McGRAW-EDISON ONAN KOMATSU 06152TA-A Valve Lash Clearance Adjusting Procedure Adjusting valve clearance 1. Remove the rocker arm housing cover. 2. Rotate the crankshaft in the normal direction. While watching the movement of the intake valve of the No. 6 cylinder, bring the No. 1 cylinder into the top dead center position of the compression stroke and align the "1.6 TOP" mark on vibration damper (1) with pointer (2). a When the No. 1 cylinder comes near the top dead center of the compression stroke, the No. 6 intake valve will start to move (open). 3. Adjust the valve clearance for valves marked q in the valve arrangement chart. 4. Rotate the crankshaft in the normal direction by one revolution and adjust the valve clearance for the remaining valves marked Q.
a To adjust the valve clearance, loosen lock nut (5) on adjustment screw (4), insert the feeler gauge corresponding to the specified clearance between crosshead (6) and rocker arm (7), and adjust the clearance with the adjustment screw until the thickness gauge can slide lightly. Valve Lash Clearance Specifications: Intake Valve 0.43MM Exhaust Valve 0.80MM
5. After the clearance is properly adjusted, tighten the lock nut to secure the adjustment screw. 3 Lock nut: 58.8 ± 5.9 Nm {6.0 ± 0.6 kgm} 43 Ft Lbs a The engine firing order is 1 – 5 – 3 – 6 – 2 – 4. a Intake and exhaust valve clearances may be adjusted for each cylinder in the firing order by rotating the crankshaft 120° at a time in the normal direction.
McGRAW-EDISON ONAN KOMATSU 06152TA-A Diesel Generator Engine Parts Contact: Email: engineparts2@gmail.com Phone: 269 673 1638 Website: www.Diesel-Generator-Engine-Parts.com
McGRAW-EDISON ONAN KOMATSU 06152TA-A Diesel Generator Cylinder Head REF
NO
PART NO. 186-1947 186-1948
2 3 4 5 6 7
8
186-1797 186-1777 186-0743 186-0693 186-1144 186-1780 186-1803 186-1801 186-1799 186-1796 186-1779 186-1802 186-1800
QTY USED
PART
DESCRIPTION
Head Assembly, Cylinder With Valve (Includes Parts Marked *) * Less Va 1ve (Inc 1udes Parts Marked+) 4 +*Guide. Valve 2 +*Guide. Crosshead 2 +*Pin, Dowel 1 +*Plug. Expansion 12 +*Plug. Expansion Insert. Intake 2 +* Standard 2 0.25mm Oversize 2 0.50mm Oversize 0.75mm Oversize 2 2 l . 00mm Oversize Insert. Exhaust 2 +* Standard 2 0. 25mm Oversize 0.50mm Oversize 2
REF NO.
PART
QTY USED
10 11 12 13 14 15 16 17 18 19
186-1798 186-1795 186-1778 186-1729 186-0156 186-1873 186-1874 186-1875 186-1876 186-1878 186-1877 186-1770 186-1886
2 2 1 1 1 2 2 4
20 22 23 24 25
186-1879 186-1782 186-1781 186-1156 186-2075
6
9
NO.
PART
DESCRIPTION
0 . 75mm Oversize 1. 00mm Oversize +*Pipe +*Seal. 0-Ring +*Plug *Valve. Intake *Valve. Exhaust *Spring. Inner 4 *Spring. Outer 4 *Seat. Lower 4 *Seat. Upper 8 *Cotter 12 Crosshead Assembly (Includes Crosshead. Screw. and Nut) 2 *Sea 1 . Va 1ve - Exhaust 6 Gasket. Head 36 Bolt. Head 6 Bolt. Head 1 Gasket Kit. Head - Cylinder
* Parts included in 186-1947 Cylinder Head Assembly. + Parts included in 186-1948 Cylinder Head Assemb 1y .
•
New Head Bolt Set part number 6211-S1-1622 includes (36) 186-1781 head bolts and (6) 186-1156 head bolts
McGRAW-EDISON ONAN KOMATSU 06152TA-A Diesel Generator Engine Parts Contact: Email: engineparts2@gmail.com Phone: 269 673 1638 Website: www.Diesel-Generator-Engine-Parts.com
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McGRAW-EDISON ONAN KOMATSU 06152TA-A Diesel Generator Fuel Nozzle, Rocker Arm, Cover And Housing
•
•
REF NO.
PART NO.
QTY
1 2 3
186-1787 186-0692 186-1788 186-1790 186-1938 186-1704 186-1413 186-1940 186-1705 186-1881
6 18 6 6 17 18 1 6 6 6
10
11
186-1882 186-1883 186-1884
1 6
12 13 14 15 16 17
186-1885 186-2071 186-1883 186-1166 186-1170 186-1880
1 1 1 12 12 6
19 20
186-1939 186-1786
12 1
4
5
6 7 8 9
PART DESCRIPTION
USED
1
NO.
REF
PART NO
QTY
21 22 23
186-0860 186-0145 186-2019
6 12 6
24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
186-2020 186-2021 186-1702 186-1924 186-1727 186-1789 186-1923 186-1684 186-1922 186-2015 186-2046 186-1745 186-0144 186-1930 186-1793 186· 1794 186-1672 186-1791 186·1792
1 1 1 6 12 6 6 6 6 1 1 6 15 1 6 6 18 18 18
Housing, Arm - Rocker Plug, Expansion Seal, 0-Ring Gasket Bolt Washer Bolt Bolt
Washer
Arm Assemb 1y, Intake (Includes Arm, and Bushing) Arm. Intake Bushing Arm Assembly. Exhaust (Includes Arm, R i v e t , and Bushing) Arm. Exhaust Rivet, Crossed Bushing
Screw
Nut Shaft Assembly, Arm - Rocker (Includes Shaft. and B a l l ) Bolt Tube, A i r
USED
PART DESCRIPTION Bolt, J o i n t Gasket Injector Assembly, Nozzle (Includes Nozzle, Connector. and Nut) Nozzle Connector Nut Gasket Seal, 0-Ring Seal, O-Ring Holder Bolt Washer Tube Tube Bolt. J o i n t Gasket Bolt, Joint Cover, Housing - Rocker Arm Gasket Bolt Washer Rubber
McGRAW-EDISON ONAN KOMATSU 06152TA-A Diesel Generator Engine Parts contact: Email: engineparts2@gmail.com Phone: 269 673 1638 Website: www.Diesel-Generator-Engine-Parts.com
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