2. When measuring new rings, arrange all piston/rod sets according to their location in the engine.
3. If the gap of the new ring is too large or too small, double check that the rings are of the correct size class. If the gap is still too small, it can be increased with a file; and if the gap is too large, then it is necessary to carefully check the dimensions of all components and new parts.
4. After checking the rings, you can install them; make sure that each ring is installed only in the correct groove of the corresponding piston.
5. Install new rings through the piston head, starting with the oil scraper ring spring. Position the cuts in the spring and oil scraper ring parts as shown in Fig. 2B.7.
6. Install the upper and second compression rings behind the oil scraper ring. The second ring can be distinguished from the upper ring by its tapered outer surface. Note that both compression rings must be installed with the manufacturer's marking facing up (see Fig. 2B.8).