[DML] Re: Lambda system

["content22207" <brobertson@xxxxxxxxxxxx>]

No coincidence -- your manual idle circuit was set high.

Even if CIS closed the idle speed motor completely trying to get idle
speed back down to its hard wired 750 RPM, if the manual circuit was
open far enough to yield 1,200, there's nothing CIS could do to
override it.

BTW: You didn't need to worry about Screws 2 and 3 (assuming their O
rings are in good shape to prevent vacuum leaks). Simply closing Screw
1 will close the manual circuit.

If automatic equipped CIS shoots for 750 RPM (I don't know -- my
DeLo's a straight drive), your current 1,000 could be caused by the
lower throttle plate screw contacting its stop, cracking open the
throttle plates. 

Or your CIS could be unhealthy.

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, Farrar Hudkins <fhudkins@...> wrote:
>
> Thanks, David!
> 
> Out of curiosity I tightened all three air adjustment screws down to
see 
> what would happen. The engine now idles stable at 1,000rpm. It could be 
> a coincidence, but it's good enough for me. :) I no longer have to jam 
> my foot on the brake at stoplights! It's bad for my shins. LOL
> 
> Cheers,
> Farrar Hudkins
> #2613




To address comments privately to the moderating team, please address:
moderators@xxxxxxxxxxx

For more info on the list, tech articles, cars for sale see www.dmcnews.com

To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews 
Yahoo! Groups Links

<*> To visit your group on the web, go to:
    http://groups.yahoo.com/group/dmcnews/

<*> Your email settings:
    Individual Email | Traditional

<*> To change settings online go to:
    http://groups.yahoo.com/group/dmcnews/join
    (Yahoo! ID required)

<*> To change settings via email:
    mailto:dmcnews-digest@xxxxxxxxxxxxxxx 
    mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx

<*> To unsubscribe from this group, send an email to:
    dmcnews-unsubscribe@xxxxxxxxxxxxxxx

<*> Your use of Yahoo! Groups is subject to:
    http://docs.yahoo.com/info/terms/