Jerking (ruckeln?) W114 250 CE caused by distributor radial play?

Marinus wrote:

...
So first impression all within spec.
...

I agree

Regards
Norbert

Hi Norbert,

Today i measured again:
Equus 590518: 35 degrees @idle, 34 degrees @3000 rpm 
Fluke:               36 degrees. @idle, 37 degress @3000 rpm 

1  tool measuring that the value is going down the other tool value is going up, why i have no clue.

Anyway for both tool measured data is within spec.


What about the small capacitor (kondensator) inside the distributor. I measured 190 nF (static measurement with the contact breaker disconnected). Could this part causing troubles? Also the primairy circuit showing factor 2 deviations in voltage between 2 spikes.?

Greetings in advance, Marc.
 

Hi Marc,

I do not trust your measuring equipment. I would go to someone with a real ignition oscilloscope as Christian uses during our workshops.

Hello Marc,
the capacitor looks new.... and new items are often reported as being of bad quality.
I can"t say anything about that. In 55 years of working on motorcycles, cars and other engines, I have never had to replace a capacitor because it was defective.

There are other causes of the differences in the ignition voltage possible besides the distributor, breaker, capacitor and the ignition coil.

Other possible reasons could be:
rotor, cap, cables, spark plugs. And differences in the compression and injection (rich / lean).

I think, you have to find out if the 'low voltages' are related to one or more cylinders or occur 'by chance'.

Regards
Norbert