need help-torque specs on 2002 4.3 mercruiser

[Caravelle3708]

Does anyone know the torque specs for a 2002 mercruiser 4.3l motor. I am needing specs for the roller rockers, heads, exhaust manifold, and valve covers. Also, any special order when tightening down head bolts vs regular heads in a vehicle? Thanks

 

[Bt Doctur]

Re: need help-torque specs on 2002 4.3 mercruiser

bolt pattern sequence is very important, should be a manual to download in the adults section .Is this a balance shaft motor?

 

[Caravelle3708]

Re: need help-torque specs on 2002 4.3 mercruiser

I do not know if it is balance shaft or not. It is just a 4.3L mercruiser out of a 2002 caravelle f/s. It has an alpha 1 outdrive. I checked the manuals in adults only and found service manual only not for actual motor specs. Thanks

 

[Fun Times]

Re: need help-torque specs on 2002 4.3 mercruiser

Look in here and see if you engine model and serial numbers match up before using any info in this service manual to be safe. Good luck with it.http://www.boatfix.com/merc/Servmanl/18/18covr2.pdf

 

[Don S]

Re: need help-torque specs on 2002 4.3 mercruiser

Yes, a 2000 motor is a balance shaft motor, you need manual #25 from the adults only sticky. Section 3 of the manual covers the engine.
You are also going to need torque specs for other things as well.
You will need to use the angle torque method for that engine.