Figure 6-9. Crankcase oil passages-schematic diagram

6-9.

Crankcase

oil

passages-schematic

diagram.

(2) Clean the main sleeve bearing halves

seal retainer (44) for damaged threads and other

with dry-cleaning solvent or mineral spirits paint

unserviceable

conditions.

thinner. Use a wooden scraper to remove sludge

(3) Inspection of main sleeve bearings.

or gum deposits from bearing grooves and oil

(a) Inspection of main sleeve bearing

surfaces

(7.1,

7.2,

7.3,

and

7.4,

holes. Do not remove the bearing location

markings made during engine disassembly.

largely

matter

judgment

and

experience.

Inspection.

The following instructions will assist in deter-

mining whether a bearing is serviceable or

(1) Castings. inspect the crankcase and

whether it should be replaced. Replace any

related parts according to instructions covering

castings in paragraph 6-3b and c.

questionable bearings.

(b) Separation of bearing metal, or signs

(2) M i s c e l a n e o u s m e t a l c o m p o n e n t s . R e f e r

of possible separation, requires that the bearing

to figure B-2 in Appendix B for parts iden-

be replaced.

tification. Inspect crankcase tie rods (79) and oil

6-15