i went to honda to get bearings for a stock b16a crank and b16a rods, im not to sure of what kind i need, so i went there and asked them for a b16a si motor 1.6 , rod and main crank bearings and they told me i need to know the color ?? can someone point me in the right direction or what i need exactly ,thanks for any help, and yes im looking for a helms

 

you will have to look at the color of the bearings in your stock crank and rods, b4 you order the new ones

 

www.helminc.com

 

If you don't know what they are talking about you should consider getting someone to assemble your motor for you.

 

there are no bearings to look at its a block and crank and rods in pieces

 

i must be tonight which one do i get

http://www.helminc.com/helm/Result.a...F4H9HLWJD09046

 

Get a helms manual and someone who has spec'd out bearings before help you with the ordering.

 

pmed

 

MAIN:
Letters are on the block, numbers are on the crank, put the two together to get color code
ROD:
Letters are on the crank, numbers are on the rods, same process as above


Blue .0594-.0593
Black .0593-.0592
Brown .0592-.0591
Green .0591-.0590
Yellow .0590-.0589
Pink .0589-.0587
Red .0587-.0586


BC = IDBT – ODC – (2 x BT)

BC = bearing clearance
IDBT = inside diameter of bearing tunnel (housing bore)
ODC = outside diameter of crank journal
BT = bearing thickness

Main Bearing thickness by color
Blue 2.013-2.010 mm 0.0793”- 0.0791”
Black 2.010-2.007 mm 0.0791”- 0.0790”
Brown 2.007-2.004 mm 0.0790”- 0.0789”
Green 2.004-2.001 mm 0.0789”- 0.0788”
Yellow 2.001-1.998 mm 0.0788”- 0.0787”
Pink 1.998-1.995 mm 0.0787”- 0.0785”
Red 1.995-1.992 mm 0.0785”- 0.0783”

Rod bearing thickness by color
Blue 1.510-1.507 mm 0.0594”- 0.0593”
Black 1.507-1.504 mm 0.0593”- 0.0592”
Brown 1.504-1.501 mm 0.0592”- 0.0591”
Green 1.501-1.498 mm 0.0591”- 0.0590”
Yellow 1.498-1.495 mm 0.0590”- 0.0589”
Pink 1.495-1.492 mm 0.0589”- 0.0587”
Red 1.492-1.489 mm 0.0587”- 0.0586”

Although most people do not have inside micrometers, bearing micrometers or snap gauges,
you can still use this chart when using plastigage to check bearing clearance.
If you want to increase or decrease a bearing clearance, you can calculate how much
of a color change is necessary by looking at the changes on the chart. Remember you can
mix colors for even a more fine-tuning but it would not be wise to jump more than one color.
In other words, do not mix a brown and yellow bearing together to equal a green clearance
value. Just use the greens together. It is ok to mix a green with a yellow or a green with a
brown. When doing your rebuild and replacing bearings with like colors, you still must check
your results with plastigage to be sure. Don’t assume anything. Also remember, when swapping
to aftermarket rods, throw the color codes away as they will not work anymore. You need to
start from scratch to obtain your desired clearance. On the other hand, you really cannot
measure accurately to the nearest .0001” without machinist quality tools, so don’t get carried away
on that last one ten thousandth of an inch variance.

 

have kj do yours, he just finished with mine