3120781 WORM-CIRCLE DRIVE Caterpillar parts
14M
Rating:
Alternative (cross code) number:
CA3120781
312-0781
3120781
CA3120781
312-0781
3120781
Weight: 21 pounds 9 kg.
MOTOR GRADER,
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3120781 Worm-Circle (New AFTERMARKET) - G&T Engine Parts
G&T Engine Parts Fits equipment: ENGINE - MACHINE: C11; MOTOR GRADER: 14M. ENGINE - MACHINE: C11; MOTOR GRADER: 14M. || Condition: NEW AFTERMARKET || Weight: 24.09 lbs || Dimensions: 10-10-16.03 in || Use of any OEM manufacturer name is not intended to represent any relationship between the two companies, instead it indicates that we sell replacement parts that are compatible with OEM components.
G&T Engine Parts Fits equipment: ENGINE - MACHINE: C11; MOTOR GRADER: 14M. ENGINE - MACHINE: C11; MOTOR GRADER: 14M. || Condition: NEW AFTERMARKET || Weight: 24.09 lbs || Dimensions: 10-10-16.03 in || Use of any OEM manufacturer name is not intended to represent any relationship between the two companies, instead it indicates that we sell replacement parts that are compatible with OEM components.
3120781 Worm-Circle (New AFTERMARKET) - G&T Engine Parts
G&T Engine Parts Condition: NEW AFTERMARKET || Weight: 24.09 lbs || Dimensions: 10-10-16.03 in || Items are sold by part number only. Picture is for illustration purposes and the part or parts may be different in color or quantity. || Use of any OEM manufacturer name is not intended to represent any relationship between the two companies, instead it indicates that we sell replacement parts that are compatible with OEM components.
G&T Engine Parts Condition: NEW AFTERMARKET || Weight: 24.09 lbs || Dimensions: 10-10-16.03 in || Items are sold by part number only. Picture is for illustration purposes and the part or parts may be different in color or quantity. || Use of any OEM manufacturer name is not intended to represent any relationship between the two companies, instead it indicates that we sell replacement parts that are compatible with OEM components.
$242.60
22 Oct 2022
US: Florida-Parts-Z
3120781 - Worm-Circle Drive 8w8146 for Caterpillar (CAT)
FIRST PRICE PARTS
FIRST PRICE PARTS
Number on catalog scheme:
15
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Compatible equipment models: 3120781:
Information:
Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5P-7307 Engine Turning Tool 1
B FT-1322 Lever Assembly 1
C 1F-0479 Pre-Chamber Tool 1
D - LOCTITE C5-A Copper Anti-Seize - Start By:
Remove the spark plugs.
Drain the coolant from the cooling system into a suitable container for storage or disposal.
Use Tooling (A) to turn the crankshaft and release any pressure on the rocker arms.
Illustration 1 g00784581
Use Tooling (B) to remove pushrods (1).
Remove valve bridges (2).
Illustration 2 g01423451
Use Tooling (C) and a wrench to remove spark plug adapter (3).
Illustration 3 g01423453
Remove O-ring seal (4). Remove adapter gasket (5) from the spark plug adapter (3).Installation Procedure
Install spark plug adapter (3) in the reverse order of removal.
Apply lubricant on O-ring seal (4).
Apply Tooling (D) to the threads of spark plug adapter (3). Tighten spark plug adapter (3) to a torque of 95 7 N m (70 5 lb ft).
Illustration 4 g00784581
Put clean engine oil on the bridge dowels. Install valve bridges (2) in the original positions on the engine. Use the following procedure to adjust the bridges.
Put clean engine oil in the lubrication passage of the bridge.
Back off the adjustment screw. Press straight down on the top contact surface of the bridge with a force of 4.5 to 45 N (1.0 to 10 lb).
Turn the adjustment screw clockwise. An oil film in the lubrication passage of the valve bridge will move inward. The oil film indicates that the adjustment screw has engaged the valve stem.
Turn the screw for an additional 20° to 35° degrees (1/3 to 1/2 flat). The additional rotations will straighten the dowel in the guide, and compensate for the slack in the threads.
Hold the adjustment screw in this position. Tighten the locknut to a torque of 30 4 N m (22 3 lb ft).
