Djet - can this be saved?, Which Djet is this and is it salvageable |
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Djet - can this be saved?, Which Djet is this and is it salvageable |
seanpaulmc |
Feb 1 2020, 05:18 PM
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#1
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Member Group: Members Posts: 300 Joined: 6-December 16 From: Orlando, FL Member No.: 20,649 Region Association: South East States |
Dear 914 Brain Trust -
I picked up this D-jet system for perhaps some day down the road. Would like to get your opinion on the D-jet system (in general) and if this box of equipment seems salvageable or not. I'm thinking 2056 down the road if I were to keep, renew, and use this. However, I need to know if this is for a 2.0L or not. Are all the pieces there? Some are pretty cruddy and look like they'll need replacement. $$$ What's missing? Can the ECU be tested? How to test out the other components? I tried to capture part numbers where possible but there was no part number on the ECU, just an RT in a circle and 331. Nothing legible. So, what do you think? Slowly refurbish it, or sell it for parts? As always, appreciate the great input here. Thanks, Sean |
BeatNavy |
Feb 1 2020, 05:52 PM
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#2
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Certified Professional Scapegoat Group: Members Posts: 2,924 Joined: 26-February 14 From: Easton, MD Member No.: 17,042 Region Association: MidAtlantic Region |
Here, you can go through this in detail and check: https://members.rennlist.com/pbanders/DJetParts.htm
It has some testing procedures for individual components. But in general it does look like 2.0 D-Jet ('74 and later). The air box and plenum are definitely 2.0. The MPS p/n (043) is a '74 and later 2.0 MPS. I think I see green injectors, which are 2.0. Most of the other stuff is not specific to 2.0 (e.g., fuel pump, fuel pressure regulator, decal valve, AAR, etc.). The fuel pump looks trashed. I doubt that would work (or work for long). I'd get the injectors serviced by someone like Mr. Injector. Soak the decal valve in PB Blaster. The ECU can be tested on another car or with one of those D-Jet analyzer tools (e.g., Janbo) that Jeff Bowlsby probably has. Those are pretty hardy though, so it's probably good. I'd check the wiring harness for continuity and look for shorts. |
ejm |
Feb 1 2020, 06:56 PM
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#3
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I can see the light at the end of the tunnel Group: Members Posts: 2,692 Joined: 3-February 03 From: Massachusetts Member No.: 224 Region Association: None |
You'll also need a distributor with trigger points to make that system work.
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914werke |
Feb 1 2020, 07:42 PM
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#4
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"I got blisters on me fingers" Group: Members Posts: 10,082 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
Beat me to it, didnt see an Dizzy...
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JeffBowlsby |
Feb 1 2020, 09:37 PM
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#5
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914 Wiring Harnesses Group: Members Posts: 8,510 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
Looks like a good start on the system. Even if it complete, no doubt one or more parts probably don't work. Each part is easy enough to test see the Nadres site linked above.
That harness is a core only...you'll need a new one. |
seanpaulmc |
Feb 2 2020, 08:01 PM
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#6
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Member Group: Members Posts: 300 Joined: 6-December 16 From: Orlando, FL Member No.: 20,649 Region Association: South East States |
Thanks for the feedback everyone. Identified as a Djet system for a 1974 2.0L or later.
Thanks for the link to the Djet site BeatNavy. That site has some great comprehensive information. I also appreciate the feedback on the harness JeffBowlsby. I agree about replacing. You’ll have a future customer soon. And, I do not have the dizzy. Will need to source one. Other items include: Rebuild the MPS upfront. Get the injectors serviced. Test fuel pump / better to replace. Replace all hoses. Clean and inspect throttle body. Source the other bits and pieces. Questions: Does anyone here test the ECU? Do I need an original distributor that works this system or are there preferred aftermarkets varieties? Anyone have a good working dizzy that would work in this application? |
JamesM |
Feb 2 2020, 11:10 PM
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#7
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Senior Member Group: Members Posts: 1,900 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region |
Questions: Does anyone here test the ECU? No, but they rarerly die Do I need an original distributor that works this system or are there preferred aftermarkets varieties? Anyone have a good working dizzy that would work in this application? You have to have a distributor with d-jet trigger points, not to mention a working set of trigger points which are a wear item and NLA. These guys make a moddern verions and are probably your best bet https://123ignitionusa.com/porsche/ Ive assembled (and past smog tests with) a few d-jet systems from piles of parts and it looks like you have a really good start there. As others have said, fuel pump and injectors are the real unknowns. I would get a new two port fuel pump just on principal. Old harness may be a gamble but you can test it prior to installing. Perform a vaccum test on the MPS, it may be good to go and if not they are rebuildable. Anything else that looks cruddy can be cleaned up and made to work without to much effort |
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