Remove the bearing caps, keeping them in order, remove the oil seal, then lift out the intake camshaft. Turn the crankshaft pulley approximately 50Â° clockwise and put the timing mark of the crankshaft pulley in line with the centers of the crankshaft pulley bolt and the idler pulley bolt. Before servicing the vehicle, refer to the Precautions section. Apply a light coat of oil on the threads of the bearing cap bolts. Install or connect the following: Alternator and 2 mounting bolts. If a malfunction exists, replace the tensioner. Tighten the crankshaft pulley bolt depending on the engine to the following torque values: 3.
Tighten the bolts evenly and in several passes to 12 ft. Align the timing mark 1 dot of the camshaft main gear about 10Â° angle by turning the camshaft with a hex wrench until the timing mark aligns. Position the exhaust camshaft on the head so that the alignment marks are at a 90 degree angle from vertical. Before servicing the vehicle, refer to the Precautions section. The tensioner can be set by: A.
To remove the exhaust and intake camshafts from the left side cylinder head: A. Uniformly loosen and remove the exhaust camshaft bearing cap bolts in several passes and in the proper sequence. Install the other bearing caps, in sequence shown, with the arrow marks facing forward. Wait at least 90 seconds before performing any other work. Remove or disconnect the following: Negative battery cable Engine under cover Accessory drive belt Alternator connector Cap and nut Alternator wire Alternator wire clamp from the wire clip on the alternator Bolt and pipe clamp 2 automatic transmission oil cooler pipes from the alternator Bolt, nut, pipe bracket and alternator 1.
Before servicing the vehicle, refer to the precautions in the beginning of this section. Install the gasket to the cylinder head cover. Timing belt tensioner Timing belt from the camshaft timing pulleys Camshaft timing pulleys No. Connect the engine wire to the cylinder head covers. To remove the exhaust and intake camshafts from the right side cylinder head: Fig. The pulley bolt for the drive belt tensioner has a left-handed thread.
Remove the bolt, and disconnect the wire clamp bracket on the engine wire from the camshaft bearing cap. Remove the oil control valve filter left or right and gaskets. Remove the 5 bearing caps and camshaft Camshaft bolt removal sequence Camshaft No. Install the wire clamp to the bracket on the cylinder head cover. Camshaft bearing cap bolt removal sequence-3. Apply engine oil to the thrust portion of the camshaft. Install the bearing caps to their proper position.
If the camshaft is not kept level, the portion of the cylinder head receiving the shaft thrust may crack or be damaged, causing the camshaft to seize or break. Install the gasket to the cylinder head cover. The drive belt tension may be slackened by turning the tensioner counterclockwise. Left cylinder head cover by removing the 8 bolts and 8 seal washers. Install the cylinder head valve covers. Cylinder head covers Timing belt to the engine 1 1 Page 50 Negative battery cable to the battery 7. Before servicing the vehicle, refer to the Precautions section.
Parts® lexus sc430 radiator support oem parts diagrams 2006 lexus sc430 base v8 43 liter gas radiator support. The drive belt tension may be slackened by turning the tensioner counterclockwise. Remove any oil from the contact surface. Apply multi-purpose grease to new camshaft oil seals. Connect the negative battery cable. Align the arrows at the front and rear of the cylinder head with the bearing cap. See the camshaft procedure for tightening sequence.
Use new gaskets Dipstick and power steering pump bracket Exhaust manifolds. Check valve clearance and replace the shims as necessary. Coat the threads of each bolt with clean oil, then tighten them, in several passes, in sequence, to 14 ft. Retightening camshaft bearing cap bolts, Step 1-3. Remove the 2 bolts and engine hanger No. Install a new gasket to the head cover. Before servicing the vehicle, refer to the precautions in the beginning of this section.