slamigo

Hey all,

After looking in the FSM, I notice that there are 3 different sizes for "standard" main bearings. I was doing the head gasket on my 22RE and after I removed the oil pan I found a lot of debris in there, so I decided to replace all the bearings (rod, main and thrust washers). I just ordered standard sized ones and threw them on. The parts place I dealt with didn't have different sizes for standard size bearings. I notice that none of the online stores that sell main bearings for the 22RE have different sizes for standard either. What gives?
I'm now worried that I just installed the incorrect size bearing in my rig and I'm not shelling out big bucks to get some from the dealership.
I didn't bother with the plastigauge because that's mainly used to see if your bearings are in spec to make a decision on whether or not to replace them. Since I was replacing them, I figured what's the point in checking brand new ones? I also didn't want to have a mess of plastigauge to clean up off the crank shaft.

maxpower_hd

There should only be one standard size bearing. Anything else would be undersized to accomadate the metal removed from resurfacing a lesst than perfect crank. The clearences really should be checked as well to determine if the crank needs to be resurfaced or ground. The machinst can then tell you which size you need.

If you just throw in bearings and the crank indeed needed work, you could have issues. If the crank was in good shape and you happen to have the right size bearings in there then you might be ok.

I use plastigauge to check the clearences in my bearings during installation to be sure there are within tolerance. Even if the crank was ground by a machinist. They screw up sometimes too.

slamigo

meh, this is just my winter beater truck. I guess I'll check the bearings with plastigauge, hopefully, they are within spec.
If the bearings are slightly off, they'll just wear quicker right?