Quote:
Originally Posted by RBYCC
Not sure why you would go through this effort as the non resistor plugs are still available. May cost a few dollars but you are assured of quality.
The fallacy in your modification is that you may read 0 ohms using the less then 9VDC provided by the multimeter.
you can use any type of metal, but all metals are not equally conductive.
Copper is the most common in non resistor plugs as the NGK BP5EFS, but the best conductor would be silver as in the hard to find Beru/Nology S1K Silverstone plugs
Impress a service voltage of 35KV + and you may find even the slightest gap between conductors can create an internal arc which will degrade the plug.
You can't compare a solid top to bottom electrode with the pieced together electrode you are creating.
Ed A.
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This is a good point, I did not think about the degrading of the plug internally, but wouldn't also apply to the resistor as well? It is not a solid conductor and it too would be able to have a gap in between. On another note, the plug does have an internal spring which would make sure that there remains a solid connection between the conductors. I will pull the plugs in a few months to check the integrity of the components. Also, I do not understand what you mean about the fallacy in the modification using < 9VDC.
Quote:
Originally Posted by pawoSD
When I last needed plugs I too was able to source NGK non resistor's for my 420sel without a problem, only a few dollars each at O'reilley's.
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I have tried oreilly's, as a matter of fact I was on the phone with them today and they said they do not stock them, nor does pep boys, nor does autozone. They all cross referenced to a resistor. My location is Palm Springs and there are plenty of older and newer model MBs on the road. When I go to the junk yard I usually make it a habit to go and pull one of the plugs in the MBs there and I have yet to pull one where there was a non-resistor plug in it.