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My $100 1983 944 Farm Find Mud Rescue Resurrection Thread

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Old 10-23-2018, 05:01 PM
  #106  
Trekintosh
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Originally Posted by Luis de Prat
This can rule out the DME relay, but not the DME itself. When they go bad, the car can run haphazardly or not run at all.
So if I jump the relay the car could run in theory? Or would there be a different test to rule out the DME?
Old 10-23-2018, 05:51 PM
  #107  
Swenny
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Originally Posted by Trekintosh
So if I jump the relay the car could run in theory? Or would there be a different test to rule out the DME?
Jumping the DME relay is done if you suspect a bad DME relay. I thought that you had suspected bad fuel injectors?
Old 10-24-2018, 02:12 PM
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Originally Posted by Swenny
Jumping the DME relay is done if you suspect a bad DME relay. I thought that you had suspected bad fuel injectors?
I do suspect bad injectors. My apologies, I thought you were implying that the symptoms were indicative of a bad DME.
Old 10-24-2018, 02:39 PM
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Originally Posted by Trekintosh
I do suspect bad injectors. My apologies, I thought you were implying that the symptoms were indicative of a bad DME.
I think that you're on the right path. Check the injector atomization before you replace the injectors or the DME.
Old 10-24-2018, 05:51 PM
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Watch out about the visor clips! They changed in 85...early/late differences there's a difference in the diameter of the visor rods. Ask me how I know..no don't LOL
!
Old 10-24-2018, 05:55 PM
  #111  
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I think form you pics/video the other day, it runs well on brake cleaner..That's a real PLUS! There are several injectors that will work better?/substitute/ in this car than the original Bosch ones. Because I was broke at the time and my injectors were all locked up solid...I bought some GM injectors (for a Buick) I think for about 40.00 a piece...IIRC.
Old 10-24-2018, 06:02 PM
  #112  
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Originally Posted by Tiger03447
I think form you pics/video the other day, it runs well on brake cleaner..That's a real PLUS! There are several injectors that will work better?/substitute/ in this car than the original Bosch ones. Because I was broke at the time and my injectors were all locked up solid...I bought some GM injectors (for a Buick) I think for about 40.00 a piece...IIRC.
Woah, hang on, just regular old Buick injectors? And they just work? What kind of modification was needed?
Old 10-25-2018, 12:02 AM
  #113  
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Okay so we got new injectors anyways and even after throwing them on, the thang ding still won’t run. We did check the new injectors for atomization, and they all squart. The car will attempt to fire, make it to somewhere between 500 and 1000 rpms, then die. I’ve uploaded a video of our start attempts:


the only part of the fuel system we haven’t touched is the pressure regulator and dampener. I suppose that’s where I’ll go next. I borrowed the pressure tester from Oreilley’s but it didn’t have a fitting that would go on the fuel rail so all I can really do is eyeball how much fuel sprays out when I pull the fuel rail cap off.
Old 10-25-2018, 04:24 PM
  #114  
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So you have new injectors and they work so you're going to change the FPR&FPD for the heck of it? There are tests for those two parts. Check out this page https://m.youtube.com/watch?v=1WuZuPcVuqM
for troubleshooting a no start. I'm not saying this is what's wrong with your P-car but it's a path to follow. That is assuming the timing is correct,that you have compression etc.
Old 10-25-2018, 05:56 PM
  #115  
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I figured it out. Whoever had made the fuel pump wires decided that RED was negative and BLACK was positive. I hooked up the pump assuming the wires were made by a sane person, so the pump was running backwards! That's why when I primed it with my booster pack it worked perfectly, pressurizing the rail, but when I didn't it wouldn't.

Low and behold when I went to start it, something amazing happened!

Old 10-25-2018, 07:39 PM
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400hp944
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NICE! Must feel great to hear it purr like that.
Old 10-25-2018, 07:57 PM
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I know that feeling, congrats!
Old 10-25-2018, 08:29 PM
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Originally Posted by 400hp944
NICE! Must feel great to hear it purr like that.
Sure does!

Originally Posted by pfarah7
I know that feeling, congrats!
Thanks!

So unfortunately I cannot drive it yet. The right front brake caliper is seized solid. I cannot compress it. Not sure what to do other than pull it off and rebuild it. I could spray it with PB Blaster to try and just unstick it a bit, but I don't know if that will help.
Old 10-28-2018, 08:35 AM
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Take it apart..Mine were lumps of rust (all 4). Glad to hear the engine running! I took the less recommended way and just went to AutoZone and bought the hydraulic section of the caliper with a lifetime warranty. Take a few pics on how they are assembled before taking them apart. Or, just take one apart at a time and reassemble it before going to the other. You can beadblast and derust all the heavy parts prior to painting...Getting the heavy wire clip onto the caliper can be frustrating if you don't have something to go by..Just saying..
Old 10-29-2018, 02:47 PM
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It runs and drives!!

been driving it around. Definitely needs tires, wheel balancing, and an alignment. Oil pressure is a bit low as well, reads about 1.5 bar at 900rpm idle. For now I’ve raised the idle to 1050rpm which keeps it at just a hair under 2 bar. Might be the crank pully not being tight enough, or the relief valve according to clark’s Garage.

Good news: the clutch is solid! No terrifying transaxle drop for me!

The sunroof leaks a bit, so it’ll have to stay indoors on rainy season.

Overall it drives well and the engine pulls really strong. I’m stoked.


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