Author Topic: Numbers stamped on rod caps (Read 1963 times)

burn_your_money · « **on:** September 17, 2008, 05:00:38 am »

We are rebuilding an AAZ motor and have 2 rod/piston assemblies from one engine, and 2 from another. On the rod caps, 2 are stamed "42 K3" and the other 2 are stamped 32 K5"

We used to bad bottom ends to make 1 good one, there was 4 of each number.

Are we ok to run 2 of each in the same engine?

the caveman · « **Reply #1 on:** September 17, 2008, 07:39:21 am »

i doubt they would anything like weight, probably more production dates. [i.e. 35 th week, 1995]

jtanguay · « **Reply #2 on:** September 17, 2008, 08:14:45 am »

i'd say just re-use the right rod for the right cyl. so if you take cyl 1 rod from a motor, put it into cyl 1 of the one you want to rebuild... there has to be a reason why machine shops keep everything together :wink:

mdonau · « **Reply #3 on:** September 17, 2008, 08:42:21 am »

check the weight...should be different

if you mix 2 sets of rods make them even