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#31
10-30-2020, 10:37 AM
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Yup, that's a ballast resistor alright. You can probably eliminate it but you should replace it with a strip fuse. It is in the circuit to prevent, or at least lessen, excess voltage/wear on the loop elements of the glow plugs.
Source a strip fuse from a later model year W115 or W123 and install it in its place. 
__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.” ― Brian P. Cleary, You Oughta Know By Now 
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#32
10-31-2020, 08:37 AM
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I wonder why your photos keep disappearing? I saw the ballast resistor on your earlier post but now it is gone.
__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.” ― Brian P. Cleary, You Oughta Know By Now
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#33
10-31-2020, 08:57 AM
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I unfortunately have not been able to ever see his photos. I have tried on both PCs and my (old) iphone. Yes, it is odd. I suspect it is how the photos are inserted. I always attach photos to a post manually, which is a bit of a pain. If you link to photos in the middle of a post, I think it is less reliable. But I am just guessing. I wish I could help the OP more. From everyone's comments, I suspect he has a bit of an unusual GP wiring layout.
__________________
1968 220D, w115, /8, OM615, Automatic transmission. My 1987 300TD wagon was sold and my 2003 W210 E320 wagon was totaled (sheds tear).
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#34
10-31-2020, 09:31 AM
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He has the old style ballast resistor which looks like the heater resistor box. 99% of those resistors had been changed over to the standard ceramic encased style we are used to seeing.
First post. the far right photo. 1966 200D Knobs, Guages, Glow Plug ??
__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.” ― Brian P. Cleary, You Oughta Know By Now
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#35
10-31-2020, 10:40 AM
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I'm posting pictures from Google photos. They show up when I view from my desktop but not on my phone. Will try to figure it out and repost.
Thanks
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#37
10-31-2020, 03:32 PM
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Quote:
__________________
- Greg - 1973 220D, The Prodigal Benz 1974 240D
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#38
11-01-2020, 01:25 PM
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I think the manual is correct for your car. It should give you some guidance as to how things were originally (it is for the OM636 and OM621).
http://www.waypoint121.eu/download/OM636_Preheating.pdf
__________________
1968 220D, w115, /8, OM615, Automatic transmission. My 1987 300TD wagon was sold and my 2003 W210 E320 wagon was totaled (sheds tear).
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#39
11-03-2020, 09:56 AM
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We had a cold morning here (mid 30s) so I did a test start to see how the car starts in the cold (block heater not plugged in). I timed the salt shaker and it actually only took about 20 seconds for it to glow orange. The car started up after cranking for around 5 seconds. I think I was overestimating the time for the glow plugs to get hot in my earlier posts.
So in summary this is a 1967 W110 200D and I have the pencil plugs wired in parallel with the original resistor at the fire wall, salt shaker connected at the dash, and gorilla starter knob. Should I leave this set up alone, or see if it will start faster by bypassing the salt shaker, or possibly the salt shaker and the resistor on the firewall. Unless it will greatly reduce the start time I am probably going to leave it alone, in case I decide to take up smoking and need a place to light up. Thanks for all the help.
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