OEM 2000 Chevrolet Tracker Lash Adjuster

2000 Chevrolet Tracker Parts Questions & Experts Answers

• Q: How to replace the exhaust camshaft and lash adjusters on 2000 Chevrolet Tracker?

  A: The replacement of exhaust camshaft and lifters begins with disconnecting the negative cable from the battery. Extraction of Timing Chain housing and camshaft Timing Chain should be performed with the exhaust camshaft sprocket. Labelling the Cylinder Head with matchmarks is necessary before you detach the Camshaft Position Sensor. Rotate the Crankshaft 90 degrees to avoid valve and piston collision before you remove the exhaust camshaft bearing caps along with the exhaust camshaft. The valve lifters should receive storage in clean engine oil with the camshaft facing down while awaiting installation and they must remain undisturbed or exposed to force during this period. The j26900-2 outside micrometer (J26900-2) should be employed for measuring camshaft lobe height which requires camshaft replacement when minimum height specifications 39.721 mm (1.5638 inch) are not met. The j3001 dial indicator set (J3001) with the j26900-13 magnetic base (J26900-13) must be used to measure camshaft runout until reaching 0.10 mm (0.0039 inch) beyond which the camshaft requires replacement. The wear and damage on camshaft bearing caps and journals needs evaluation to determine whether replacement of the Cylinder Head is required. Clean the journals before camshaft installation with proper positioning of the exhaust camshaft rear end against the Camshaft Position Sensor. Gauging plastic measurements must precede the application of force to the camshaft bearing cap bolts which should be tightened to 11 nm (97 inch lbs.) across three incremental steps. To address oil clearance beyond specifications you must measure the camshaft journal diameter with the j26900-2 before replacing essential parts. An inspection of valve lifters should be conducted with the j26900-2 followed by measurement of their size to confirm bore clearance. Eliminate any debris within the valve lifter bore by using engine oil followed by valve lifter installation and a direct alignment of the timing mark with the Crankshaft keyway. Administer engine oil to the camshaft journals and lobes prior to installing the camshafts while installing the bearing caps. The installation order concludes with the Camshaft Position Sensor followed by exhaust camshaft sprocket then Timing Chain after which you can place the Timing Chain housing. The negative Battery Cable may be reconnected after the valves have had 30 minutes for settling up while checking the ignition timing if needed.