Nissan Armada 2025-2026 Service and Repair Manual: Piston
DESCRIPTION
| Selection points | Selection parts | Selection items | Selection methods |
|---|---|---|---|
| Between cylinder block and crankshaft | Main bearing | Main bearing grade (bearing thickness) | Determined by match of cylinder block bearing housing grade (inner diameter of housing) and crankshaft journal grade (outer diameter of journal) |
| Between crankshaft and connecting rod | Connecting rod bearing | Connecting rod bearing grade (bearing thickness) | Combining service grades for connecting rod big end diameter and crankshaft pin outer diameter determine connecting rod bearing selection. |
| Between piston and connecting rod | — | — | — |
The identification grade stamped on each part is the grade for the dimension measured in new condition. This grade cannot apply to reused parts.
For reused or repaired parts, measure the dimension accurately. Determine the grade by comparing the measurement with the values of each selection table.
For details of the measurement method of each part, the reuse standards and the selection method of the selective fitting parts, refer to the text.
WHEN CYLINDER BLOCK IS REUSED
Measure the cylinder bore inner diameter. Refer to Inspection.
Determine the bore grade by comparing the measurement with the values under the cylinder bore inner diameter of the “PISTON SELECTION TABLE”.
 | : Front mark |
 | : Two dimensional code |
Select piston of the same grade.
PISTON SELECTION TABLE
Unit: mm (in)
| Engine bank | Bank1 | Bank2 |
|---|---|---|
| Cylinder bore inner diameter | 86.000 - 86.015 (3.3858 - 3.3864) | 86.000 - 86.015 (3.3858 - 3.3864) |
| Piston skirt diameter | 85.965 - 85.980 (3.3844 -3.3850) | 85.965 - 85.980 (3.3844 - 3.3850) |
NOTE:
Piston is available together with piston pin as assembly.
No second grade mark is available on piston.
Inspection
CRANKSHAFT END PLAY
Measure the clearance between thrust bearings and crankshaft arm when crankshaft is moved fully forward or backward with a dial indicator.
Standard and limit : Refer to Cylinder ...
Other materials:
Frame Vehicle Construction
(1) FEATURES OF FRAME TYPE VEHICLE
The body is bolted to the frame via rubber bushings. Unlike uni-bodies, the suspensions and power train units are assembled to independent frames. The frames support the weights of these components and absorb any incoming impact from outside, providing a structure ...
Exploded View
FRONT
Front heater & cooling unit assembly O-ring High-pressure pipe Valve cap (high-pressure side) Tube clip 1 Washer seal Condenser & liquid tank assembly High-pressure flexible hose Low-pressure flexible hose Valve cap (low-pressure side) Low-pressure pipe Tube clip 2 Front ...
Intelligent Key battery replacement
WARNING
Serious hazard: Swallowing a button cell battery can result in severe
injury or death.
If a coin-type battery is swallowed, it can cause internal burns within
as little as two hours.
Always keep both new and used batteries away from children when handling
your Nissan Armada ...
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