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Deez Nutz
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15,679 Posts
Discussion Starter · #1 · (Edited)
The have the firing order incorrect for C900's. Ugh, how annoying.

If you are facing the car, it's this way:

1--2
3--4


not this way:

4--3
2--1
 

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3,384 Posts
Head scratch... I think you have the order right, but isn't the #1 the upper left node on the cap? Now I have to go out and have a look.

1--4
3--2

Edit: Baah or is it

1--3
2--4

I just did this the other day and now I can't recall. I think it's cast in the intake or the head somewhere too.
 

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Moderator
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10,303 Posts
Youtube yourself explaining this and mash up the sesame st. 1,2,3,4,5,6,7,8,9,10,11,12 song and just repeat the firing order.
 

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1,123 Posts
Yup I ran into this problem a few weeks back. I did the trial and error method switching out the wires I swear I tried about 8 different combinations until it started. Then I scratched out what Bentley had and penned in the right order. I should really mark up the dizzy cap to leave no uncertainty.
 

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You guys didn't have it memorized already?* What kind of C900 drivers are you?*
 

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1342, it is stamped on the valve cover. Easy to find which electrode spot on the dizzy is '1' by having the motor at TDC with the dizzy cap off then lining it up correctly.

Just a tip in case there is no internet handy.
 

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i actully have this straighened out in mine,, but for some reason (dont quote) i think pre 87 dizzys match the diagram, since the cap fits on differently
 

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Hahaha. Ahhhhhh this has happened to me. I crossed it out in my Bentley.
 
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