spark plug routing on 3.0 merc

[bob johnson]

my gfs son replaced the distributor cap on his motor and took all the wires off and cant remember how they go back on

we have the firing order, and i assume they go 1 2 3 4 from front of the motor to the back for the cylinders #'s...but which boss is #1 on the distributor cap??

thanks

bob

 

[Dryon]

Re: spark plug routing on 3.0 merc

Here you go

 

[bob johnson]

Re: spark plug routing on 3.0 merc

thanks, how would you determine which spot on the dist cap is #1??? the one closest to the block????

seems to counter what this picture is saying......but i worry they just print stuff to be representative and not exact!!

this was from a diagram for a 3.0 merc....were they different over the years....this is an original motor in a 2008 bayliner

PS i got that diagram after I posted the question from this site....

I am trying to instruct my gfs son via phone today...i hope i dont have him hook it up wrong

http://www.perfprotech.com/store/articles/mercruiser-30L-wiring-diagram.aspx

thanks

bob

 

[Don S]

Re: spark plug routing on 3.0 merc

The picture in the wiring diagram has nothing to do with firing order or location.

 

[Bondo]

Re: spark plug routing on 3.0 merc

thanks, how would you determine which spot on the dist cap is #1??? the one closest to the block????

Ayuh,... It really don't matter which spot on the cap you start with #1, so long as the rotor is pointing to that terminal at TDC, #1...