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3 cylinder engine valve clearance

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1994 Toyota Paseo ENGINE IDENTIFICATION/ VALVE CLEARANCE ADJUSTMENT

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1) Disconnect PCV hose, necessary electrical connections and spark plug wires to access valve cover. Remove nuts, seal washers, valve cover and gasket. 2) Rotate crankshaft clockwise so cylinder No. 1 is at TDC on compression stroke. Cylinder No. 1 is front cylinder at timing belt end of engine. Ensure timing mark on crankshaft pulley aligns with “0″ mark on timing belt cover. 3) Ensure valve lifters on cylinder No. 1 are loose and valve lifters on cylinder No. 4 are tight. If conditions are not as described, rotate crankshaft clockwise one complete revolution (360 degrees). 4) Using feeler gauge, measure valve clearance between valve lifter and camshaft on intake valves of cylinders No. 1 and 2, and exhaust valves of cylinders No. 1 and 3. Record valve clearance. Rotate crankshaft clockwise one complete revolution (360 degrees). 5) Measure and record valve clearance on intake valves of cylinders No. 3 and 4, and exhaust valves of cylinders No. 2 and 4. Ensure valve clearance is within specification. See VALVE CLEARANCE SPECIFICATIONS table. VALVE CLEARANCE SPECIFICATIONS TABLE (1) Application In. (mm) Exhaust Valve ………….. .012-.016 (.31-.41) Intake Valve …………… .006-.010 (.15-.25) (1) – Adjust valve clearance with engine cold. 6) If valve clearance requires adjustment, rotate camshaft so lobe on valve to be adjusted is facing upward, away from valve lifter. Position notch area on valve lifter toward inside of cylinder head. DO NOT align notch area with camshaft. Use Valve Clearance Adjuster (SST 09248-55040) to adjust valve clearance. 7) Using SST “A” of valve clearance adjuster, push downward on valve lifter. Place SST “B” between camshaft and valve lifter. See Fig. 2. Ensure enough clearance exists for adjusting shim removal. Remove SST “A”. Fig. 2: Adjusting Valve Clearance Courtesy of Toyota Motor Sales, U.S.A., Inc. 8) Using small screwdriver and magnet, remove adjusting shim. Measure and record thickness of removed shim. Using measured clearance and adjusting shim thickness, select proper replacement adjusting shim. See Figs. 4 and 5. 9) Install replacement adjusting shim. Recheck valve clearance. Apply sealant at indicated valve cover sealing areas on cylinder head. See Fig. 3. 10) Using NEW gasket, install valve cover and sealing washers. Install and tighten nuts to specification. See TORQUE SPECIFICATIONS. To install remaining components, reverse removal procedure. NEW SHIM THICKNESS TAB

Chevrolet Aluminum Cylinder Heads INSTALLATION INSTRUCTIONS

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Before final installation of the cylinder heads, several things need to be checked to assure proper engine operation: 1. Piston to valve clearance – Minimum intake valve clearance should be .080″. Minimum exhaust valve clearance should be .100″. The point of minimum intake valve to piston clearance will usually occur somewhere between 5 and 15º ATDC during valve overlap. The point of minimum exhaust valve to piston clearance will usually occur 15º to 5º BTDC during valve overlap. Re-machining of the piston top eyebrows may be required with some pistons. 2. Proper lifter adjustment and rocker geometry – Check Lifter pre-load. Check clearance of push rod to guideplate. Rocker geometry should be checked making sure that the contact point of the roller remains properly on the valve tip and does not roll off the edge. Visual inspection of the rockers, valve springs, retainers, and pushrods should be made to ensure that none of these components come into improper contact with each other. If problems with valve train geometry occur, simple changes such as pushrod length may have to be made. OTHER ASSEMBLY TIPS When installing the sparkplugs and exhaust headers, be sure to use a high temperature anti-seize compound on the threads to reduce the possibility of thread damage in the future. Do not exceed a torque of 25 ft./lbs. on the intake manifold bolts and lubricate the bolt threads prior to assembly. If pushrod to cylinder head contact is a problem, loosen rocker studs and re-position guideplate as needed for clearance. INSTALLATION: Installation is the same as for original equipment cylinder heads. Consult service manual for specific procedures, if necessary. For 350 and smaller engines, use Fel-Pro head gasket #1003. #1003 has a flattened steel O-ring around each bore and will provide an excellent, long lasting seal. However, it will compress the aluminum and you must use #1003 for subsequent gasket changes to get a good seal. For 400 c.i.d. small blocks, use Fel-Pro #1014. YOU MUST DRILL “STEAM HOLES” IN CYLINDER HEADS FOR 400 ENGINES (see Figure 2). Be sure that the surface of the block and the surface of the head are thoroughly cleaned to remove any oily film before installation. Use alcohol or lacquer thinner on a lint-free rag to clean. Apply Loctite PST or suitable thread sealer to head bolt threads. Torque to 65 ft./lbs. in three steps (30-50-65) following the factory tightening sequence (see Figure 1). A re-torque is recommended after initial start-up and cool-down (allow 2-3 hours for adequate cooling)

2007 Chevrolet Suburban C1500 Excessive Engine Oil Consumption (Verify Condition, Inspect Valve Stems, Replace Cylinder Heads if Necessary)

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Some customers may comment on excessive engine oil consumption. The rate of oil consumption described may usually be around 0.946 liter (1 quart) of engine oil in 805 to 1125 km (500 to 700 mi). CAUSE The engine oil consumption may be caused by a nick in the valve stem. CORRECTION Correction Complete the current SI diagnosis for any DTCs or symptoms found. Refer to Corporate Bulletin Number 01- 06-01-011C for Information on Engine Oil Consumption Guidelines. If excessive oil consumption has been verified, all of the valve stems need to be inspected for damage. One or more of the valve stems may be nicked.

