420SEL, cylinders,plugs, distributor - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 03-07-2009, 12:05 PM Thread Starter
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420SEL, cylinders,plugs, distributor

Can anyone help me with these questions?

1. What is the order of cylinders in my 1986-420SEL? Is #1 the one on the passenger side at the front of the car, does it go until #4 at that side and then start with #5 on the front of the driver’s side?
2. The manual says that it takes Bosch W8DC plugs; now it has Bosch W9DC; are they ok?
3. Which ones are the hotter ones?
4. What are the gaps for either kind? The dealer told me different gaps than I found on the web, 0.035 vs. 0.032 while now they are gapped 0.050.
5. How do I take the distributor cap off? The wires will not come off.

Thanks for any help.
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post #2 of 2 (permalink) Old 03-08-2009, 06:33 AM
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The guys down at the W126 forum should he able to help you out. Scroll down a little bit more and find the W126 section. welcome to benzworld
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