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#1
09-12-2013, 11:42 PM
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1976 W114/115 300D not starting
Okay, so I purchased this car last Sunday for a grand.
Ran beautifully, had a little trouble getting started but with a new battery did fine. Got it home, turned off and it wouldn't come back. Hooked a charger up to it with the engine start mode and it fired up , but then that charger broke. Other night had it hooked with the jumpers to the f250 diesel and it would turn over, quick too, but just wouldn't fire up. Now I purchased another charger, and let it charge, now the car wont even turn over. Battery light stays on until the battery drains itself. I turn the key, glow plug light lights up, goes off after 20 seconds or so and I go to start an click, nothing now. I'll see a spark come off the battery, also after that I'll have to push the battery a little get the connection again. I was thinking internal voltage regulator. Checked fuses, they all look decent, or connected at least. Any suggestions? Last edited by whunter; 09-13-2013 at 12:04 AM. Reason: spelling, readability 
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#2
09-13-2013, 12:06 AM
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Answer
Sounds like a bad connection at the battery terminal has blown the voltage regulator.
you may find this thread useful and interesting. Welcome to the fleet 1976 W115.114 "300D" dark Green .
__________________
ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/ Last edited by whunter; 09-13-2013 at 12:25 AM.
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#3
09-13-2013, 12:15 AM
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you can blow those ? like the brushes ? I tried removing it but the tiny little flat head screws are sucha ***** to get off. especially with not alot of room in their. The wires going to the regulator were frayed a little and exposed metal, could it have grounded out on the alternator ?
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#4
09-13-2013, 12:38 AM
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Answer
Quote:
Grounding the wrong alternator wire to the case can blow the voltage regulator. Pictures of the wired damage, may help diagnosis. I agree, the screws are a PIA in the tight space, IMO it is slightly easier to remove the alternator and work on a bench. .
__________________
ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/
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#5
09-13-2013, 12:42 AM
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FYI
You really need to read this
I have documented many issues on my daughters 1976 300D in this thread. Welcome to the fleet 1976 W115.114 "300D" dark Green .
__________________
ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/
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#6
09-13-2013, 01:18 PM
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Would having a blown voltage regulator prevent it from starting ? Even with a fully charged battery
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#7
09-14-2013, 12:56 AM
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Answer
Quote:
Odds are there is a glow plug or valve adjustment issue. Seriously plugged fuel filters can also be a factor. .
__________________
ASE Master Mechanic asemastermechanic@juno.com Prototype R&D/testing: Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician. Noise Vibration and Harshness (NVH). Dynamometer. Heat exchanger durability. HV-A/C Climate Control. Vehicle build. Fleet Durability Technical Quality Auditor. Automotive Technical Writer 1985 300SD 1983 300D 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/
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#8
09-14-2013, 10:34 AM
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The glow plug light comes on, yet I don't here any click or noise from the relay, would the light come on if there was a problem? I'm about to replace all the inline filters and do a valve adjustment also probably switch over to the pencil type plugs, I'll let yah know how it goes
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#9
09-16-2013, 06:33 PM
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But now that it wont even turn over, it just clicks , you could assume its the starter ?
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#10
09-16-2013, 08:26 PM
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Okaay so I'm dumb and just realized the ground cable looked a bit corroded , re did the wire , started right up! Now onto the preventative maintance
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#11
09-16-2013, 08:57 PM
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Quote:
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#12
09-17-2013, 08:14 AM
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Okay so went to start this morning and no glow plug light, bot sure if maybe the battery just doesnt have enough juice to do it . When I crank it the gp light will comeon an it'll crank but no start .. Can I think it doesnt have enough power or replace gp's
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Linear Mode
