Cylinder Block and Bore

CYLINDER BLOCK AND BORE
CLEANING AND INSPECTION
1. Clean cylinder block thoroughly and check all core hole plugs for evidence of leaking.
2. If new core plugs are installed, refer to Cylinder Block Assembly, Expansion/Freeze Plugs, Service and Repair.
3. Examine block for cracks or fractures.
4. Inspect for damaged bolt threads. Repair threads as needed. Refer to Service Procedures, Repair of Damaged or Worn Threads.

NOTE: Refer to Service Procedures, Honing Cylinder Bores.

5. After a cylinder honing or deglazing procedure:
a. Clean bores with soap and water solution.
b. Thoroughly rinse cylinder bores with clean water to remove soap/water solution and wipe bores dry with a clean lint-free cloth.
c. Oil the bores after cleaning to prevent rusting.

CYLINDER BORE INSPECTION





Fig. 117

The cylinder walls should be checked for out-of-round and taper with Tool C-119 as shown in (Fig. 117).
Measure the cylinder bore at three levels in directions A and B (Fig. 117). Top measurement should be 12 mm (0.60 inch) down and bottom measurement should be 12 mm (0.50 inch) up from bottom of bore. Refer to Cylinder Block Assembly, Specifications.

NOTE: There are no service procedures to bore the cylinder bores for installation of oversized pistons.