 Car slowly dies, Just did valve adjustment |
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| Andyrew |
 Feb 16 2004, 09:50 PM
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#1
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Spooling.... Please wait  Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California 
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Just adjusted the valves .005 all around.. Went for a drive.. low idle, then while driving idle crept down and now it wont hold idle. It'll hold at 1.5 for a little (aar closed, engine warm) then it will slowly die.
Any idea's? (IMG:style_emoticons/default/ar15.gif) (IMG:style_emoticons/default/headbang.gif) (IMG:style_emoticons/default/fighting19.gif) Andrew |
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Replies(1 - 12)
| SirAndy |
Feb 16 2004, 10:47 PM
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#2
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Resident German Group: Admin Posts: 41,656 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(Andyrew @ Feb 16 2004, 07:50 PM) Any idea's? you did it wrong? i know, not much of a help here ... <_< |
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| Andyrew |
Feb 16 2004, 10:49 PM
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#3
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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I checked and double checked and checked and bla bla bla.. It was running very strong....
Ya, not much help (IMG:style_emoticons/default/laugh.gif) (IMG:style_emoticons/default/wink.gif) Andrew |
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| Bleyseng |
Feb 16 2004, 11:07 PM
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#4
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Aircooled Baby! Group: Members Posts: 13,035 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
Maybe too tight, how is the vacuum on a gauge?? 15hg with steady needle?
Geoff |
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| Andyrew |
Feb 16 2004, 11:10 PM
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#5
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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I dont honestly know vacume. I'll check that.. (If I can..) Im sure its not that great of vacume, I have idle problems and whatnot.. (the Idle lowered a bit.. like .2k when full warm after adjustment).
And you wonder why I hate this engine... oh if only $$ Andrew |
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| Jeffs9146 |
Feb 17 2004, 10:31 AM
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#6
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Ski Bum Group: Members Posts: 4,062 Joined: 10-January 03 From: Discovery Bay, Ca Member No.: 128 |
If it is a 2.0 Fi, I would check the head temp sensor!
My $.02 Jeff |
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| need4speed |
Feb 17 2004, 11:44 AM
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#7
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Member Group: Members Posts: 339 Joined: 11-April 03 From: Arroyo Grande, CA Member No.: 564 |
Valve adjustments can affect idle speed.
At least on my T1, I normally have to adjust my advance after a valve adjustment, especially if it was way-out. |
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| nebreitling |
Feb 17 2004, 02:14 PM
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#8
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Member Emeritus Group: Members Posts: 3,314 Joined: 26-March 03 From: San Francisco Member No.: 478 |
how far out were your valves at before you adjusted?
did you [accidently?] mis-adjust the timing? if you are 100% sure your valve adjustment is kosher, then just try giving it a tune up. |
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| bob174 |
Feb 17 2004, 03:50 PM
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#9
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Member Group: Members Posts: 125 Joined: 9-January 03 From: League City, TX Member No.: 122 |
Dumb suggestion, but why don't you adjust the valves to the factory recommended clearance and then see how it does?
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| Andyrew |
Feb 17 2004, 08:04 PM
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#10
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Spooling.... Please wait Group: Members Posts: 13,376 Joined: 20-January 03 From: Riverbank, Ca Member No.: 172 Region Association: Northern California
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Ok went for a drive today.. While it was still warming up it didnt have any problems of low idling. Also, I (not dad) think I picked up a bit of hp.. Pulls very nice now.
Dad went for a drive right after, he said its about the same. But he came home and the low idle came back.. Basically it doesnt want to idle. Dad thinks its a tight valve.. So... After my BB game, I'll be checking the valves. (maybe) Andrew |
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| ChrisReale |
Feb 17 2004, 08:29 PM
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#11
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Sleazy Group: Members Posts: 2,665 Joined: 20-January 03 From: San Francisco Member No.: 176 |
QUOTE(bob174 @ Feb 17 2004, 01:50 PM) Dumb suggestion, but why don't you adjust the valves to the factory recommended clearance and then see how it does? Because those were the recommended values more than 30 years ago. Lots of knowledge/advancement has been gathered since then.... |
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| EPK |
Feb 17 2004, 09:50 PM
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#12
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Newbie Group: Members Posts: 20 Joined: 26-May 03 From: Victoria B.C Member No.: 740 |
Will someone who really knows please explain why .005 clearance on the valve lash has been acepted as the correct adjustment.
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| Brad Roberts |
Feb 17 2004, 10:23 PM
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#13
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914 Freak! Group: Members Posts: 19,148 Joined: 23-December 02 Member No.: 8 Region Association: None |
I dont really know.. but I will tell you that we set some engines at ZERO lash. I set some AutoX engines and race engines at .003 some at .004
If you look closely at the cam cards..most say "recommended values" What you dont want is tight clearances when you didnt set them that way. Sometimes we set the valves .006/.006 Its gives us .002 more lift on the exhaust side. When the engine REALLY heats up and expands you end up with more clearance.. so know this going in and compensate for it with tighter clearances. We know our Production engines will see 220 degree oil temps and over 400 deg head temps. B |
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