SAFARI

ENGINE2.2LDICOR

Install piston rings in their respective position on

piston using ring expander (Fig. 107).

Stagger piston rings gaps such that they are 120°

apart (with butt gap not in line with piston pin)

Fig. 107

CRANKSHAFT

Clean and carry out visual inspection of crank shaft for

Following

Overheating of journals, which is indicated by

bluish brown colour

Scoring marks on journals

Cracks, which should be checked on magnetic

crack detector

Check crank shaft run out by supporting it on V-

block at 1st and 5th main bearing journals (Fig.

108)

If run out exceeds permissible limits, straighten

crank shaft in cold condition on press carefully.

Similarly check lateral and radial run outs of

flywheel mounting flange.

Check crank shaft main bearing and crank pin

journal dimension.

Record the readings in the format given at the end

of this group. (Engine Inspection Sheets).

If necessary, grind crank shaft main bearing and crank

pin journals to next under-size.

MAINTAINCORRECTFILLETRADIUSFORJOURNALS

Care must be taken during grinding to ensure that

width of journals is not increased.

Should it be necessary to grind sides of 4th main

bearing journal, grind it to next under size.

Re-chamfer oil holes on journals to avoid scoring

of new bearing shells.

Fig. 108