Dwayne Oxford Posted August 26, 2020 Share Posted August 26, 2020 Attempting to diagnose my distributor module issue. Already disconnected tach, which didn't help. Want to disconnect pump control from coil to see if it's affecting dist. module. Thinking it's got couple? safety functions, wanting to leave other(s) working. Hoping somebody's got function info. Quote Link to comment Share on other sites More sharing options...
Step-a-toe Posted August 26, 2020 Share Posted August 26, 2020 I think it has only one function - to only supply power and maybe also earth to the fuel pump once engine is running. And as you know, relies on a signal from the coil to control stuff. I don't know if it has a momentary prime on initial ignition switch on as fuel injection and propane safeguards have. Think I have seen the safety box has six wires. I use propane safety control units that are just four wire, or even just 3 when mounting bracket is the earth connection 1 Quote Link to comment Share on other sites More sharing options...
Dwayne Oxford Posted August 26, 2020 Author Share Posted August 26, 2020 Was hoping it had another safety in it. Any idea what/how the the pulse sensor activates the unit? Never heard pump activate at initial ignition on. Yep, has 6, why I hoped it had 2 functions. Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 27, 2020 Share Posted August 27, 2020 (edited) It does have two functions. It also powers the choke. The FPCU uses the same tach signal as the tach. Negative coil wire. It's looking for the falling edge of the same signal that triggers the coil from the distributor module. What is your "distributor module issue"? GD Edited August 27, 2020 by GeneralDisorder 1 Quote Link to comment Share on other sites More sharing options...
Step-a-toe Posted August 27, 2020 Share Posted August 27, 2020 Two functions. One safety, one convenience yeah as GD asks, better refresh your module issue while he is in the room 1 Quote Link to comment Share on other sites More sharing options...
Dwayne Oxford Posted August 28, 2020 Author Share Posted August 28, 2020 At high speed, 65-70, it breaks down. Tach sometimes jumps up, most times down and fire is lost. Can drop speed to 45-50 and it does better, still glitches a little. Disconnected tach wire from cluster, did OK one trip, then began same again. Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 28, 2020 Share Posted August 28, 2020 1 hour ago, Dwayne Oxford said: At high speed, 65-70, it breaks down. Tach sometimes jumps up, most times down and fire is lost. Can drop speed to 45-50 and it does better, still glitches a little. Disconnected tach wire from cluster, did OK one trip, then began same again. Your distributor shaft bushings are shot. Has nothing to do with the module. GD 2 Quote Link to comment Share on other sites More sharing options...
Step-a-toe Posted August 28, 2020 Share Posted August 28, 2020 I have seen one dodgy HT lead cause tacho grief What sort of job is it to rebush an EA81 dizzy GD? I have a worn bushing with sideways play up top 1 Quote Link to comment Share on other sites More sharing options...
Dwayne Oxford Posted August 28, 2020 Author Share Posted August 28, 2020 HT lead=plug wire? Dist. is tight. Orig. had Nippondenso dist. Module failed, they're EXPENSIVE, so replaced with Hitachi. Got new coil that's Hitachi FSM specs, installed resistor and resistor start bypass wire, which was not on car. Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 28, 2020 Share Posted August 28, 2020 (edited) 83 should not have a ballast resistor. Put the car back to stock the way you found it with the correct parts. It was not designed to have a resistor dropping the voltage while running. You have caused this failure by attempting to modify the ignition system incorrectly. GD Edited August 28, 2020 by GeneralDisorder 1 Quote Link to comment Share on other sites More sharing options...
Dwayne Oxford Posted August 28, 2020 Author Share Posted August 28, 2020 I configured it as the car I removed distributor from. Quote Link to comment Share on other sites More sharing options...
TIMBERTIGER Posted August 29, 2020 Share Posted August 29, 2020 I had the exact same problem. Worn bushings in the distributor as stated above. I couldn't find any worthy avenues for rebuilding so I'm ended up buying a new distributor. Problem solved! 2 Quote Link to comment Share on other sites More sharing options...
Dwayne Oxford Posted August 30, 2020 Author Share Posted August 30, 2020 Hmm, was tight when I pulled it out of other car, I'll recheck. Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 30, 2020 Share Posted August 30, 2020 Philbin manufacturing in Portland, OR. I have had several distributors re-bushed by them. GD 1 Quote Link to comment Share on other sites More sharing options...
Dwayne Oxford Posted August 30, 2020 Author Share Posted August 30, 2020 How much for Hitachi? Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 30, 2020 Share Posted August 30, 2020 4 hours ago, Dwayne Oxford said: How much for Hitachi? You will have to call them. Been many years since I had the need. Probably a couple hundred would be my guess with rebuilding the complete unit including the vacuum advance, etc. GD 1 Quote Link to comment Share on other sites More sharing options...
Dwayne Oxford Posted August 30, 2020 Author Share Posted August 30, 2020 $211.50 http://www.philbingroup.com/rebuilt/catalog/part/10-0810.html Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 30, 2020 Share Posted August 30, 2020 Yeah but is that a whole unit or a price for service? And the web site is copyright 2004 so I don't believe anything on it. They do good work though. Small distributor shop - very old and cluttered. Staffed by grey beards. GD 1 Quote Link to comment Share on other sites More sharing options...
Dwayne Oxford Posted August 30, 2020 Author Share Posted August 30, 2020 https://www.rockauto.com/en/catalog/subaru,1982,gl,1.8l+h4,1268298,ignition,distributor,7108 Quote Link to comment Share on other sites More sharing options...
Dwayne Oxford Posted August 30, 2020 Author Share Posted August 30, 2020 1 hour ago, GeneralDisorder said: Yeah but is that a whole unit or a price for service? And the web site is copyright 2004 so I don't believe anything on it. They do good work though. Small distributor shop - very old and cluttered. Staffed by grey beards. GD I'll call them tomorrow. Hoping they'll just rebush one of mine. Quote Link to comment Share on other sites More sharing options...
GeneralDisorder Posted August 31, 2020 Share Posted August 31, 2020 2 hours ago, Dwayne Oxford said: I'll call them tomorrow. Hoping they'll just rebush one of mine. They will. That's what they do. GD 1 Quote Link to comment Share on other sites More sharing options...
Dwayne Oxford Posted September 16, 2020 Author Share Posted September 16, 2020 Thanx y'all! Didn't realize how much the bushings were worn. Had .015" slop at top. Got blessed to find a Cardone rebuild on Ebay for $120. https://www.ebay.com/itm/REMAN-OEM-DISTRIBUTOR-42987-8110-DR480-03-FITS-SUBARU-DL-GL-BRAT-31-810/274358924769?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 Superoo's back out on big road. Quote Link to comment Share on other sites More sharing options...
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