What is the firing order for a 97 merc mountineer v8?

1 - 3 - 7 - 2 - 6 - 5 - 4 - 8

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The engine cylinder locations are numbered :

firewall

4 - 8

3 - 7

2 - 6

1 - 5

front

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The towers on the coil packs are numbered :

( 4 - 7 ) ( 3 - 5 )

( 8 - 2 ) ( 6 - 1 )

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