Removal and installation
Removal
1. Remove the camshafts. See above.
2. Remove the valve lifters. See above.
3. Turn the crankshaft until the piston of the cylinder on which you need to remove the seal is at TDC. This will prevent the valve from falling into the cylinder.
Caution: When turning the crankshaft, do not pinch the timing chain with the front cover.
4. Remove the crackers.
- Compress the valve spring using a tool, attachment and adapter (special tool KV10U6200) (A).
Caution: When performing work, do not damage the holes for the valve tappets.
5. Remove the valve spring retainer and valve spring (with valve spring socket).
Caution: Do not remove the valve spring seat from the valve spring.
5. Remove the valve seal using a puller (special tool KV10107902) (A).
Installation
1. Apply fresh engine oil to the new valve seal and sealing lip.
2. Press in the valve seal using a punch (special tool KV10115600) (A) up to the height "H" as shown in the figure.
Height "H". 15.1-15.7 mm
3. After this operation, installation is performed in the reverse order of removal.
Front oil seal
Removal
1. Remove the following components:
- protective cover from the front right wing; see chapter "Interior and exterior body equipment".
- drive belt; see above.
- crankshaft pulley; see above.
2. Remove the front oil seal using a suitable tool.
Caution: Do not damage the front timing chain cover and crankshaft.
Installation
1. Apply fresh engine oil to the sealing lip and dust lip of the new front oil seal.
2. Press in the front oil seal so that the edges face the direction shown in the figure.
A. Dust-proof edge.
B. Seal lip.
- Press in the front oil seal using a suitable punch with an outside diameter of 57 mm and an inside diameter of 45 mm.
- Within 0.3 mm towards the front of the engine (from the crankshaft pulley side).
- Within 0.5 mm towards the rear of the engine (from the crankshaft sprocket side).
Attention:
- Do not damage the front cover and crankshaft.
- To avoid burrs and distortion of the seal, press it in at a right angle.
- After this operation, installation is carried out in the reverse order of removal.
Rear oil seal
Removal
1. Remove the gearbox assembly. See chapters "Clutch and manual transmission" and "Continuously variable automatic transmission (CVT)".
[Material borrowed from the website: Nissanbook.ru]
2. Remove the clutch housing and driven disc (on models with manual transmission).
3. Remove the drive disc (on models with CVT) or flywheel (on models with manual transmission). See below.
4. Remove the rear oil seal using a suitable tool.
Caution: Do not damage the crankshaft and cylinder block.
Installation
1. Apply a thin coat of sealant to the entire outer area of the new rear oil seal.
- Use brand name sealant or equivalent.
2. Press in the rear oil seal so that the edges face the direction shown in the figure.
A. Dust-proof edge; B. Seal lip.
- Press in the rear oil seal using a suitable punch (A) with an outside diameter of 115 mm and an inside diameter of 90 mm.
Attention:
- Do not damage the crankshaft and cylinder block.
- To avoid burrs and distortion of the seal, press it out at a right angle.
- Do not touch the grease applied to the seal lip.
- Press in the rear oil seal (1) as shown in the figure.
A. Surface of the rear end of the cylinder block.
3. After this operation, installation is performed in the reverse order of removal.