spark plug wire replacement 1994 s/420
 

hello,, every one ;; can any one help me out with this i change my cam oil seals and was pretty sucseful,,, but i got the spark plug wires screw up,,, do any have any diagram of the wire routing ..the fireing orderis 15486372 .. but idont,, know whicth,way the wire go back to the dist/cap and the direction ,,,, any help will be very much helpful meldwyer 1994 s/420

Right distributor fires 1-4-6-7, left distributor fires 5-8-3-2. These numbers should be emobssed in the distributor caps. I don't remember which bank is 1-2-3-4 and which bank is 5-6-7-8 but the bank that's slightly forward of the other bank is the 1-2-3-4 bank. I think the right bank is slightly forward of the left bank but double check.

Sixto
95 S420
87 300SDL

Mel, here's the firing order along with . . . .
 

engine layout.

Firing order: 1 5 4 8 6 3 7 2
------------------------------
4 O O 8
3 O O 7
2 O O 6
1 O O 5

Engine as viewed from front of car
No 1 cyclinder is on the LEFT side of the engine and it's the first one when viewed from the front.

The distributor caps are marked for each cyclinder but only 'generically'; not with the actual wires that go to each spark plug.

JimF - your info is normally impeccable - but I think your engine layout here is backwards on the driver's side. In other words I think cylinder 5 is opposite 1 and cylinder 8 is opposite 4, like so:

4 8
3 7
2 6
1 5
front

Anyway I changed my spark plug wires today and that's what I concluded, and the car started right up. Just thought I'd post this for posteritys sake.

Wow, that's what's . . .
 

called a "senior moment"! I've corrected it. Thanks again. . .