Cylinder numbering

[cgmacll]

Hey all

I have a mercruiser MCM 4.3 Litre 262 cid engine with an alpha one stern drive s/n GM 12552422 year 11/11/02 thunderbolt ing, engine rotation is left hand cyl firing order is 165432. the question is what cylinder is number 1 and what is the numbering if you are in the boat locking at the engine. I have a seloc manuel but cant find this out i also have a seloc online acc but no luck. Thanks Chris

 

[Don S]

Re: Cylinder numbering

Firiing order is 1-6-5-4-3-2

Cyl. location
Front of engine
1-2
3-4
5-6

 

[zbnutcase]

Re: Cylinder numbering

And cyl #s are cast on the intake manifold.

 

[cgmacll]

Re: Cylinder numbering

Thanks all, this is great. I don't understand why they do not put this in the books. thanks Chris

 

[Bondo]

Re: Cylinder numbering

I don't understand why they do not put this in the books.

Ayuh,... I guess it depends on What book you're readin'...
I'm pretty Sure it's in the Factory Manuals....
Which you can find for Free in the Adults Only section of this forum...