Just been to order some main bearings, they asked which colour i had!? i had no idea so have come back to check my old ones.

Microcat list 4 different ones:

green
brown
yellow
blue

Engine is a Focus ST170

my old bearings so seam to have a blob of what looks to be brown paint on the edge of the bearings. is this the only way to tell them apart? It has these numbers stamped on the bearings:

938M 6333 C1B

any ideas or do i just go for the brown so to speak

 

i'd say the best way would be to measure the crankshaft then give them the size, the crank may need regrinding anyway... why are you changing the shells?

 

cranks been away for a check and has come back fine. changing shells whilst engine is apart before its built up

have looked at some more and am now not sure if its a dirty yellow rather than a brown lol

they do give measurements too at :

2.148-2.141
2.145-2.138
2.140-2.133
2.135-2.128

mate has some digital vernier calipers shall i just measure the bearings and go from there?

 

yeah that wouldnt be a bad idea

 

mate was a no show with verniers. I have managed to get the chasis no. from the car the engine came from. Off to fords at dinner to collect some other bits, so will see if that will show just one bearing up!?

 

been to ford, he thought brown too. Put part number into microcat and it brought up yellow. It did this for the lower and upper bearing so yellow it was. The center bearing had no part numbers that microcat knew so went with yellow again. 10 days order from germany for most bits