Page 84
Operation 3
Fuel pump - Check function, removal,
replacement and overhaul
Testing the fuel pump
Providing there are no leaks or obstructions in the fuel line, a quick
check on the fuel pump efficiency can be made a follows:
1.
Disconnect the carburettor feed pipe at the fuel pump
outlet.
2.
Connect a slave pipe to the outlet and place in a clean jar.
3.
Crank the engine, when a well defined spurt of fuel should
be apparent for each revolution of the engine. If the pump does not
operate satisfactorily an overhaul is needed.
To remove and dismantle
(
Figure 3
)
1.
Disconnect the fuel pump inlet and outlet pipes and plug to
avoid leakage or dirt ingress.
2.
Unscrew the fixing nuts and lock washers and remove the
pump.
3.
Before dismantling, clean the exterior of the pump and
mark the upper and lower halves in line with the tang on the
diaphragm to aid re-assembly.
4.
Remove the five screws and separate the upper and lower
halves of the pump.
1
5.
Hold the pump in an inverted position, push in and then
turn the diaphragm through 90° to release the pull rod from the key in
the rocker arm assembly.
Note:
The diaphragm and pull rod assembly are riveted together and
must not be dismantled.
6.
release the circlip and withdraw the rocker arm and
extension spindle from the lower body.
7.
Remove the rocker arm and extension, complete with
washers and return spring.
8.
Check components for wear and renew if necessary for
subsequent re-assembly.
Note:
If the valves are peened in they are
not
replaceable. If these are
faulty a new pump complete will need to be fitted.
To re-assemble and refit
1.
Locate the rocker arm, complete with return spring and
extension into the lower pump body.
2.
Insert the spindle, locate the two washers and secure with
the circlips.
3.
Position the diaphragm on the lower body seating and pull
rod key plate if fitted.
4.
Insert the diaphragm pull rod into the rocker arm extension
key and rotate through 90° to lock in to position.
Figure 2
Fuel tank and pipes
1.
Fuel tank
13.
Hose
24.
Pipe, pump to carburettor
2.
Sender unit
14.
Clip
25.
Clip
3.
Sealing ring
15.
Breather hose
26.
"P" clip
4.
Locking ring
16.
Clip
27.
In-line petrol filter
5.
Drain plug
17.
Grommet
28.
Pipe
6.
Washer
18.
Pipe, pump to filter
29.
Sleeve
7.
washer
19.
Olive
30.
Clip
8.
Nut
20.
Nut
31.
Clip
9.
Set screw
21.
Pipe, filter to pump
32.
Clip
10.
Washer
22.
Olive
33.
Petrol cap
11.
Nut
23.
Nut
34.
Filler cap (chrome)
12.
Filler tube
Содержание Kitten Estate
Страница 15: ...Page 15...
Страница 17: ...Page 17...
Страница 22: ...Page 22...
Страница 26: ...Page 26...
Страница 38: ...Page 38 Figure 4 Engine cylinder block exploded...
Страница 54: ...Page 54...
Страница 55: ...Page 55...
Страница 65: ...Page 65...
Страница 66: ...Page 66...
Страница 75: ...Page 75...
Страница 77: ...Page 77...
Страница 90: ...Page 90...
Страница 92: ...Page 92...
Страница 97: ...Page 97...
Страница 100: ...Page 100...
Страница 101: ...Page 101...
Страница 103: ...Page 103...
Страница 108: ...Page 108...
Страница 114: ...Page 114...
Страница 116: ...Page 116...
Страница 117: ...Page 117...
Страница 118: ...Page 118...
Страница 119: ...Page 119...
Страница 120: ...Page 120...
Страница 123: ...Page 123...
Страница 124: ...Page 124...
Страница 126: ...Page 126...
Страница 130: ...Page 130...
Страница 131: ...Page 131...
Страница 133: ...Page 133...