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CATERPILLAR 3204
Essential Diesel Engine Bolt Tightening Torques

 

CAT 3204 Main Bearing Bolts
Step 1 = 45 ± 4 lb.ft (61 ± 6 Nm)
Step 2 = +60 degrees ± 5 degrees

CAT 3204 Connecting Rod Bolts
Step 1 = 30 ± 3 lb.ft (40 ± 4 Nm)
Step 2 = +60 degrees ± 5 degrees


Image 3204 PC Cylinder Head 3204 PC Cylinder head

CAT 3204 PC Cylinder Head Bolts
EARLIER BOLTS
(with six dash marks)
Step 1 = Tighten bolts 1 thru 18 in number sequence to: 60 ± 10 lb.ft (80 ± 14 Nm)
Step 2 = Tighten bolts 1 thru 18 in number sequence to: 95 ± 5 lb.ft (130 ± 7 Nm)
Step 3 = Again tighten bolts 1 thru 18 in number sequence to: 95 ± 5 lb.ft (130 ± 7 Nm)

ALL:
Torque for head bolts 19 thru 22(tighten in number sequence to)32 ± 5 lb.ft (43 ± 7 Nm)

CAT 3204 PC Cylinder Head Bolts
Later BOLTS
(with seven dash marks)
Step 1 = Tighten bolts 1 thru 18 in number sequence to: 60 ± 10 lb.ft (80 ± 14 Nm)
Step 2 = Tighten bolts 1 thru 18 in number sequence to: 110 ± 5 lb.ft (150 ± 7 Nm)
Step 3 = Again tighten bolts 1 thru 18 in number sequence to: 110 ± 5 lb.ft (150 ± 7 Nm)

ALL:
Torque for head bolts 19 thru 22(tighten in number sequence to)32 ± 5 lb.ft (43 ± 7 Nm)


Image 3204 DI Cylinder Head 3204 DI Cylinder head

CAT 3204 DI Cylinder Head
Step 1 = Tighten bolts 1 thru 18 in number sequence to:60 ± 10 lb.ft (80 ± 14 Nm)

Step 2 = Tighten bolts 1 thru 18 in number sequence to: 110 ± 5 lb.ft (150 ± 7 Nm)

Step 3 = Again tighten bolts 1 thru 18 in number sequence to: 110 ± 5 lb.ft (150 ± 7 Nm)

ALL:
Torque for head bolts 19 thru 22(tighten in number sequence to)32 ± 5 lb.ft (43 ± 7 Nm)



CATERPILLAR 3204 Diesel Engine Specs

 

CAT 3204 Displacement, bore and stroke

Displacement
5.2 liter, 318 CID

Bore
4.5 in, 114.3 mm

Stroke
5.0 in, 127 mm

CAT 3204 Arrangement
4 cylinder in-line
natural aspirated and
turbo models

CAT 3204 Power
3204 NA
80 kW, 105 hp @ 2800 rpm

3204T
120 kW, 160 hp @ 2800 rpm



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