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Komatsu TB45 - Engine Performance and Belt Data

Komatsu TB45
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EG-23
SERVICE DATA
Standard, Repair Limit
Fuel in use Gasoline specification Lead-free regular gasoline with an octane value of 91 or more
LPG specification 20-100P
Engine weight (without water, with oil) kg (lb) Approx. GAS, LPG:301’, DUAL:302’
Firing order 1 - 5 - 3 - 6 - 2 - 4
Compression pressure
kPa (bar, kgf/cm
2
, psi)/rpm
Standard 1,187 (11.87, 12.1, 172)/200
Repair limit 892 (8.92, 9.1, 129)/200
Difference limit among cylinders 98 (0.98, 1.0, 14)/200
Distortion limit mm (in) Intake manifold 0.2 (0.008)
0.3 (0.012)
Exhaust manifold
Cylinder head 0.2 (0.008)
Cylinder block 0.1 (0.004)
Engine oil amount l (Imp qt)
(SL class)
When replacing oil only Approx. 8.3 (7-1/4)
When replacing oil and filter Approx. 8.6 (6-5/8)
Spark plug Manufacturer/type/gap mm (in) NGK/BPR4ES-D/0.8 - 0.9 (0.031 - 0.035)
Resistance on high-tension cable (k:) #1: Approx. 2.7 #2: Approx. 2.8 #3: Approx. 4
#4: Approx. 5 #5: Approx. 5.2 #6: Approx. 6.1
Ignition advance device Electronically controlled ignition advance
Onboard idle speed (rpm) 750 r 50
Onboard idling pace speed (When feedback control is stopped) (rpm) 750
Density of CO at idle speed/Density of HC at idle speed (%/ppm) 0.1 or less/50 or less
Ignition timing (When feedback control is stopped) (BTDCq/rpm) 10 r 2/750
Valve clearance mm (in) INT/EXH Hot 0.35 (0.0138)/0.35 (0.0138)
Thermostat opening valve temperature (Start - Full open) qC (qF) 82 - 95 (180 - 203)
Engine drive belt deflection New belt After adjustment Limit
[Measured by pressing
with 98 N (10 kg, 22 lb)] mm (in)
Alternator belt/Fan belt 10 - 12
(0.39 - 0.47)
13 - 15
(0.51 - 0.59)
16 (0.63)
EGM0098

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