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Re: Valve Clearances? (archive)
[ Follow Ups ] [ 3-series (E30) Message Board ] [ Msg. Board FAQ ]
Posted by andyman on June 26, 2000 at 07:10:22:

In Reply to: Re: Valve Clearances? posted by Thomas Goodwin on June 25, 2000 at 20:10:26:

try messing with the ICV valve. my car's RPM would drop so fast when shifting, that sometimes would stall cause the idle couldn't kick in fast enough. adjusting the ICV set screw totally fixed that for me, so I'm a happy camper. about the AC, I wouldn't know cause my freon is low and the compressor won't run.

: : To those that adjust there own valves:

: : do you set it to factory specs?
: : less than or greater than factory spec?
: : how is the idling?

: : my 89 at factory spec: .25mm (.010) it idles rough and misfires, will increasing it to .011 or .012 smooth down the idle amd misfires abit?

:
: I set mine to .010 too a few weeks back and thought that I must have had it wrong (set them a little off possibly) and so I did it an additional 3 times and my brother attempted it once too. All times we got basically same result as you. misfire and really rough. I don't get it either. Some have said setting it to .012 will even the idle out a bit, but I couldn't care about the missing or the rough idle (especially). really all I want my car to do is idle normally and fall back to idle in a reasonable amount of time while my AC is turned on. I've timed it with my watch and when the AC is off, it'll take about a second or more to fall from around 2-3000 rpm (from the moment I take my foot off the gas) and when the AC is on for any length of time, the idle takes well over 5 seconds from the same point!! I'm so frustrated over it I'm thinking of selling the AC system out of my car (And I'm in central Texas, where it's 98% humidity while bright and sunny at 95+ degrees.) If anyone has a fix for either of those two problems, please post them!

: TIA,
: Thomas Goodwin

: PS: moral of reply -> Don't do what I do. I thought I had it wrong when I actually got it "right". Don't waste your time doing the valve clearance over and over again like me.



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