Removal and Installation: Removal
WARNING: This page is about a different car, the 2005 Nissan Xterra. However, it is still accessible from the selected car via links, so may be relevant.
- Remove engine room cover with power tool. Refer to "REMOVAL ".
- Release the fuel pressure. Refer to FUEL PRESSURE RELEASE .
- Drain engine oil. Refer to
"CHANGING ENGINE OIL
".CAUTION:
- Perform this step when engine is cold.
- Do not spill engine oil on drive belts.
- Drain engine coolant from radiator. Refer to
"DRAINING ENGINE COOLANT
".CAUTION:
- Perform this step when engine is cold.
- Do not spill engine coolant on drive belts.
- Remove radiator cooling fan assembly. Refer to "ENGINE COOLING FAN ".
- Separate engine harnesses removing their brackets from front timing chain case.
- Remove drive belts. Refer to "REMOVAL ".
- Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside. Refer to "REMOVAL ".
- Remove power steering oil pump bracket. Refer to "REMOVAL ".
- Remove alternator. Refer to "REMOVAL ".
- Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.
- Remove right and left intake valve timing control covers.
- Loosen bolts in reverse order as shown below.
- Cut liquid gasket for removal using Tool.
Tool number: KV10111100 (J-37228)
CAUTION: Shaft is internally jointed with camshaft sprocket (INT) center hole. When removing, keep it horizontal until it is completely disconnected. - Remove collared O-rings from front timing chain case (left and right side).
- Remove rocker covers (right and left banks). Refer to
"REMOVAL AND INSTALLATION ".NOTE: When only timing chain (primary) is removed, rocker cover does not need to be removed.
- Obtain No. 1 cylinder at TDC of its compression stroke as follows:NOTE: When timing chain is not removed/installed, this step is not required.
- Rotate crankshaft pulley clockwise to align timing mark (A) (grooved line without color) with timing indicator (B).
- Make sure that intake and exhaust cam noses on No. 1 cylinder (engine front side of right bank) are located as shown below.
- If not, turn crankshaft one revolution (360°) and align as shown below.NOTE: When only timing chain (primary) is removed, rocker cover does not need to be removed. To make sure that No. 1 cylinder is at its compression TDC, remove front timing chain case first. Then check mating marks on camshaft sprockets. Refer to "INSTALLATION ".
- If not, turn crankshaft one revolution (360°) and align as shown below.
- Remove crankshaft pulley as follows:
- Remove starter motor and set Tool. Refer to
"REMOVAL
".
Tool number: KV10117700 (J-44716)
- Loosen crankshaft pulley bolt and locate bolt seating surface as 10 mm (0.39 in) from its original position.CAUTION: Do not remove crankshaft pulley bolt. Keep loosened crankshaft pulley bolt in place protect removed crankshaft pulley from dropping.
- Pull crankshaft pulley with both hands to remove it.
- Remove starter motor and set Tool. Refer to
"REMOVAL
".
- Loosen two bolts in front of oil pan (upper) in reverse order as shown below.
- Remove front timing chain case as follows:
- Loosen bolts with power tool in reverse order as shown below.
- Insert suitable tool into the notch at the top of the front timing chain case as shown below (1).
- Pry off case by moving tool as shown below (2).
- Cut liquid gasket for removal using Tool.
Tool number : KV10111100 (J-37228)
CAUTION:- Do not use screwdriver or something similar.
- After removal, handle front timing chain case carefully so it does not twist, bend, or warp under a load.
- Remove O-rings from rear timing chain case.
- Remove water pump cover and chain tensioner cover from front timing chain case, if necessary.
- Cut liquid gasket for removal using Tool.
- Remove front oil seal from front timing chain case using suitable tool.CAUTION: Be careful not to damage front timing chain case.
- Use a scraper to remove all traces of old liquid gasket from front and rear timing chain cases and oil pan (upper), and liquid gasket mating surfaces.CAUTION: Be careful not to allow gasket fragments to enter oil pan.
Courtesy of NISSAN MOTOR CO., U.S.A.
- Remove old liquid gasket from bolt hole and thread.
- Use a scraper to remove all traces of old liquid gasket from water pump cover, chain tensioner cover and intake valve timing control covers.
- Remove timing chain tensioner (primary) as follows:
- Loosen clip of timing chain tensioner (primary), and release plunger stopper (1).
- Insert plunger into tensioner body by pressing slack guide (2).
- Keep slack guide pressed and hold plunger in by pushing stopper pin through the tensioner body hole and plunger groove (3).
- Remove bolts and remove timing chain tensioner (primary).
- Remove internal chain guide, tension guide and slack guide.NOTE: Tension guide can be removed after removing timing chain (primary).
- Remove timing chain (primary) and crankshaft sprocket.CAUTION: After removing timing chain (primary), do not turn crankshaft and camshaft separately, or valves will strike the piston heads.
- Remove timing chain (secondary) and camshaft sprockets as follows:
- Attach suitable stopper pin to the right and left timing chain tensioners (secondary).NOTE:
- Use approximately 0.5 mm (0.02 in) dia. hard metal pin as a stopper pin.
- For removal of timing chain tensioner (secondary), refer to "CAMSHAFT " [Removing camshaft bracket (No. 1) is required.]
- Remove camshaft sprocket (INT and EXH) bolts.
- Secure the hexagonal portion of camshaft using wrench to loosen bolts.
CAUTION: Do not loosen bolts with securing anything other than the camshaft hexagonal portion or with tensioning the timing chain. - Remove timing chain (secondary) together with camshaft sprockets.
- Turn camshaft slightly to secure slackness of timing chain on timing chain tensioner (secondary) side.
- Insert 0.5 mm (0.020 in)-thick metal or resin plate between timing chain and timing chain tensioner plunger (guide). Remove timing chain (secondary) together with camshaft sprockets with timing chain loose from guide groove.CAUTION: Be careful of plunger coming off when removing timing chain (secondary). This is because plunger of timing chain tensioner (secondary) moves during operation, leading to coming off of fixed stopper pin.
Courtesy of NISSAN MOTOR CO., U.S.A.
NOTE: Camshaft sprocket (INT) is a one piece integrated design sprockets for timing chain (primary) and for timing chain (secondary). - When handling camshaft sprocket (INT), be careful of the following:CAUTION:
- Handle carefully to avoid any shock to camshaft sprocket.
- Do not disassemble. (Do not loosen bolts "A" as shown).
- Attach suitable stopper pin to the right and left timing chain tensioners (secondary).
- Remove water pump. Refer to "REMOVAL ".
- Remove rear timing chain case as follows:
- Loosen and remove bolts using power tool in reverse order as shown below.
- Cut liquid gasket using Tool and remove rear timing chain case.
Tool number : KV10111100 (J-37228)
CAUTION:- Do not remove plate metal cover of oil passage.
- After removal, handle rear timing chain case carefully so it does not twist, bend, or warp under a load.
- Remove O-rings from cylinder head and camshaft bracket (No. 1).
- Remove O-rings from cylinder block.
- Remove timing chain tensioners (secondary) from cylinder head if necessary.
- Remove camshaft brackets (No. 1). Refer to "REMOVAL ".
- Remove timing chain tensioners (secondary) with stopper pin attached.
- Use scraper to remove all traces of old liquid gasket from front and rear timing chain cases, and opposite mating surfaces.
- Remove old liquid gasket from bolt hole and thread.
- Use scraper to remove all traces of liquid gasket from water pump cover, chain tensioner cover and intake valve timing control covers.