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Genuine Chevrolet Avalanche Rocker Arm
Engine Rocker Arm- Select Vehicle by Model
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3 Rocker Arms found
Chevrolet Avalanche Arm Assembly, Exhaust Valve Rocker
Part Number: 12681275$13.72 MSRP: $22.71You Save: $8.99 (40%)Ships in 1-3 Business Days
Chevrolet Avalanche Arm Assembly, Int Vlv Rkr
Part Number: 12696105$12.96 MSRP: $21.45You Save: $8.49 (40%)Ships in 1-2 Business Days
Chevrolet Avalanche Arm,Valve Rocker
Part Number: 12556298$25.34 MSRP: $41.96You Save: $16.62 (40%)Ships in 1-2 Business Days
Chevrolet Avalanche Rocker Arm
The Rocker Arm in Chevrolet Avalanche automobiles plays a crucial part of an automobile engine system particularly the valvetrain; which is responsible for moving the pushrod and hence the opening and closing of the intake and exhaust valves. Conventionally, made of stamped steel or aluminum, these parts translate the vertical 'pushrod' travel into the right vertical movement to open the valves. Aluminum is used where the engine is required to run at high RPM, since it is light in weight, while cast iron or forged carbon steel is used in the diesel engines since they are strong. Some styles of rocker arms are called roller rockers and consist of the contact points containing needle bearings to decrease both friction and wear. The rocker ratio that vary from 1.5:1 to 1.8:1 in modern engines increases the lift of the camshaft to improve on performance. New superior bearings are also used in the fulcrum-cum-Rocker Arm in the harness to meet the elevated stress conditions in high-RPM engines and to provide an excellent lifespan of Rocker Arm system.
Each OEM Chevrolet Avalanche Rocker Arm we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.
Chevrolet Avalanche Rocker Arm Parts Questions & Experts Answers
- Q: How do you remove the Pushrod and Rocker Arm on 4.3L V6 engine for Chevrolet Avalanche,Silverado,Suburban,Tahoe and GMC Sierra,Yukon,Yukon Denali,Yukon XL?A: You can start by removing the Rocker Arms, which will be loosened and stored in containers labeled as rocker arm support bars. Keep their different pushrods separately. If necessary, inspect each rocker arm for damage on the pivoting area and cracks or wear on the bearing surface; after that replace any defective ones, making sure roller bearings rotate freely. Look at the pushrods to see if they have cracks, are too worn out or bent. For reinstalling, lube the push rods and put them back into their original position with full seating in the lifter being noted. After that, place back the rocker arm support with arrows up and also wipe off grease from valve stems and ends of pushrods. Then fit all rocker arms one by one, lubricating roller bearings lightly and tightening the rocker arm bolts evenly according to a specified torque. Lastly, you can start your engine up and check it for oil leaks or noises from the valve train mechanism.
- Q: How to remove the Pushrod and Rocker Arm on V8 engine for Chevrolet Avalanche,Silverado,Suburban,Tahoe,GMC Sierra,Yukon,Yukon Denali and Yukon XL?A: Removing of valve covers from the Cylinder Heads is to be done by first of all removing one at a time each Rocker Arm Pivot Bolt and taking out the rocker arms, bolts and pivot support pedestal. Keep track of their positions and store them separately. Proceed by removing the pushrods, keeping them in sequence as they are. Each rocker arm has to be checked for wear, cracks, damage as well as binding and roughness of the pivot bearings during inspection. The rocker arm has to be replaced if its bearings are worn or damaged. Also examine the rocker arm pivot support pedestal for any cracks. Make sure that all the pushrods are open at the hole on each of their rocker arms' ends and check them for fractures, large amounts of wear or obstruction in oil holes. After lubricating them with clean engine oil or assembly lube, put back the push rods exactly where they came from. In order to protect the stems of valve along with pushrod ends from damage apply some engine assembly lube on them. For every rocker arm shaft as well as bearing make sure you apply clean engine oil then install loosely into original locations (where they were removed). Rotate crankshaft to TDC on compression stroke for number 1 piston then tighten intake valve rocker arms for specific cylinders. Rotate crankshaft 360 degrees then tighten intake valve rocker arms on other cylinders. At last put on valve covers start engine and listen for unusual noise coming from valve train and to check for oil leaks.
