Suzuki Engine 2002 GRAND VITARA SQ625, Service Manual

Page: 370 / 834

ENGINE MECHANICAL (G16 ENGINE) 6A1-79
3) Using micrometer, measure piston diameter.
4) Calculate cylinder bore diameter to be rebored.
D = A + B – C
D : Cylinder bore diameter to be rebored.
A : Piston diameter as measured.
B : Piston clearance = 0.02 – 0.04 mm (0.0008 – 0.0015 in.)
C : Allowance for honing = 0.02 mm (0.0008 in.)
5) Rebore and hone cylinder to calculated dimension.
6) Measure piston clearance after honing.
INSTALLATION
1) Install main bearings to cylinder block (1).
One of two halves of main bearing, has an oil groove (3).
Install it to cylinder block, and the other half without oil
groove to bearing cap.
Make sure that two halves are painted in the same color.
1. 23 mm (0.91 in.)
NOTE:
Before reboring, install all main bearing caps in place
and tighten to specification to avoid distortion of bearing
bores.
NOTE:
• All parts to be installed must be perfectly clean.
• Be sure to oil crankshaft journals, journal bearings,
thrust bearings, crankpins, connecting rod bearings,
pistons, piston rings and cylinder bores.
• Journal bearings, bearing caps, connecting rods, rod
bearings, rod bearing caps, pistons and piston rings
are in combination sets. Do not disturb such combina-
tion and make sure that each part goes back to where
it came from, when installing.
2. Upper half of bearing