RACINTWEEK

you dont have to get them honed as long as there is still cross-hatch and you dont change piston-rings.

miahmouse

Changing out rod bearings has never been viewed to me as precautionary, more like.... "what the hell is that noise...."

krazdracer

If the motor is broken in there won't be any cross hatching in the cylinder walls. Honing (making the cross hatching) is just so the the rings will seat properly. No it isn't a bad job to change rod bearings. oem bearings are fine for a dialy driver and i have never had any problems with aftermarket ones either. Just give yourself a good weekend and make sure to soak the bearings in either your preferd oil or assembly lube.

EvolutionBoostin

Soak them in oil? I've never done that before (none of my bearings have spun to my knowledge), what purpose does it serve? Or is it just one of those "it couldn't hurt" type of things?

EvolutionBoostin

Since we're on this subject, I got another question...for my g/f's sake.

Obviously her 210k mile old bearings make a little bit of knocking noise on colder days, but it's been that way for a year now (more then 10k miles). Do you guys think the crank is toast, or do you think some new ones can be put in without machining the crank? There's never any bearing shavings in the oil, and it's still got full oil pressure all the time. I bet that motor would go another 100k easily the way she drives if it had new bearings. I'm weary of taking the crank out to replace mains with the motor in the car, but I'm pretty sure I could do the rods without too much hassle. Is it worth it for a d15b2 w/out pulling the motor out of the car and without pulling the crank out of the motor?

kyle h.

I don't think he meant to "soak" the bearings.

you wan the side in contact with the caps to be free of oil/assembly lube.

the d16y's have problems with weak oil pumps, which stresses the already weak oiling system. rod bearing failure is a common problem in these engines.

It shouldn't really be that hard to replace them with the engine in the car, although I'm sure your arms will get tired from working under the car.

krazdracer

iv'e always "soaked" them but thats just my thing. to make sure there thuroly lubed. lol