2001 Pontiac Sunfire L4-2.2L VIN 4 Cylinder Head Removal And Installation Manual

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Cylinder Head Replacement * Tools Required * J28467-360 Engine Support Fixture * J36660-A Torque Angle Meter. Removal Procedure 1. Disconnect the negative battery cable. 2. Relieve the fuel system pressure. 3. Drain cooling system . 4. Remove the alternative fuel module assembly. Remove the drive belt . 5. Remove the air cleaner outlet duct and resonator assembly. 6. Support engine using floor jack and block of wood. 7. Remove the engine mount . 3. Remove the intake manifold . 9. Remove the exhaust manifold 10. Disconnect the Engine Coolant Temperature Sensor ( ECT ) electrical connection. 11. Remove the valve rocker arm cover. Important: When removing valve train components keep them in order. Do this to ensure that the components are installed in the same locations and with the same mating surfaces as when removed. 12. Remove the rocker arms and pushrods. 13. Remove the generator. 14. Remove the generator rear brace. 15. Remove the power steering pump. Position the pump aside with the lines attached. 16. Remove the radiator inlet pipe. 17. Remove the ignition coil assembly. 18. Remove the accessory bracket. 19. Disconnect the secondary ignition wires from the spark plugs . 20. Remove the cylinder head bolts. 21. Remove the cylinder head. 22. Clean the following components: * Head gasket surface * Valve rocker arm cover gasket surface * Threads Installation Procedure Important: Install the cylinder head gasket with the words THIS SIDE UP showing. Do not use sealer on the gasket. 1. Install the cylinder head gasket to the block. 2. Use a socket in order to push the cylinder head gasket over the rear dowel pin Important: Install the cylinder head gasket with the words THIS SIDE UP showing. Do not use sealer on the gasket. 1. Install the cylinder head gasket to the block. 2. Use a socket in order to push the cylinder head gasket over the rear dowel pin

2002 Ford Explorer Sport/ Sport Trac Cylinder Head Removal and installation manual

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Removal Both cylinder heads 1. With the vehicle in NEUTRAL, position it on a hoist. For additional information , refer to Section 100-02 . 2. Relieve the fuel system pressure. For additional information, refer to Section 310-00 . 3. Drain the cooling system. For additional information, refer to Section 303-03 . 4. Remove the intake manifold. For additional information, refer to Intake Manifold in this section. 5. Remove the cooling fan shroud. For additional information, refer to Section 303-03 . 6. Remove the accessory drive belt. For additional information, refer to Section 303-05 7. Remove the LH valve cover. For additional information, refer to Valve Cover — LH in this section. 8. Remove the RH valve cover. For additional information, refer to Valve Cover — RH in this section. 9. Disconnect the generator electrical connections. 10. Remove the accessory drive belt tensioner. 11. Remove the bolts and the generator and generator mounting bracket as an assembly. 12. Disconnect the crankshaft position (CKP) sensor electrical connector. 13. Disconnect the wiring harness retainers. 14. Disconnect the water temperature indicator sender unit and the engine coolant temperature (ECT) sensor electrical connectors. 15. Disconnect the exhaust gas recirculation (EGR) tube fitting. 16. Remove the upper heater coolant hose. 1. Squeeze the heater hose clamp. 2. Remove the heater coolant hose. 17. Remove the lower heater coolant hose and position aside. 1. Remove the bolt. 2. Squeeze the hose clamp. 3. Remove the heater coolant hose and position aside. 18. NOTE: The coolant hose will be removed with the thermostat housing. Move the coolant bypass hose clamp off the water pump outlet. 19. Remove the bolts, the thermostat housing and the bypass hose. 20. Remove the bolt and detach the wiring harness retainer. 21. Remove the bolts and position the accessory drive bracket aside.22. Detach the wiring harness retainer. 23. Remove the bolt and the oil level indicator tube. 24. Using the special tool, disconnect the LH spark plug wires from the spark plugs. 25. Disconnect the fuel pulse damper vacuum connector. 26. Remove the four bolts and position the fuel supply tube aside. 27. Remove the bolts and the fuel rail and injectors as an assembly.28. NOTE: Mark each of the roller followers to make sure it is installed in its original position during reassembly. Use the special tool to remove the roller followers. 29. Remove the lower radiator hose. 30. Remove the nut and position the A/C tube bracket aside. 31. Using the special tool, set the No. 1 piston at top dead center (TDC). RH cylinder head 32. Remove the RH fenderwell splash shield. 33. Remove the RH camshaft chain tensioner.