 Lean |
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| StratPlayer |
 May 19 2019, 02:32 PM
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#1
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StratPlayer  Group: Members Posts: 3,335 Joined: 27-December 02 From: SLC, Utah Member No.: 27 Region Association: Rocky Mountains 
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Car is running lean, how to richen it up
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Replies(1 - 13)
| porschetub |
May 19 2019, 02:48 PM
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#2
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Advanced Member Group: Members Posts: 4,869 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(StratPlayer @ May 20 2019, 08:32 AM)  Car is running lean, how to richen it up Factory FI or carbs? |
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| Rand |
May 19 2019, 02:56 PM
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#3
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Cross Member Group: Members Posts: 7,413 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
QUOTE how to richen it up More fuel? (IMG:style_emoticons/default/tongue.gif) I think someone is pulling our leg. I inserted a new foot pedal so his guitar will sound funny until he turns the right knobs. |
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| rhodyguy |
May 19 2019, 03:10 PM
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#4
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,248 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
Factory Djet. Not sure on the dist.
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| StratPlayer |
May 19 2019, 05:56 PM
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#5
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StratPlayer Group: Members Posts: 3,335 Joined: 27-December 02 From: SLC, Utah Member No.: 27 Region Association: Rocky Mountains
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Factory DJet 123 dizzy 2056
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| Rand |
May 19 2019, 06:00 PM
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#6
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Cross Member Group: Members Posts: 7,413 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
Is it lean across the rpm range, or just idle?
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| StratPlayer |
May 19 2019, 06:46 PM
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#7
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StratPlayer Group: Members Posts: 3,335 Joined: 27-December 02 From: SLC, Utah Member No.: 27 Region Association: Rocky Mountains
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lean under load, ie: climbing a hill, CHT temp soars to the dangerous range. I have a dakota digital CHT gauge installed thot's I can say the dangerous range. I have the cooling flaps open for summer driving.
I just opened them up last week when I saw those CHT temps soaring under load. Speed 75 5th gear rpm 3100. will pull the plugs tomorrow to inspect them. Running lean |
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| 76-914 |
May 19 2019, 07:03 PM
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#8
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,734 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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Jim, if it only happens during a climb out on the Hi-Way I'd suspect the MPS needs a little adjustment on the full load. It's been so damned long since I futzed with D-Jet but IIRC there is an adjustment for the full load "only" side. One of the adjustments effect both ends and I forget but maybe there is also a 3rd function. Drop it off at Eric's. (IMG:style_emoticons/default/biggrin.gif)
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| StratPlayer |
May 19 2019, 07:22 PM
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#9
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StratPlayer Group: Members Posts: 3,335 Joined: 27-December 02 From: SLC, Utah Member No.: 27 Region Association: Rocky Mountains
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Eric and I discussed this, car will going in next week.
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| JRust |
May 19 2019, 08:49 PM
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#10
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914 Guru Group: Members Posts: 6,317 Joined: 10-January 03 From: Albany Oregon Member No.: 129 Region Association: Pacific Northwest
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Man for some reason when your motor went last time. I thought you went crazy & had Eric throw a 6 in there
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| StratPlayer |
May 29 2019, 03:24 PM
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#11
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StratPlayer Group: Members Posts: 3,335 Joined: 27-December 02 From: SLC, Utah Member No.: 27 Region Association: Rocky Mountains
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Update: Well the car went into PMB to find the lean issue. The following photo's are courtesy of PMB. The MPS had to be rebuilt, someone was in there before and solder a bead to try and stop it from leaking of course at that time there were no rebuilt kits for the MPS. The big culprit turned out to be the plenum as you will see in the pics. The plenum was tig welded completely, cracks everything.. Air Sucking Bitch. Thanks to my dakota digital CHT gauge it saved this engine from some serious damage. It's a new build as well.
 Cylinder #3 CHT gauge attached to it.Attached image(s)       
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| 76-914 |
May 29 2019, 04:57 PM
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#12
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Repeat Offender & Resident Subaru Antagonist Group: Members Posts: 13,734 Joined: 23-January 09 From: Temecula, CA Member No.: 9,964 Region Association: Southern California
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Shit. That plenum was a leaker. I'll bet it pulls better now.
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| johnlush |
May 29 2019, 07:47 PM
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#13
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What's all this then? Group: Members Posts: 376 Joined: 26-May 04 From: Cheyenne, WY Member No.: 2,108 Region Association: Rocky Mountains
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Kudos to you for spotting the issue and getting it addressed before it caused serious issues. Refinished plenum looks awesome! (IMG:style_emoticons/default/beerchug.gif)
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| jim_hoyland |
May 30 2019, 05:49 AM
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#14
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Get that VIN ? Group: Members Posts: 9,804 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California
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Way to go (IMG:style_emoticons/default/smile.gif) Great analysis and quick results.
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