Removal & Installation: Camshaft: Installation

WARNING: This page is about a different car, the 2002 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

Ensure timing mark on crankshaft pulley is aligned with center of crankshaft pulley bolt and center of No. 2 timing belt idler pulley bolt. See Figure. To install camshafts in right hand cylinder head, apply grease to thrust surfaces of intake and exhaust camshafts. Install intake and exhaust camshafts in right hand cylinder head so timing marks on sprockets align with each other. See Figure. Rotate camshaft and position timing mark (one dot) of camshaft main gear at a 10 degree angle above mating position of timing marks on both camshaft gears.
Install camshaft housing plug to cylinder head (if removed). Install camshaft oil control valve filter to right hand cylinder head. Apply silicone sealant to front bearing cap as shown. See Fig 2. Install front bearing cap. Install remaining camshaft bearing caps in their proper order from front to rear, with arrows on caps pointing forward. See Fig 3. Push in front camshaft oil seal.

Fig 1: Identifying Camshaft Bearing Cap Bolt Tightening Sequence
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Applying Sealant To Front Camshaft Bearing Cap
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Identifying Camshaft Bearing Caps
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Identify camshaft bearing cap bolts. See CAMSHAFT BEARING CAP BOLT SPECIFICATIONS table. Install NEW seal washers to bearing cap bolts "A" and "B". Coat threads and under heads of bearing cap bolts "D" and "E". See Fig 4. DO NOT apply engine oil under heads of bearing cap bolts "A", "B" and "C". Install oil feed pipe. Install bearing cap bolts in their correct location. See Fig 4. Tighten bearing cap bolts to specification in several steps, in the proper sequence. See Fig 1. See TORQUE SPECIFICATIONS .

CAMSHAFT BEARING CAP BOLTS SPECIFICATIONS

Bolt ⁽¹⁾

Length - In. (mm)

"A"

3.7007 (94.000)

"B"

2.8346 (72.000)

0.9842 (24.990)

"D"

2.0472 (51.999)

"E"

1.4960 (37.998)

⁽¹⁾	See Fig 4.

To install camshafts in left hand cylinder head, apply grease to thrust surfaces of exhaust and intake camshafts. Install camshafts in left hand cylinder head. Rotate camshafts and align timing marks (one dot) on each gear with each other. See Figure. Install camshaft housing plug to cylinder head (if removed). Install camshaft oil control valve filter to left hand cylinder head. Apply silicone sealant to front bearing cap as shown. See Fig 2. Install front bearing caps. Install remaining bearing caps in their proper location from front to rear, with arrow mark facing forward. See Fig 3. Push in front camshaft oil seal.
Identify camshaft bearing cap bolts. See CAMSHAFT BEARING CAP BOLT SPECIFICATIONS table. Install NEW seal washers to bearing cap bolts "A" and "B". Coat threads and under heads of bearing cap bolts "D" and "E". See Fig 4. DO NOT apply engine oil under heads of bearing cap bolts "A", "B" and "C". Install oil feed pipe. Install bearing cap bolts in their correct location. See Fig 4. Tighten bearing cap bolts to specification in several steps, in the proper sequence. See Fig 1. See TORQUE SPECIFICATIONS .
Remove service bolt from exhaust camshaft gears. To install remaining components, reverse removal procedure. Check valve clearance. See VALVE CLEARANCE ADJUSTMENT under ADJUSTMENTS. Fill and bleed cooling system. See COOLING SYSTEM BLEEDING .

Fig 4: Identifying Camshaft Bearing Cap Bolts & Lengths