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#16
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Quote:
I have checked spark at the coil, very good blue spark, consistant. I then checked the spark at a spark plug wire, of course it's only going to spark 1/6th as much as at the coil while cranking, it looked more gold and random. The only way I can think of that the spark would make it to the wrong cyl is if the dist cap has a serious internal problem. It's out and I'm measuring resistance values on it now but I have no idea what they're supposed to be. The cap and rotor are 1 year 4 months old. BWD brand. Spark plugs are about 2 years old, Denso non-resistor. I'd replace them now but I have to order them.
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1988 Mercedes-Benz 300E W124 M103 California Emissions/Controller |
#17
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Anyone think the distro cap is bad?
http://www.youtube.com/watch?v=_sdAtR8qXiU That's only 7kv jumping around, I think a ignition coil is far more.
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1988 Mercedes-Benz 300E W124 M103 California Emissions/Controller |
#18
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I think yr distributor cap could be bad.
Replaced that and rotor 2 mnths ago on our '91 300 E due to non-starting when cold. It solved the problem 100%. Try it.
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Free State South Africa |
#19
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After watching your no start video , i agree sounds like spark going to wrong cylinders =change that cap,also look at rotor they like to burn thru backside and ground out telltale black trace marks
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#20
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I'm pretty sure that the rotor is bad. Have a good look then you will see there's sign of leak at the rotor. Due to the leak the spark just can't get to the spark plugs.
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#21
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Well, they are both under LTT, they won't be in at OReilly's until Wednesday.
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1988 Mercedes-Benz 300E W124 M103 California Emissions/Controller |
#22
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Looks like the distro cap was the problem.
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1988 Mercedes-Benz 300E W124 M103 California Emissions/Controller |
#23
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Engine running fine?
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Eugene 10 E63 AMG 93 300te 4matic 07 BMW X3 14 Ford F-150 Fx2 |
#24
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Yep, drove it to town today, just a occasional mis at idle, probably could use new spark plugs. They're about 2 years old.
Cheap enough. ![]()
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1988 Mercedes-Benz 300E W124 M103 California Emissions/Controller |
#25
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Quit buying junk parts. That engine calls for Bosch H9DCO copper plugs. at the dealer they are $2.35 each, less at other online parts stores. Buy what is required. A Bosch distributor cap and rotor may cost a little more but will last longer with no problems.
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#26
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plunger seal
The 'pool of fuel at the bottom' could possibly indicate a leaking plunger seal or o-ring.
AD |
#27
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Quote:
The current non-resistor options are Denso T20EP-U or Bosch F8DC4, I hear there is a NGK option too, but I don't have the PN on hand.
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1988 Mercedes-Benz 300E W124 M103 California Emissions/Controller |
#28
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They are no longer made, but they can still be purchased. I buy them at peachparts, at this link:
SPECIAL ORDER BOSCH H9DCO, these are "NOT" resistor spark plugs ''ONLY AVAILABLE WHILE STOCK LASTS'',0031590403 - PeachParts They are currently $4.90 each.
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Streetside: 1987 Mercedes 300E Petrol Blue/Green 2014 Ford Mustang Grabber Blue 1999 Ford Ranger Green Dockside: 1968 Eltro 17 1985 Silverton 34C |
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