Oil Filter; Oil Pre-Screen - MTD P90 series Shop Manual

P90 Series Vertical Shaft Engines

Oil filter

To replace the oil filter:
1. Drain the oil by following the steps described in the
previous section of this chapter.
2. Clean the area around the oil filter
3. Remove the oil filter by turning it counter-clockwise,
as seen from the left side of the engine.
See Figure 1.7.
4. Place a light coating of oil on the O-ring of the new
filter.
5. Pre-fill the new filter with fresh, clean oil.
6. Thread the new filter on to the engine. Hand tighten
only.
7. Fill engine with 57 oz (1.7 L) of SAE 10W-30 oil with
a SM API rating or better.
8. Test run the engine and check for leaks before
returning the engine to service.

Oil pre-screen

To clean the pre-screen:
1. Drain the oil by following the procedures described
in the previous section of this chapter.
2. Remove the pre-screen plug using a 15/16" wrench.
NOTE: There is a spring that will come out with the
plug. See Figure 1.8.
3. Remove the screen.
4. Inspect the o-ring for signs of damage or wear.
Replace the o-ring if any are found.
5. Clean the screen in parts cleaning solution.
6. Rinse the screen in warm water.
7. Dry the screen using compressed air.
8. Install the screen.
9. Install the plug and spring.
10. Fill engine with 57 oz (1.7 L) of SAE 10W-30 oil with a SM API rating or better.
11. Test run the engine and check for leaks before returning the engine to service.
10
Figure 1.7
Spring
Plug
Figure 1.8
Oil filter
Pre-screen