| 1. Clear connecting rods and their nests. The working gap can be checked by two methods. |
|
2. One of methods (which assumes existence of a micrometer for measurement of diameter of openings) consists in establishing covers of conrod bearings together with an insert on a rod and to screw them the required moment. At installation of an insert in a rod the ledge on an insert (shooter) has to be established in a groove on a rod. |
| 3. Measure the internal diameter of each collected couple of inserts of the bearing. Measure diameter of each conrod neck of the crankshaft. Subtract the corresponding diameter of a conrod neck of the crankshaft from the measured diameter of the bearing. |
| 4. The second (and more exact method) consists in using the product known as Plastigage. It is a round plastic core which contracts between an insert and a neck of the crankshaft. After removal of a cover of the conrod bearing the deformed plastic core is measured by a special template which is available in Plastigage set. The procedure for Plastigage use following. |
| 5. Establish a rod with an insert on the corresponding neck of the crankshaft. Necks of the crankshaft and inserts have to be absolutely pure and dry. |
| 6. Cut off a piece of a plastic core of Plastigage (it has to be slightly shorter, than width of conrod bearings) and establish it on the measured crankshaft neck. |
| 7. Establish conrod covers with the lower inserts and tighten fastening bolts the required moment. In the course of measurement of a gap by Plastigage method do not rotate the crankshaft. |
| 8. Unscrew a conrod cover of fastening of an insert, remove it and apply the large-scale ruler printed on packing to the deformed plastic core. Comparing width of the deformed plastic core to control width on a large-scale ruler, determine gap size. |
| 9. In conclusion carefully clear traces of Plastigage of material from inserts and the crankshaft. |
