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#1
12-05-2007, 07:46 PM
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No power to clock or radio
This is a 78 240D that I just installed an 82 engine and Im still working some bugs out. The clock works fine when the car is running which is ok if you dont mind re setting the clock every time you go somewhere
 , that could be resolved easy but the radio losses its pre-sets every time the cars shut off too. So my question is "where do the clock AND radio get their consent 12Vs?" I would like to avoid pulling the radio.
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 1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car" 
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#2
12-05-2007, 09:33 PM
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radio/internal light fuse keeps blowing
There is currently some short on the 300d. The radio/interior light fuse keeps blowing, which also takes out my radio. So I wired the the power connector (constant power) directly to the battery. The other power wire is still connected to the ignition. My radio works now and I still need to find out why my fuse keeps blowing.
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1987 Mercedes 300sdl, 280k mi (daily driver) 1982 Mercedes 300sd, 205k (occupying driveway) 1985 Mercedes 300d, CA, 148+ mi. 1986 Chevrolet suburban, 50k? or 150k? mi, diesel 1998 BMW 740il, 120k mi (for sale) 1999 Honda CBR900RR, 42k 1997 Jeep Wrangler Sport, 103k miles (sold)
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#3
12-05-2007, 10:59 PM
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Yah, I could do the same if I took out the radio to get to the constant voltage wire, I gota figure how to get to where that comes from if I can
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car"
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#4
12-05-2007, 11:28 PM
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Did MB even do that in '77? I remember my '77 P/U that had constant power to the cig ligher only. The radio circuit did not ,since the radio was the standard mechanical push button am/fm stereo. It was neat to watch the knob and dial move with the push buttons.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 91 W124 300D Turbo replaced, Pressure W/G actuator installed. 210K 90 Dodge D250 5.9 Cummins/5 speed. 400K
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#5
12-06-2007, 01:32 AM
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Quote:
I had one of those radios in my old "67"F250, it was AM only 
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car"
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#6
12-06-2007, 10:23 AM
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I wonder what would happen if I supplied 12Vs (directly from the battery) to the one 12V supply wire to the clock. Would that feed the radio? and what will happen when the car is started? (now juice is coming from two sources) I hate these kind of experiments that could involve smoke and flames
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1985 Euro 240D 5 spd 140K 1979 240D 5 spd, 40K on engine rebuild 1994 Dodge/Cummins, 5 spd, 121K 1964 Allice Chalmers D15 tractor 2014 Kubota L3800 tractor 1964 VW bug "Lifes too short to drive a boring car"
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