1948-1952 Shop Service Manual - - Hudson-Essex-Terraplane Club

4 - 34 FUEL SYSTEM & EXHAUST
3. Remove cam lever pin rivet plug (J) retainer (H), and pin
(I).
4. Remove cam lever (B).
5. Remove six valve housing screws (P) and valve housing
(M).
6. Remove two valve housing cover attaching screws (K),
valve housing cover (R), outlet air dome diaphragm (Q)
and strainer (0).
7. Remove diaphragm assembly (G).
8. Do not remove valve cage assemblies (L and N) unless
they are to be replaced.
9. Clean all parts in gasoline. (Do not use strong solvent or
cleaner on valve housing unless the valve cage assemblies
have been removed.)
10. Inspect parts for wear and select repair kit. (One rebuilding
kit is a gasket and diaphragm kit; the other contains
all parts which are subject to wear.)
FUEL PUMP ASSEMBLY (CARTER):
1. Install new valve cage assemblies (L and N) if they have
been removed.
2. Assemble strainer (0), outlet air dome diaphragm (Q),
valve housing cover (R) and attach to valve housing.
3. Install diaphragm assembly .(G) in pump body with flat
spaces on sides toward ports.
4. Align mark on pump body with mark on valve housing
(M) and Install housing, but DO NOT tighten screws.
5. Install cam lever, pin, and pin retainer.
6. Install new rivet plug (J).
7. Flex diaphragm and hold in maximum down position
and tighten valve housing attaching screws.
8. Install cam lever return spring
FUEL PUMP DISASSEMBLY (AC):
CAUTION: Before taking a combination pump apart,
read assembly instructions paragraphs No. 2, 13 and 15
for special equipment needed. These are AC tools No.
Pt-8, and two 10-32 x 1-1/211 screws. If you do not have
these tools, or equivalent, do not attempt to overhaul the
pump.
1. Mark edges of fuel cover (25), Figure 106, and body
diaphragm flanges with a file. The parts may then be
reassembled in the same relative position.
2. Remove fuel cover screws (23) and lock-washers. Separate
cover from body by jarring cover loose with a screwdriver
handle. Remove diaphragm spring (28) and
retainer (29). Remove valve cage retainer screw and
remove retainer and cage assemblies (27) and gaskets
(26),
3. Mark edges of vacuum cover (6) and body diaphragm
flanges. The parts may then be reassembled in the same
relative position.
4. Remove two screws from opposite sides of the vacuum
cover, and substitute for them two No. 10-32 x 1-1/2
inch fillister head screws. Turn the two long screws all
the way down, and then remove the balance of the
regular cover screws. Alternately back off the two long
screws, a few turns at a time, until the force of the heavy
vacuum diaphragm spring is no longer effective. Remove
the two long screws, the cover assembly, diaphragm
spring (1), and spring retainer (12).
5. File riveted end of rocker arm pin (33) flush with steel
washer, or drill of end with 3/8" drill. Drive out rocker
arm pin with a drift punch. Wiggle rocker arm (42)
until Slinks unhook from both diaphragms. Then remove
rocker arm spring (40), rocker arm, and the link
assembly.
6. Remove bushings (38) from rocker arm before removing
rocker arm (42), two vacuum links (35 and 37), one fuel
link (36), link spacer (41), and link washer (43).