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#1
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How to "jump" 240D?
Back to "Diesel 101"
What procedure would you follow to jump start an '83 240D? Bitter, rotten cold. Battery too low to really crank, but glow plugs come on. Your advice, please |
#2
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Just guessing
My best guess is that you would jump a 240 or any other diesel like you would any other car. It may require a longer hookup/charge time with the other vehicle's engine spinning at 2 to2.5 k rpm.
But what really is the difference? All you're doing is getting enough electricity to the system to glow the plugs and crank the motor. Hook up the jumpers as normal. I may be wrong. (but it will only be the third time since my divorce.) thebern
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1982 240D 313,000 (4 speed) 1984 300CD 172,483 1985 German Shepherd Dog -Lacey- R.I.P.11/04/05 Hood Stars, Wrist Crowns and Obsession Dobs |
#3
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I would get someone with the biggest diesel engine you could find, or at least a small block v8/large truck engine. Reason:
Their alternators and batts are big. No whimp jumper cables here. If you know someone with ought-gauge cables, find them. Jump as normal, slave vehicle running at high idle. You might want to leave the connections mated for a few minutes before trying to actually crank. Remember not to direct-connect the terminals. I watched a guy do this once - he owes his sight to the eyewash kit the state requires in EMS vehicles. The battery had an internal resistance problem and it boiled and burst when he connected the terminals. Big batts can do this and still have enough healthy cells to start your car - but I admit this is unusual. If he'd connected to the chassis, it may have been just as bad, but I bet not. You're also away from the battery when you make the connect Not like there's not enough bare iron under our hoods, folks. |
#4
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I once used two cars to jump a diesel. So you could just keep adding cars till it starts
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#5
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No reason to go nuts revving the engine on the donor vehicle. Alternators do not increase their output with engine speed the way the old generators did.
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#6
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Quite so, but you will apply load to the engine, so best to have a high idle. I've actually had a few die cranking my old 300TD.
Hehe. |
#7
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remove the battery , take it inside where it is warm, put it on a charger.
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g-wagen |
#8
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Once you get the car started and battery charge, try adding a battery heater so the battery won't get weak the next time you try starting when cold.
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#9
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When we changed the belts on the 240D, we ended up taking the alternator off [stripped bolt, long story]. My dad forgot to plug it back in when he put it back on. He was out diving and the car died in a Wal-Mart parking lot. Tried jumping it from a Bronco II. Hahaha, the battery was about half the size of the 240's. I had to bring out our V-10 Excursion to get enough juice to jump the thing.
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#10
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If you get a battery heater, get the kind that wraps around the battery, not the pads that sit underneath. The wrap-arounds don't work as well, but the pads can short out, esp with our big batts on them for extended periods of time.
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#11
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Take the battery out of your car, and place the donor battery in it's place. This seems to work most of the time as long as the battery is big enough. If it is really cold and the oil is thick, I have the largest pot of boiling water under the oil pan and waited 20 minutes for the oil to warm up. It is always better to let the glow plugs do their work as long as possible, up to 1 minute before trying to crank the engine. The glow plugs are a small drain compared to the starter.
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63 190d (sold) 69 220D (sold) 69 280SL (sold) 76 BMW 2002 (sold) 86 190E-16v (Demised at Laguna Seca Turn 9) 87 300SDL (sold) 87 300SDL 135k 87 300TD 280k (sold) 95 E320W 211k 95 E320w 111k 05 C320 4matic 06 E320 CDI 90k (Totaled by a texting 19 year old girl in a nissan) 2013 GLK 250 Bluetek 4MATIC |
#12
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jump start
I have a 76 240D, put new belts on and went shopping with the wife. Came out to start the car and it was dead. I forgot to reconnect the alternator. My daughter was out in her Bronco II came over to jump the diesel and it wouldnt work. Called my son to come over with my Excursion with a V10. Took a couple minutes, but the diesel turned over and ran fine. Jump the car like any other but you do need A LOT of power from the jump battery.
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'05 Ford Escape 100,000 miles '87 560SL 92000 miles '89 300TE 199,000 miles '02 Audi TT 100,000 miles '00 Ford Excursion V-10 121000 miles '92 Mercury Capri 100000 miles '02 BMW 325XI 60000 miles '92 230CE 160000 '87 BMW 535SI 160,000 miles '93 Rinker Captiva 209 5 Kids 2 Dogs 1 Wife |
#13
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One of the main problems is the small area of contact by the jumper clamps... compared to the surface area of regular clamps...
Using the donor battery in the car to start it is very good but obviously more work... |
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