WORKSHOP MANUAL for HEINKEL TOURIST - Secret Society ...

Disassembling and Fitting of Pallas-Carburettor
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Remove 2 countersunk screws 71/7 on cover plate. Take off gas
piston 71/2, gas piston spring 71/3 and pump jet needle 71/8
from carburettor housing 71/1 (watch for gasket 71/44).
Remove 2 countersunk screws 71/26 on float chamber, remove
cover 71/25 (gasket 71/43!).
Unscrew hollow screw 71/36 (SW 12) and remove banjo connection
71/33. (Watch for fuel filter 71/34 and gaskets 71/35 and
71/32).
Undo collar nut 71/31 (SW 17), push needle seating bush 71/29
with float needle 71/28 and float 71/27 toward the side of float
chamber housing. (gaskets 71/30).
Remove pump locking screw 71/23 (SW 19). Watch for gasket
71/24).
Using socket wrench (SW 10), undo pump stop screw 71/15, at
the same time removing the pump needle jet 71/10.
Please note:
To avoid damage to high-precision made accelerator pump
when dismantling, only remove complete needle jet, i.e. with
pump lock screw still in its position; for reassembly fit complete
needle jet as well.
Sequence:
Pump lock screw 71/15, main jet 71/16, spring 71/14 and pump
piston.
(When assembling, take care that front face of pump piston
71/11 with its 4 holes is turned toward pump jet needle 71/10.)
Dismantle pump piston 71/11.
Using a screw driver, remove pump valve screw 71/13. Be careful
not to lose valve plate.
Undo screw 71/18, remove idling jet 71/17.
Undo counter nut 71/20(SW9), remove air adjusting screw7l/19.
Using clean petrol, clean all parts. Then check for wear.
Please note:
The jets may not be reamed out or cleaned with a hard instrument.
If ncessary, replace very worn parts e.g. carburettor
housing, pump needle jet, needle seat bush, gas piston, pump
jet needle and float needle, as those parts, when worn, would
adversely affect fuel consumption, performance and slow runing
adjustment.
Remove defective gaskets.
For reassembly, reverse above procedure.