Engine Mechanical (QR25DE) (Except Hybrid): Specifications Nissan Altima L32 рестайлинг

Parts Requiring Angular Tightening

1. Use an angle wrench for the final tightening of the following engine parts. Cylinder head bolts Lower cylinder block bolts Connecting rod cap bolts Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angular tightening)
2. Do not use a torque value for final tightening.
3. The torque value for these parts are for a preliminary step.
4. Ensure thread and seat surfaces are clean and coated with engine oil.

Scheme 1

1. After removing the bolts and nuts, separate the mating surface and remove the sealant using Tool. Tool number : KV10111100 (J-37228) CAUTION: Be careful not to damage the mating surfaces.
2. In areas where the cutter is difficult to use, use a plastic hammer to lightly tap (1) the cutter where the RTV Silicone Sealant is applied. Use a plastic hammer to slide the cutter (2) by tapping on the side. CAUTION: If for some unavoidable reason a tool such as a flat-bladed screwdriver is used, be careful not to damage the mating surfaces.

Scheme 2

Scheme 3

Scheme 4

1. Using a scraper, remove the old Silicone RTV Sealant adhering to the gasket application surface and the mating surface. Remove the sealant completely from the groove of the gasket application surface, mounting bolts, and bolt holes.
2. Thoroughly clean the gasket application surface and the mating surface and remove adhering moisture, grease and foreign materials.
3. Attach the sealant tube to the tube presser. Use Genuine Silicone RTV Sealant or equivalent. Refer to " «RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS»(ref-388093-S24019970772011030100000) ".
4. Apply the sealant using Tool without breaks to the specified location. Tube presser WS39930000 (-) If there is a groove for the sealant application, apply the sealant to the groove. As for the bolt holes, normally apply the sealant inside the holes. If specified, it should be applied outside the holes. Make sure to read the text of this information. Within five minutes of the sealant application, install the mating component. If the sealant protrudes, wipe it off immediately. Do not retighten after the installation. After 30 minutes or more have passed from the installation, fill the engine with the specified oil and coolant. Refer to " «FOR USA AND CANADA : FLUIDS AND LUBRICANTS»(ref-388101-S40774969002011030100000) ". CAUTION: Carefully follow all of the warnings, cautions, notes, and procedures contained in this information.

GENERAL SPECIFICATIONS

GENERAL SPECIFICATIONS Cylinder arrangement In-line 4 Displacement cm 3 (in 3 ) 2,488 (151.82) Bore and stroke mm. (in) 89.0 x 100 (3.50 x 3.94) Valve arrangement DOHC Firing order 1-3-4-2 Number of piston rings Compression 2 Oil 1 Compression ratio 9.5:1 Compression pressure kPa (kg/cm 2 , psi)/250 RPM Standard 1,250 (12.8, 181.3) Minimum 1,060 (10.8, 153.7) Differential limit between cylinders 100 (1.0, 14) Valve timing

Scheme 5

VALVE TIMING REFERENCE CHART

See also:
• INSPECTION
• INSPECTION