Background Image
Table of Contents Table of Contents
Previous Page  933 / 1588 Next Page
Information
Show Menu
Previous Page 933 / 1588 Next Page
Page Background

46

ENGINE2.2LDICOR

Fig. 98

l

If necessary, straighten connecting rod in cold

condition. Since a slight clearance exists between

connecting rod bolts and corresponding

connecting rod bearing cap holes, it is possible

that connecting rod bearing cap once removed

may be installed off center, by which dimension

of connecting rod big end parent bore will be

different in different directions. If there is a

difference noticed in connecting rod big end

parent bore dimension, connecting rod bearing

cap can be centralized by lightly tapping it with

mallet in required direction after slightly loosening

connecting rod bearing cap mounting nuts.

l

If one or more connecting rods are to be replaced,

ensure that difference in weight of connecting rod

in one engine is within permissible limits.

l

Install new pair of connecting rod bearing shell

according to size of crank pin journal diameter,

making sure that securing lugs of bearing shells

are properly seated in grooves of connecting rod

and its bearing cap.

NOTE

Lower and upper bearings are different and to be

fitted properly.

l

Install connecting rod bearing cap with bearing

shell on connecting rod. Tighten connecting rod

bearing cap mtg. nuts to specified torque

(Fig.100)

Fig. 99

Fig. 100

l

Check connecting rod big end parent bore

dimension. (Fig. 99)

l

If connecting rod big end parent bore is slightly

more than maximum permissible limits, it is

possible to reclaim connecting rod provided the

wear is confined only to connecting rod bearing

cap. Connecting rod bearing cap mating surface

may be slightly faced. Parent bore should then be

finished on a connecting rod boring machine.

l

ENSURETHATCONNECTINGRODBIGENDAND

SMALLENDAXESAREPARALLELTOEACHOTHER

WITHINSPECIFIEDLIMITS.CENTRETOCENTRE

DISTANCEBETWEENCONNECTINGRODSMALLEND

ANDBIGENDISMAINTAINEDWITHINSPECIFIED

LIMITS.