any specs on rod and main beearings? Options

[b1gr3d]

ok i am pretty sure i am going to need new bearings BUT i do not know what size i need. what are the specs for factory crank journals and rod journals?

95 5sfe

[hurley97]

It depends on the bore and size of the journals and crankshaft. you need to take it apart first and match up the numbers on the block and the crank to get the bearing sizes.

This is from my 7A-FE rebuild but it's pretty much the same for a 5S only the numbers engraved on the crank are all in the same place and stamped sideways on one of the crankshaft balancers.

to find the size of the main bearings...


for the crankshaft...


there are 5 numbers engraved on the corner of the block (top and bottom)....


that correspond to 5 numbers engraved on the crankshaft itself...



you add the number on the crank to the corresponding number on the block.
no number means 0. so the 01 on the crank pictured combines with the 2 printed on the block to come up with a #3 bearing.

[b1gr3d]

ewwww dirty girls hands LOL j/k yeah i found all of this info here http://www.mr2-tech.com/bgb/mechanical/vol..._mechanical.htm

[Celiracer18]

hey steff does the same system go for the rods also? like all my rods have 2s on them and then theres the other 4 numbers on the other end of the block?

[hurley97]

hey steff does the same system go for the rods also? like all my rods have 2s on them and then theres the other 4 numbers on the other end of the block?

yeah, on the opposite corner of the block there should be 4 numbers engraved. So if you have the numbers 1132 (or example) on your block they correspond to your pistons, all being number 2 makes it easier, so you would need a #3 rod bearing for the piston in cyl 1, #3 in cyl 2, #5 in cyl 3, #4 in cyl 4.

This post has been edited by hurley97: Sep 9, 2008 - 6:34 PM

[b1gr3d]

oh BTW i had atleast 2 spun bearings, the crank had little VISIBLE damage but i set it to the machine shop anyways to be on the safe side, and thye will get me bearing to the specs that the grind/polish it to

[Celiracer18]

thanks steff