US S50 rod bearing replacement

[5Toes]

I got this new engine and it checks out great. Was not able to do a compression test but I am confident it would pass fine.

- no sludge
- clean oil
- cam lobes look great
- timing chain taunt

The cylinder #1 rod bearing has play. With 5 being full blown rod knock and 1 being high miles, Id rate this rod bearing play at 2.5

That said, all other cylinders check out great and have zero play. I want to replace all six rod bearings.

I was planning on ordering Glyco rod bearing in standard size (is Glyco the goto brand?) and new rod bolts. I want to use plasti-gauge to make sure the clearances are within spec.

Any tips on how to go about this? I am pulling the bearings off this weekend to inspect them for wear, but I am thinking the crankshaft journal is undamaged.

Happy holidays!

[5Toes]

any tips?

[e30rapidic]

you've got the R3v way of just putting new standard bearings in there or the proper way to use a mic and take measurements. I think if you use plastigauge you will be fine, just check in more than one place on each bearing, in case they have ovaled.

[5Toes]

Due to my bank account being tapped, I am not taking the bottom end apart until I have the money to buy the new parts. I will update this thread then

I am hoping the bearing is only worn, not the crank. Only one way to find out I guess! Stay tuned!