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Piston Selection Table Nissan Altima L31 рестайлинг

Engine Mechanical - QR25DE 3 illustrations ~172 words

Piston Selection Table

Unit: mm (in)
Grade number (Mark)2 (or no mark)3
Inner diameter of cylinder bore88.010 - 89.020 (3.5043 - 3.5047)89.020 -89.030 (3.5047 - 3.5051)
Outer diameter of piston88.990 - 89.000 (3.5035 - 3.5039)89.000 -89.010 (3.5039 - 3.5043)

PISTON SELECTION TABLE

Note. The piston is available together with piston pin as an assembly. The piston pin (piston pin bore) grade is provided only for the parts installed at the plant. For service parts, no grades can be selected. Only 0 grade is available.

Scheme 192

Scheme 192: When New Connecting Rod and Crankshaft are Used

Scheme 193

Scheme 193
  1. Apply big end inside diameter grade stamped on connecting rod side face to the row in the " «CONNECTING ROD BEARING SELECTION TABLE»(ref-232721-S24173353462006052000000) ".
  2. Apply pin diameter grade stamped on crankshaft front side to the column in the " «CONNECTING ROD BEARING SELECTION TABLE»(ref-232721-S24173353462006052000000) ".
  3. Read the symbol at the cross point of selected row and column in the " «CONNECTING ROD BEARING SELECTION TABLE»(ref-232721-S24173353462006052000000) ".
  4. Apply the symbol obtained to connecting rod bearing grade table to select.

Scheme 194

Scheme 194: When Crankshaft and Connecting Rod are Reused
  1. Measure dimensions of the big end inner diameter of connecting rod and outer diameter of crankshaft pin individually.
  2. Apply the dimension measured to the " «CONNECTING ROD BEARING SELECTION TABLE»(ref-232721-S24173353462006052000000) " below.
Grade0123
Upper / Lower thickness mm (in.)1.499/ 1.495 (0.0590 / 0.0589)1.503 / 1.499 (0.0592 / 0.0590)1.507 / 1.503 (0.0593 / 0.0592)1.511 / 1.507 (0.0595 / 0.0593)
Identification colorBlackBrownGreenYellow

CONNECTING ROD BEARING SELECTION TABLE