 How do you fix a 1.8 w Ljet, that is running too lean |
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| jsayre914 |
 May 12 2011, 04:20 PM
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Speed Up !!!  Group: Members Posts: 3,210 Joined: 10-February 08 From: Timonium MD 21093 Member No.: 8,696 Region Association: MidAtlantic Region  |
After seeing the inside of my head, it seems that I have a lean condition. What causes the Lean condition and how can I fix it?
1.8 bone stock with L-jet (IMG:style_emoticons/default/popcorn[1].gif) |
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| Cap'n Krusty |
May 12 2011, 06:37 PM
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Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
The bypass screw in the air box affects only the idle mixture. The fuel pressure isn't adjustable, except for the vacuum applied to the diaphragm under acceleration. It has a "rising rate" fuel pressure regulator. If there were air leaks, it wouldn't start. The big risk in resetting the spring tension in the airbox is getting it to be correct under a range of conditions. It can be done, but it actually requires a fixture and a way to read the injector opening in milliseconds to calibrate the opening vs. the enrichment. That's if you want to do it right. Running too rich has consequences for the driveability.
I'd look at the distributor, making sure the vacuum capsule works properly, and make sure the timing is correct USING THE PROPER TIMING PROCEDURE, which is far different than the procedure used on the D-jet cars. The Cap'n |
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Posts in this topic
jsayre914 How do you fix a 1.8 w Ljet May 12 2011, 04:20 PM
Als914 You can make an adjustment at the airflow meter un... May 12 2011, 05:35 PM jcd914 There is a mixture adjustment screw on the air flo... May 12 2011, 05:49 PM
Drums66
There is a mixture adjustment screw on the air fl... May 17 2011, 11:56 AM SLITS Raise the fuel pressure ....
I would also assume ... May 12 2011, 06:03 PM Rockaria Before you start making adjustments, take off the ... May 12 2011, 07:56 PM jsayre914 thanks for the replies :beer2: May 12 2011, 08:17 PM McMark I had a 912E come into the shop awhile back. The ... May 12 2011, 09:25 PM messix check all the vacuum lines, see if the ends are ha... May 12 2011, 09:37 PM Dave_Darling L-jet + lean == vacuum leak, almost always.
--DD May 13 2011, 12:07 AM Root_Werks
L-jet + lean == vacuum leak, almost always.
--DD... May 13 2011, 08:10 AM mepstein Come by and pick up my 1.8 with 80K. It's comp... May 13 2011, 09:24 AM type47
Come by and pick up my 1.8 with 80K. It's com... May 14 2011, 11:43 AM jsayre914
Yea! Plug 'n play :trophy:
Thanks for... May 16 2011, 09:24 PM jsayre914
Come by and pick up my 1.8 with 80K. It's com... May 16 2011, 09:24 PM |
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