibility. _________________ 74 Tii
01 S2000
06 Tacoma
"Why Johnny Ringo, looks like somebody just walked ova your grave" -Tombstone-Val Kilmer
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Date: 7-24-08 03:51
From: JohnC in Sierra Madre, CA
Subject: Re: Valve Adjustments--tricks of the trade...
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| Sarki wrote: |
I used a standard type feeler gauge which was a bit difficult to maneuver due to the space constraints. Wondering if there is another type that might work better. I suspect I may have adjusted them a bit loose as I went with .008 and had difficulty with the feeler gauge due to accessibility. |
I suspect that you're too loose if you were using an .008. You should go back and do as Mike says, use a go/no go technique. Yes a regular feeler gauge may be moderately difficult to maneuver, but you should be able to get them right. I suggest that before you change anything, Start by checking them all using the go/no go technique. Keep trying bigger feeler gauges until you can't get one in. Then you'll know exactly where your and which need to be adjusted.
Take your time. It just takes a little practice and patience. Always double check after you tighten the nut. _________________ John Capoccia
Sierra Madre, CA
'70 Granada megasquirt, 5 spd, 3:91
'74 Golf tii stock
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