5.22. Rods and pistons - installation and check of gaps in conrod bearings
1. Before installation of pistons assembled with rods the surface of the cylinder has to be absolutely pure, has to be chamfered edges of cylinders, and the bent shaft is installed in the block of cylinders.
2. Wipe a back surface of a new top connecting rod and lay it in the place in a rod. Make sure that the ledge on an insert came into selection in a rod and lubricant openings coincided (photo). Not to grease an insert. Similarly establish the lower insert in a rod cover.
3. Place joints of piston rings according to the scheme (photo).
4. Oil pistons and rings pure for the engine, squeeze rings adaptation (photo), having left the acting site of the piston.
|
22:3á Arrangement of joints of piston rings (till 1990)
1. Top compression ring
2. Top disk of an oil scraper ring
3. Dilator of an oil scraper ring
4. Plane of rotation of the crankshaft
5. Finger axis
6. Lower disk of an oil scraper ring
7.
|
5. Turn the crankshaft to the lower dead point in the first cylinder, oil cylinder walls for the engine.
6. Orient the piston so that the tag of F or a kerneniye (on the V6 engine) were turned towards a forward part of the engine (photo).
7. Carefully enter the lower part of the piston with a rod into the first cylinder against the stop of the device for sinking of rings in the block of cylinders. Slightly knock on the upper edge of a mandrel for uniform contact with the plane of the block of cylinders.
8. Enter the piston into the cylinder, carefully tapping with the wooden handle of the hammer on the bottom of the piston (photo). Big effort not to apply.
9. Attract a rod to a neck of the crankshaft and check a gap in the conrod bearing (photo). Procedure of check
|
22:36 Arrangement of joints of piston rings (after 1990)
1. Top compression ring
2. Top disk of an oil scraper ring
3. Lower disk of an oil scraper ring
4. Lower compression ring
5. To a forward part of the engine
6. Dilator to a maslosja
|
|
22.4 Preparation of the piston and a rod for installation in the cylinder differs in nothing from the procedure for radical bearings (see above). Rotation of the crankshaft or the slightest hit of oil on inserts at measurements are not allowed. Tighten nuts of a cover of a rod with set
|
10. Carefully remove the caliber remains, grease inserts and a neck of the crankshaft, establish a cover and evenly tighten nuts with the set moment.
11. Repeat these operations for other rods.
12. After final installation of pistons with rods,
check freedom of rotation of the crankshaft.
13. Check an axial side play of a rod (see above). Keep in mind that after installation of new details the side play and can be less norm and grinding of rods will be required.
14. Collect and install the engine, being guided by appropriate sections