Use Tooling (A) to ensure no pressure against pushrod (1) and the rocker arm. Use Tooling (B) to pull rocker arm away from pushrod (1). Put pushrod (1) in position under the rocker arm. If the rocker arm cannot be moved enough to put pushrod (1) in position, turn the crankshaft with Tool (A).
Adjust the valves in order to have a clearance of 0.38 0.10 mm (0.015 0.004 inch) for inlet and 1.02 0.10 mm (0.04 0.004 inch) for exhaust. Refer to Test and Adjusting, "Engine Valve Lash".
Table 1
Required Tools
Tool Part Number Part Description Qty
A 5P-7307 Engine Turning Tool 1
B FT-1322 Lever Assembly 1
C 1F-0479 Pre-Chamber Tool 1
D - LOCTITE C5-A Copper Anti-Seize - Start By:
Remove the spark plugs.
Drain the coolant from the cooling system into a suitable container for storage or disposal.
Use Tooling (A) to turn the crankshaft and release any pressure on the rocker arms.
Illustration 1 g00784581
Use Tooling (B) to remove pushrods (1).
Remove valve bridges (2).
Illustration 2 g01423451
Use Tooling (C) and a wrench to remove spark plug adapter (3).
Illustration 3 g01423453
Remove O-ring seal (4). Remove adapter gasket (5) from the spark plug adapter (3).Installation Procedure
Install spark plug adapter (3) in the reverse order of removal.
Apply lubricant on O-ring seal (4).
Apply Tooling (D) to the threads of spark plug adapter (3). Tighten spark plug adapter (3) to a torque of 95 7 N m (70 5 lb ft).
Illustration 4 g00784581
Put clean engine oil on the bridge dowels. Install valve bridges (2) in the original positions on the engine. Use the following procedure to adjust the bridges.
Put clean engine oil in the lubrication passage of the bridge.
Back off the adjustment screw. Press straight down on the top contact surface of the bridge with a force of 4.5 to 45 N (1.0 to 10 lb).
Turn the adjustment screw clockwise. An oil film in the lubrication passage of the valve bridge will move inward. The oil film indicates that the adjustment screw has engaged the valve stem.
Turn the screw for an additional 20° to 35° degrees (1/3 to 1/2 flat). The additional rotations will straighten the dowel in the guide, and compensate for the slack in the threads.
Hold the adjustment screw in this position. Tighten the locknut to a torque of 30 4 N m (22 3 lb ft).
Use Tooling (A) to ensure no pressure against pushrod (1) and the rocker arm. Use Tooling (B) to pull rocker arm away from pushrod (1). Put pushrod (1) in position under the rocker arm. If the rocker arm cannot be moved enough to put pushrod (1) in position, turn the crankshaft with Tool (A).
Adjust the valves in order to have a clearance of 0.38 0.10 mm (0.015 0.004 inch) for inlet and 1.02 0.10 mm (0.04 0.004 inch) for exhaust. Refer to Test and Adjusting, "Engine Valve Lash".
Caterpillar parts catalog:
Parts worm Caterpillar catalog:
14G, 14H, 14H NA, 14M
120K, 120K 2, 120M, 120M 2, 12H, 12K, 12M, 12M 2, 12M 3, 12M 3 AWD, 140H, 140K, 140K 2, 140M, 140M 2, 140M 3, 140M 3 AWD, 160H, 160K, 160M, 160M 2, 160M 3, 160M 3 AWD
120H, 120H ES, 120M, 12H, 12H ES, 12H NA, 12M, 135H, 140H, 140H ES, 140H NA, 140K, 140M, 160H, 160H ES, 160H NA, 160K, 160M
16G, 16H, 16H NA, 16M, 24H, 24M
14G, 14H, 14H NA, 14M
9D4202
WORM
12G, 130G, 140G, 14G, 16G
12G, 130G, 140G, 14G, 16G
120, 120B, 12E, 140, 140B
120, 120B, 12E, 140, 140B, 14E
120B, 12F, 140, 140B, 14E
120B, 12E, 140, 140B
2H6863
WORM ASSEM.
12E, 140
12E, 140
120B, 12E, 140, 140B