2003 3.0 Mercruiser Intake and Exhaust Valves

[WV Boater]

Hello all. In need of a little help. Just changed my head gasket and ready to adjust the valves. Wondering if anyone knows which ones are intake and which ones are exhaust?

 

[Bondo]

Re: 2003 3.0 Mercruiser Intake and Exhaust Valves

Ayuh,.... Welcome Aboard,.... E-II-EE-II-E....

 

[WV Boater]

Re: 2003 3.0 Mercruiser Intake and Exhaust Valves

Ayuh,.... Welcome Aboard,.... E-II-EE-II-E....

Thanks Bond-o. Is this for all 3.0s? Or is there another arrangement for other years of the 3.0?

 

[Bondo]

Re: 2003 3.0 Mercruiser Intake and Exhaust Valves

Thanks Bond-o. Is this for all 3.0s? Or is there another arrangement for other years of the 3.0?

Ayuh,... It's pretty much most motors with 4 cylinders in a row,...

 

[fishrdan]

Re: 2003 3.0 Mercruiser Intake and Exhaust Valves

is there another arrangement for other years of the 3.0?

Some of the heads have different port configurations, but they all have the same valve placement (as Bond-o listed).

What procedure are you using to set the valves, from the Mercruiser manual?

 

[WV Boater]

Re: 2003 3.0 Mercruiser Intake and Exhaust Valves

Some of the heads have different port configurations, but they all have the same valve placement (as Bond-o listed).

What procedure are you using to set the valves, from the Mercruiser manual?

Thanks. Yes, I plan on doing the valve adjustment with engine not running. I have Service Manual Number 26.

 

[Bt Doctur]

Re: 2003 3.0 Mercruiser Intake and Exhaust Valves

I preferr the engine not running method but slightly different. I let an intake valve open and close, now that cyl is on compression stroke and adjust both pushrods .Thighten untill you cannot spin the pushrod and go 3/4 turn more. move to the next cyl intake valve and do it again, rotate untill intake opens and closes and adjust both pushrods, etc, etc.

 

[achris]

Re: 2003 3.0 Mercruiser Intake and Exhaust Valves

Ayuh,.... Welcome Aboard,.... E-II-EE-II-E....

Hey Bond-o, you sound like a donkey... :lol: