2. Examine the Spring for fatigue or breaks and replace as
needed. Place the Spring into the Retainer.
3. Examine the Valve for pitting or grooves and replace as
needed. Set the Valve onto the Spring with the concave
side down.
4. Place the Seat into the valve chamber with the concave
side down. Then apply liquid gasket to the O-Ring and
press squarely into the lip on the Spring Retainer.
NOTE: Effective with 6-95 mfg date, the O-Ring was
moved to the back side of the Seat with the O-Ring
installed first, onto the lip in the manifold chamber,
then the Seat with the machined O-Ring groove down.
NOTE: Effective with 11-95 mfg date, the Seat was
modified to a new thicker style, still with the O-Ring
installed first, onto the lip in the manifold chamber,
then the Seat with the machined O-Ring groove down.
5. Examine the Seat for any grooves, pitting or wear and
replace. Place the new Seat onto the the O-Ring with the
concave side down.
6. Look for wear or damage to both the inner and outer
O-Rings on the Inlet Adapter and replace.
7. Fit the O-Rings into both the outer groove and face
groove of the Inlet Adapter and apply liquid gasket into the
O-Ring crevice.
8. Press the Inlet Adapter into the lower manifold chamber.
9. Remove and examine both O-Rings on the Discharge
Valve Spacer for wear or cuts and replace as needed.
10. Fit the new O-Rings into the groove on the outside of the
Discharge Valve Spacer. Apply liquid gasket into the
O-Ring crevice and carefully press the Spacer completely
into the Discharge Manifold chamber with the smaller
diameter side down.
11. Replace Discharge Manifold over the Plunger Rods with
Discharge Valve Spacers to the top and Inlet Adapters to
the bottom. Tap with a soft mallet until completely seated
in chambers.
12. Reinstall the eight Socket Head Screws and torque in
sequence to specifications in torque chart.
NOTE: It is highly recommended that antiseize lubricant
(PN6119) be applied to the threads on all stainless
steel components to prevent galling.
IMPORTANT: Follow the torque sequence to assure
the proper alignment.
Inlet Valve Assembly Removal of I.M. Socket Head Screws Rotate Crankshaft to position plungers
Removal of Inlet Manifold Removal of Hi-Pressure Seals Removal of Lo-Pressure Seals
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