Piston Pin And Connecting Rod And Piston - Mitsubishi FUSO FH 1997 Service Manual

Table of Contents

PISTON, CONNECTING ROD AND CYLINDER SLEEVE

F C

" "

11-44

[Press-fitting]

• Apply engine oil to the exterior peripheral area of connecting rod

bushing 3 and the inner area of the bushing fitting ring of connecting

rod 4.

• Fit collar F, connecting rod bushing 3 and collar D in puller C in the

arrangement and direction as illustrated and mount them with nut G.

• Align oiling holes H of connecting rod bushing 3 and connecting rod 4,

and gradually press in the bushing with approximately 49 kN {11023 lbf,

5000 kgf} load.

• After press-fitting, ream connecting rod bushing 3 to make its clear-

ance with piston pin 2 conform to the standard value.

NOTE

After press-fitting bushing 3, insert piston pin 2 and make sure

that the rod moves smoothly without any excessive play.

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248

[Disassembly]

• Drift out piston pin 2 using a rod.

• When removal of piston pin 2 is difficult, warm piston 8 using a piston

heater or hot water.

02022

[Installation]

• Apply engine oil to piston pin 2 and assemble connecting rod 4 and

piston 8 in the direction as illustrated.

A : Piston mass (Mass of piston is marked)

B : Connecting rod mass mark (Alphabetical: A, B, C, D, E, F, G)

C : Mounting base of connecting rod cap

• When piston pin 2 insertion is difficult, warm piston 8 using a piston

12173

heater or hot water.

CAUTION–

• Make sure that the total mass error of all pistons 8 in one engine

is 10 g {0.35oz} or less.

• Be sure to install connecting rods 4, to be used in one engine,

that have identical mass mark B.

• Be sure that after inserting piston pin 2 the connecting rod

operates smoothly without excessive play.