2-9-13-prinadlezhnost-vkladyshejj-korennykh-podshipnikov-ustanavlivaemykhv-blok-cilindrov.html
2.9.13. An accessory of loose leaves of radical bearings, устанавливаемыхв the block of cylindersIn the cylinder block loose leaves of radical bearings according to beaten out on the block of cylinders colour marks are established.
For were in the use and the restored cranked shaft it is necessary measure necks of radical bearings for installation of corresponding loose leaves of bearings.
The nominal size of a radical neck – diameter of 65 mm.
The repair size of a radical neck – diameter of 64,75 mm.
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Fig. 2.457. Marks of loose leaves of the radical bearings established in the block of cylinders
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For restored crankshaftов there are loose leaves of bearings большего the repair size. They are designated by the same colour marks, as well as loose leaves of bearings of the nominal size.
Accessory of loose leaves of bearings of a frame of a cam-shaft
For were in the use and the restored cranked shaft it is necessary measure necks of radical bearings for installation of corresponding loose leaves of bearings.
Old marks probably available on a cranked shaft are void for the restored cranked shaft.
Pick up loose leaves of radical bearings with actual diameter of radical necks of a cranked shaft according to the following table.
The sizes of a cranked shaft, mm
Check of axial displacement
Fasten a micrometer with a universal support to the block of cylinders and put against a crank cheek.
Press crankshaft by hand to a micrometer, establish a micrometer on 0.
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Fig. 2.458. Check of axial displacement crankshaftа
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Wring out crankshaft from the indicator and consider its indications: axial displacement: 0,090–0,251 mm.
Check of radial palpation
Remove directing frame and clear radical necks.
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THE NOTE
Maintained bearings in places do not change.
It is necessary to replace loose leaves of bearings at deterioration to a nickel layer.
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Put measuring strip Plastigage according to width of the bearing on a neck and in loose leaves of bearings.
Thread Plastigage should lay down in the middle of the bearing loose leaf.
Put a frame of cam-shafts and fasten with the moment 30 Нм. Коленвал do not turn.
Again remove a frame of cam-shafts.
Compare width of thread Plastigage to a scale.
New radial palpation: 0,010–0,077 mm.
The limiting admission of radial palpation: 0,08 mm.
* On colour marks it is impossible define conformity of loose leaves of bearings (new or restored crankshaftы).
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