Clear working surfaces of covers of bearings and basic necks of the camshaft. Establish an insert of the forward bearing. Lay the camshaft in a bed of a head of the block of cylinders. Put on a piece of plastic caliber on each neck of the camshaft. Establish covers of bearings. Tighten bolts of covers with the inhaling moment:

No. 1 – 30 N · m (301 kg · cm);

No. 2 – 30 N · m (301 kg · cm);

No. 3 – 9 N · m (92 kg · cm).

Fig. 2.86. Installation of covers of bearings of camshafts

ATTENTION Do not turn the camshaft. Uncover bearings. Measure width of the deformed plastic calibers in the widest part and calculate a side play.

Standard (admission):

mm neck No. 1-0,007-0,038;

the others – 0,025–0,062 mm.

Standard (release):

mm neck No. 1-0,015-0,054;

the others – 0,025–0,062 mm.

Limit:

mm neck No. 1-0,070;

the others – 0,100 mm.

If the side play is more than limit, replace the camshaft. If necessary replace covers of bearings and a head of the block of cylinders.

Remove the remains of plastic calibers. If necessary replace the bearing of a forward support.

NOTE Use inserts of one dimensional group specified on the bearing and a head of the block of cylinders.

Diameter of a bed of the bearing:

tag "1" – 40,000–40,008 mm;

tag "2" – 40,009–40,017 mm;

tag "3" – 40,018–40,025 mm.

Diameter of a neck of the camshaft – 35,971–35,985 mm.

Insert thickness:

tag "1" – 2,000–2,004 mm;

tag "2" – 2,005–2,008 mm;

tag "3" – 2,009–2,012 mm.