Crankshaft — inspection (Mazda Capella GC)

1. Clean the crankshaft with solvent and dry it thoroughly. The lubrication holes should also be cleaned (with a stiff brush) and washed with solvent. Remove all traces of solvent with compressed air. Solvent remaining in the oil grooves can cause serious damage. Inspect the crankshaft main and connecting rod journals for uneven wear, surface wear, pitting and cracks. Check the rest of the crankshaft for cracks and damage.

2. Using a micrometer, measure the diameter of the crankshaft main and connecting rod journals and compare the results with the Specifications. The diameter should be measured at several points on the cervix to determine if it has become oval. Take a measurement at each end of the journal near the counterweights to detect any taper (photo). If you don't have a micrometer, contact a service station.

Measure the crankshaft at two points (1 and 2) and four directions (A and B) on each journal

Measure the diameter of each crankshaft journal at several points to detect taper

(For details, see the website: Mazbook.ru)

3. If the crankshaft journals are damaged, tapered, out of round or worn beyond the limits given in the Specifications, the crankshaft must be reground - consult a specialist. Remember that after resurfacing the crankshaft, it is necessary to use bearing shells of the correct size to obtain the proper operating clearance.

4. Guided by Chapter 18, inspect the main and connecting rod bearing shells for unusual wear.