Crank & Rod Bearings

Hi,

Checked my bearings out tonight, and wondering wether to replace or not, the crank bearings have light scratches on some can be felt with my finger nail:







Ive ordered some plastigauge to measure clearances, but can I get away with reusing these or not?

I priced them up at nissan today:

Bearing crank - 12207-54C00- x 2   Type 0                       £13.64

Bearing crank - 12207-54C01- x 3    Type 1                      £13.64

Con rod bearing - 12111-54C01-  x 4    Type 1                  £7.97

Ring set piston - 12033-54J00-         part number not recognised  <------ doh forgot to give him the alt. number, should get a price on that tomorrow!

The rod bearings arnt that bad, but bneed to check clearances:









The cap bearings are pretty much the same as the rod.

I read somewhere that the Rod bearings need to be ordered in 2's as the part number is only for one half? is this correct?

When I reconditioned the wifes 1.0L Yaris engine a few years back, the crank bearings had to be replaced due to the gouges and ribbed for extra pleasure bearing surface:



Thankfully mine arn't that bad!

Gaz

I would replace all shells. want check journals for light marks as expect may want a super light polish.
What are your piston ringland/skirts like & bore clearance/roundness like .

I'm measuring them on Friday when I get 5 minutes. The pistons are really clean, rings move freely, very little carbon buildup, but will see if the gaps are still in spec.

I did a compression test before I started to strip the car down, all readings were the same around 170 iirc.

Piston ring part numbers been superseded to:

12033-53j20 - £156.20