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Which one goes where

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burton

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"I need help ! I have a 1985

"I need help ! I have a 1985 merc i/o 3.0, 140 hp. ALL the plug wires got pulled at the same time, and were not marked, now I have no idea which one goes where. can someone please help?"
 
i have the same engine mine is

i have the same engine mine is wired 1 is towards the front of the boat closest to the engine and 2 is right behind it clossetto the engine towards the back of the boat and then 3 is across from 1 and 4 is actoss from 2 if that helps.
 
"I got 2 post next to motor an

"I got 2 post next to motor and 2 away, 2 wires are shorter to reach the 1 and 2 plugs but cant reach 3 or 4"
 
"put the longest one on #4 the

"put the longest one on #4 then you'll know where the rest are, #2 will be one clockwise, then continue clockwise, #1 is next, then #3"
 
"At the risk of sounding like

"At the risk of sounding like a moron, whats the easiest way to find tdc? if the order is 1,3,4,2,then should I put the longest wire to the furthest back which would be number 2 ?"
 
OK listen carefully

take th

OK listen carefully

take the dist cap off.

IGNITION KEY OFF AND OUT OF IGNITION SWITCH!!!!!!!!!!!!!!!!!

DISCONECT + BATTERY CABLE FROM BATTERY!!!!!!!!!

Remember you said "MORON" not me

Now look at the large pully ot the lower front of the engine.
there should be a pointer on the engine cover or a notch on the pully. there should be a group of numbers 0 4 8 12 etc.

You want to spin the motor over by HAND until the notch/pointer line up to ZERO!

look at the rotor and which way it points. if it is pointing towards the front of the motor then that is where plug wire 1 goes on the cap. If it is not pointing to the front continue to spin the motor over until ZERO is reached again and it will or should be pointing to the front.
then install the rest of the wires in a C'Clockwise rotaion in there firing order.


Is this something you can do? Let us know
 
"Kghost... huge help!, found t

"Kghost... huge help!, found the numbers on a little bracket with teeth, found the notch on the back side of the pully, now how the heck do you turn that pully to line up? some lil trick you may know? do I pull the belt off?( side note... all you guys have been such life safers, wish I could buy you all a round of your favorite beverage)"
 
You're almost there. Loos

You're almost there. Loosen all the plugs to make turning easy. Use a breaker bar and socket on the crankshaft pulley and turn the engine in the direction that it cranks w/starter.
 
A better was is to wedge a scr

A better was is to wedge a screwdriver in between 2 of the 4 pulley bolts and turn the engine that way
 
"YAHOO!!! finally got it figur

"YAHOO!!! finally got it figured out! THANK YOU so much for everyone's help. All you guys are incredible, and saved me a good chunk of cash. Happy boating and have a safe season."
 
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