REPAIR valve gear. Check the status of the camshaft
Carefully washed and wiped dry with a distribution
Inspect the shaft and measure the diameters of the necks
and height of the lift cams.
Axtexternal examination verified the absence of a shaft scoring
on the surface of the jaws, necks, and eccentric. In the presence of burrs
cams on the shaft is not suitable for further exploitation.
The camshaft is made of cast iron and has a
bleached fists high hardness. Paired with iron
bleached fifth rocker camshaft provides
reliable operation of the engine for a long time. However, this
shaft for wear can not be subjected to
pereshlifovyvaniyu repair, since the decrease of diameters
bearing journals will require installation of special body head
sleeves, and pereshlifovanie reduce the depth profile of the cams
bleached layer and thus reduce the hardness
surface of the jaw, making them already nerabotospoobnymi.
The values of allowable wear are shown in Table. Two. If the wear
exceed the permissible shaft, replace it.