G37x Sedan AWD V6-3.7L (VQ37VHR) (2010)
CYLINDER BLOCK DISTORTION
-
Using a scraper, remove gasket on the cylinder block surface, and also remove engine oil, scale, carbon, or other contamination.
CAUTION:
Be careful not to allow gasket flakes to enter engine oil or engine coolant passages.
-
Measure the distortion on the cylinder block upper face at some different points in six directions (C), (D), (E), (F), (G), and (H) with a straightedge
(A) and a feeler gauge (B).
Limit : Refer to EM-153, "Cylinder Block". See: Specifications
-
If it exceeds the limit, replace cylinder block.
MAIN BEARING HOUSING INNER DIAMETER
-
Install lower cylinder block (2) without installing main bearings, and tighten lower cylinder block bolts to the specified torque. Refer to See:
Service and Repair/Disassembly and Assembly for the tightening procedure.
-
Measure the inner diameter of main bearing housing with a bore gauge.
Standard : Refer to EM-153, "Cylinder Block". See: Specifications
-
If out of the standard, replace cylinder block (1) and lower cylinder block as assembly.
NOTE:
Cylinder block cannot be replaced as a single part, because it is machined together with lower cylinder block.
PISTON TO CYLINDER BORE CLEARANCE
Cylinder Bore inner Diameter