Oil filter with paper element ZIL-5301
On the latest series of cars, instead of a centrifugal oil filter, an oil filter with a paper filter element is installed, shown in Fig. 1
To disassemble the filter and replace the filter element 9, do the following:
- unscrew the filter assembly from the housing 1;
- - unscrew nut 15;
- - remove cover 3 with gaskets 2 and 4;
- - remove anti-drain valve 5, washer 6 and spring 7;
- - press on clamp 14, move it inside filter cap 8 by 3÷4 mm and turn it so that three teeth of clamp 14 are aligned with cap grooves;
- - remove clamp 14, filter element 9, bypass valve 10 and spring 11 from cap 8.
The manufacturer recommends using special key 245-1017071 or other improvised means to unscrew the filter.
After disassembling the filter, all its parts must be flushed with diesel fuel.
The filter is assembled in the reverse order.
Rubber gaskets 2 and 4 and anti-drain valve 5 must be replaced with new ones, and gasket 2 must be lubricated with engine oil during assembly.
When installing the assembled cap 8 with the filter into housing 1 after touching gasket 2 of the housing, it is necessary to tighten the filter another ¾ turn.
The filter is installed only by hand.
The safety valve 13 of the filter is adjusted to a pressure of 0.25 ÷ 0.35 MPa and serves to maintain the required oil pressure in the main oil line.
The pressure-reducing (radiator) valve 12 is non-adjustable, designed to bypass oil into the main oil line when starting the diesel engine, bypassing the radiator.
The bypass valve 10 is adjusted for a pressure of 0.13÷0.17 MPa, it opens when the filter element is heavily clogged or when starting a cold diesel engine with significant oil viscosity.
No adjustment during operation is required.
On some vehicles, it is possible to install a non-separable oil filter mod. FM 009-1012005, which is replaced when changing the oil in the engine.
Instead of the above filter, it is allowed to install other non-separable filter cartridges with anti-drainage and bypass valves, having the following parameters:
- diameter - 95÷105 mm;
- height 140÷160 mm;
- mounting thread - ¾ - 16 UNF.