how to balance an engine?

[Andreas]

as the topic says: how do i balance a 13B-REW build by myself?

all parts are from 3 engines and i took the best parts and now i want it balanced but i don\'t have a clue how that takes place/ anyone any info on balancing?

[antnicuk]

just make sure you check every tollerance and make sure thay are within mazdas specification, also check the letters on your rotors to make sure they are the same or only one different.  Make sure you have matching end weights etc and you should be ok.