Suzuki Grand Vitara SQ416/SQ420/420WD

6. Establish directing hose (1) over a carving of shatunny bolts. It is necessary to avoid damage of a pin of the bearing and a carving of shatunny bolts at rod removal.

• Weaken lock rings of a piston finger (1).

• Remove a piston finger.

• The difference between measurements of axial section and the direction of draft leaves with a deviation from "kruglost".
  • Limit of internal diameter of the cylinder: 75.15 mm (2.9586 inches)
  • Bias of internal diameter of the cylinder
    • limit: 0.10 mm (0.0039 inches)
  • Internal diameter of the cylinder with a deviation from a kruglost
    • limit: 0.10 mm (0.0039 inches)

If though one of four cylinders has to be chiseled, chisel all four cylinders for the same bigger size. It is necessary for the purpose of uniformity and balance preservation.

2. Diameter of the piston should be measured at distance of 23 mm (0.91 inches) (1) from the end of a skirt of the piston in the direction perpendicular to a piston finger.

Norm

74.970-74.990 mm (2.9516 – 2.9523 inches)

Repair size: 0.50 mm (0.0196 inches)

75.470-75.480 mm (2.9713 – 2.9716 inches)

3. Measure internal diameter of the cylinder and diameter of the piston to find a difference which will be a piston gap. The gap of the piston should correspond to the technical requirements specified below. If it does not correspond to technical requirements, chisel the cylinder and use the piston of the bigger size. Piston gap: 0.02-0.04 mm (0.0008 – 0.0015 inches).

The internal diameters of the cylinder used here, are measured in the draft direction in two provisions.

4. Before checking, it is necessary to clear, dry and release from a deposit of a groove of the piston. Put a new piston ring (1) in a piston groove, and measure a gap between a ring and a crossing point between two flutes of piston rings by means of a kalibromer (2).

2. Check a gap of a piston finger on the top head of a rod. Replace a rod if its top head is strongly worn-out or damaged or if the measured gap leaves out of an admissible limit.

• norm: 0.003-0.016 mm (0.0001 – 0.0006 inches)
• limit: 0.05 mm (0.0020 inches)

Internal diameter of a small head of a rod: 19.003-19.011 mm (0.7482 – 0.7484 inches)

 Diameter of a piston finger: 18.995-19.000 mm (0.7478 – 0.7480 inches)

1. Check a lateral gap of a big head of a rod, having inserted and having attached a rod to his shatunny neck regularly. If it will appear that the measured gap falls outside the limits norm, replace a rod.
• Lateral gap of a big bottom head of a rod
  • norm: 0.10-0.20 mm (0. — 39-0.0079 inch)
  • limit: 0.35 mm (0.0137 inches)

1. Check a shatunny neck on existence of non-uniform wear or damage. Measure a shatunny neck on a deviation or a bias with the help a micromeasure. If the shatunny neck is injured or if a deviation or a bias more admissible limit, replace the crankshaft or переточите a shatunny neck, having addressed to point f).

Norm

43.982-44.000 mm (1.7316 – 1.7322 inches)

0.25 the mm (0.00984 inches) is lower than the nominal

43.732-43.750 mm (1.7218 – 1.7224 inches)

2. Check bearing loose leaves on existence of an oplavleniye, ulcerations, прожига or peelings and examine a configuration of contacts. The damaged loose leaves of the bearing should be replaced. There are two types of bearings of a rod available: bearing of the standard size and bearing less standard size of 0.25 mm. In order that they could be distinguished, on the bearing of the smaller size of 0.25 mm there is number (US 025) printed on its back party, and the bearing of the standard size without number.

a. Before checking a bearing gap, clean the bearing and a rod neck.
b. Establish the bearing in a rod and a bearing cover.
c. Put a part of plaster solution (1) for full width of a neck of a rod in a place of contact of the bearing (parallel to the crankshaft), bypassing lubricant openings.

d. Establish a cover of the bearing of a rod (1) on a rod. At installation of a cover be convinced that the arrow (2) on a cover indicates the party of a pulley of the crankshaft (3). Having greased with engine oil rod bolts, put the clamps covers with specified rotating the moment. Do not turn the crankshaft with plaster solution inside. The rotating moment of an inhaling: a nut of a cover of the bearing of a rod (and) — 35 N • m (3.5 kg-m, 25.5 pound on foot).

e. Uncover and by means of a ruler (2) on a cover of plaster solution (1), measure width of plaster solution in the widest place (gap). If the gap falls outside the limits norms, use the new bearing of the standard size and try on a gap.

• Oil gap of the bearing of a rod
  • norm: 0.020-0.050 mm (0.0008 – 0.0019 inches)
  • limit: 0.080 mm (0.0031 inches)

Complete diameter of a shatunny neck

=

The measured internal diameter of a big head (including the bearing less nominal size)

—

0.035 mm (0.0014 inches)

The lock ring should be established by a detachable part up or down.

2. Establish piston rings in the piston:
   • The first ring (1) differs from the second ring (2) in a form and marking. Distinguish the first ring from the second, having looked at drawing, and establish these piston rings in the piston, directing the marked party of each ring on the top of the piston.
   • Establishing a maslosjemny ring (3), at first put a strut, and then two erasing edges of a maslosjemny ring.

Do not put oil between a rod and the bearing or between a cover of the bearing and the bearing.

2. Establish directing sleeves over rod bolts. These directing sleeves protect a shatunny head and a carving of bolts of a rod from damage at installation of a rod and piston knot.

4. Establish the piston and rod knot in a cylinder trunk. Use the special tool (the compressor of piston rings) to compress rings. Direct a rod into place in the crankshaft. By means of the handle of a hammer besiege in easy blows a piston head to establish the piston in a trunk. Firmly hold the compressor of rings against the block of cylinders until all piston rings will not enter into a cylinder trunk. Special tool: (А) 09916-77310.

5. Establish a bearing (1) cover: establish an arrow (2) on a cover towards a crankshaft (3) pulley. Fasten cover nuts according to technical recommendations. The rotating moment of an inhaling: a nut of a cover of the bearing of a rod (and) — 35 N • m (3.5 kg-m, 25.5 pounds on foot).