Originally posted by bnoon:
Originally posted by DemonSVT:
Originally posted by ssmumich00:
1. Filing rings?
2. They balance AFTER they assemble the short block, correct? So then, how do you drive it to another shop if the engine is "unbalanced"?
1. The rings that come with the custom pistons require a file fit.
2. They would have to bring the "assembled" rotating assembly (including clutch, PP, and crank pulley) over to this other machine shop to have them balance it.
Most of the balance work I've ever had done they use only the crank, one piston/rod assembly including rings. Unless it's an externally balanced flywheel or damper, that's all they need, not even the block...
Also, make sure the top ring is on the loose side when they're file fit on it, otherwise the heat and pressure from the "hair dryer" will cause the top ring to expand to much for it's own good. That equals more money spent...
It has been many years since I had any balancing done, but matching the pistons for equal weight was the first part of the balancing project. Usually the rings were left alone since they felt that there would not be enough difference to worry about. But they did match the pistons and rods before actually assembling the pistons and rods together. The wrist pins were weighed with the pistons.
Jim Johnson
98 SVT
03 Escape Limited
| 
