Table of contents: Valve seals ↓ Removal and installation ↓ Front oil seal ↓ Removal and installation ↓ Rear oil seal ↓ Removal and installation ↓
Valve seals
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 the attachment and adapter tool (special tool KV10H6200) (A) Remove the crackers using a finger magnet.
Caution: When performing work, do not damage the holes for the valve tappets.
5. Remove the valve spring retainer and valve spring.
Caution: Do not remove the valve spring seat from the valve spring.
6. Remove the valve seal using a puller (special tool).
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) up to the height "H" as shown in the figure on the next page.
Height "H": 11.8-12.4 mm.
3. After this operation, installation is carried out in the reverse order of removal.
Front oil seal
Removal and installation
Removal
1. Remove the following components:
- engine protection from the bottom.
- protective cover from the front right wing; see chapter "Interior and exterior body equipment".
- drive belt; see above.
- crankshaft pulley; see below.
2. Remove the front oil seal using a suitable tool.
Caution: Do not damage the front 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 the front oil seal using a suitable punch with an outside diameter of 56 mm and an inside diameter of 48 mm until it is flush with the front end surface of the front cover.
Attention:
- Be careful not to damage the front cover or crankshaft.
- To avoid burrs and distortion of the seal, press it in at a right angle.
3. After this operation, installation is performed in the reverse order of removal.
Rear oil seal
Removal and installation
Removal
1. Remove the gearbox assembly. See chapters "Clutch and manual transmission and continuously variable automatic transmission (CVT)".
2. Remove the clutch housing and driven disc (on models with manual transmission). See chapter "Clutch and 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.
(Data posted on the website: NissanBook)
Caution: Do not damage the crankshaft and cylinder block.
Installation
1. Apply fresh engine oil to the new rear oil seal and sealing lip.
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 the rear oil seal as shown in the figure
A. The surface of the rear end of the cylinder block
- Press in the rear oil seal using a suitable punch (outer diameter 102 mm and inner diameter 86 mm).
Attention:
- Do not damage the crankshaft and cylinder block.
- To avoid burrs and distortion of the seal, press it in at a right angle.
- Do not touch the grease applied to the seal lip.
3. After this operation, installation is carried out in the reverse order of removal.