REPAIR MANUAL - Wisconsin Motors

3. Loosen any two injector high pressure pipe nuts
at the injector end. Set the accelerator to the fully
open position, and with the ignition switch "on",
crank the engine until fuel free from air flows.
Tighten the line nuts.
4. Energize the glow plugs. (Refer to page 8.)
5. Start the engine.
new filter element in position and replace the
bowl. Tighten center stud to 6-8 lb./ft. (8-11 Nm).
5. Bleed the fuel system (refer t page 22,
CAVmDPA fuel system).
FUEL FILTERS
Clean Fuel is a Must in diesel operation. Extreme
conditions may require additional filters to provide
longer filter change periods - when clean fuel is not
available.
Continental diesels are normally equipped with
the filter installed between the fuel injection pump and
the transfer pump outlet- so the filter is on the pressure
side of the transfer pump.
The period for changing the element will largely
depend upon the quality and condition of the fuel
available. Under normal conditions the element
should be renewed every 400 hours. This period
should be decreased if unavoidable contamination of
the fuel is experienced.
Not : Electrical equipment such as starters should be
shielded with non-conductive material during filter
replacing and priming to prevent fuel entry.
CAV-DPA Fuel Filter
The fuel filter is of the paper element type, and no
attempt should be made to clean the element. It should
be replaced when periodical maintenance is being
carried out or if there is reason to believe that the
element is plugged.
Under normal conditions, water should be drained
from the fuel filter approximately once a week. Poor
fuel quality and harsh work conditions can shorten the
weekly drain interval to daily intervals.
To drain the water from the filter, simply loosen the
drain plug at the bottom of the filter assembly 1/2 to 1
turn. Leave the drain plug open until water-free fuel is
observed. Tighten the drain plug.
Stanadyne Fuel Filter
Glow Plugs
Note: This fuel filter is not a water separator. If water
contamination is anticipated, an additional primary
fuel filter and water separator should be installed
before the fuel transfer pump.
No attempt should be made to clean this type
element. It should be replaced at the regularly scheduled
periodic maintenance interval or if there is
reason to believe that it is plugged.
To replace the metal canister element simply
release the two spring clamps and pull the old element
off the filter bracket. Lube the new element
grommets with clean diesel fuel and push into place.
Snap the spring clamps into position and bleed the
fuel system. (Reference page 23, Stanadyne Fuel
System.)
Not : It is best to drain the water after the engine has
been at rest for awhile. This allows the water, which is
heavier, to separate and settle to the bottom of the
filter. Always drain the water from the fuel filter with the
engine dead and electric fuel pump off.
To replace the filter element:
1. Remove filter bowl.
2. Discard the dirty element. Remove and discard
the upper and lower element sealing washers and
O-ring from the center stud.
3. Clean the inside of the bowl and center tube.
4. Fit the new upper and lower sealing washers.
Install new O-ring on the center stud. Place the
Stanadyne Fuel Filter (# TMD20FO0400)
23