Originally posted by btrautman:
I'd almost say that if you feel you need to change the rod bearings, you should also change the main which would require pulling the motor. I'm not sure what you gain by doing this...........

Bob





I completely disagree.
Even high mileage 2.5L engines don't have main bearing issues. The mains on every engine I've messed with have been fine.

If his engine is in otherwise good shape and he just wants a better bearing material, then this is a good idea and not too hard.

The bearing caps are cracked powder-metal. They will only go back together one way. You shouldn't be able to see any seam when you put them back together. They will look like there is no crack at all. That is when you know they are on right.
You have to take out all the plugs, pull the y-pipe and the oil pan. They you just turn the engine around one rotation at a time until the rod you want to change comes down within easy reach.
The parts that are important are changing out the bolts and installing the bearings correctly with some pre-lube. In an already oiled engine I'd just use some more oil to lube them and install the caps.

Not a beginner task, but it could be if you take your time and are somewhat handy with things.
This all assumes you find everything all right when you open the pan too.


Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black