Stihl 064 Service Manual page 91

STIHL 064, 066
Top:
Hole size
a = 8.5 mm dia.
b = 15 mm (approx. 9/16")
Bottom:
Installing thread insert 9799 543 0900
Important: Do not exceed the specified
hole depth of 15 mm.
Fit M6 x 10 screw with washer in the
thread insert.
Screw the thread insert into the tank
housing. An M6 x 18 pan head screw must
then be used in place of the special self-
threading screw.
11.11 Carburetor Box
Carburetor box mounting screws
Tank housings and carburetor boxes from
machine number X 17 861 749 are
screwed together instead of welded. This
enables the carburetor box to replaced as
a separate unit.
- Remove the tank housing - see 11.10.
- Take out the carburetor box mounting
screws.
- Carefully heat the carburetor box mating
surface (e.g. with a hair dryer) and then
pull the carburetor box off the tank
housing.
Note: The carburetor box has been
modified in the manifold seating area. For
this reason the manifold, the sleeve in the
manifold and the washer have to be
replaced along with the carburetor box
- see 4.2 and 4.3.2.
Top:
Modified seat for manifold on
carburetor box
Bottom:
Groove in tank housing
- Thoroughly clean the groove in the
tank housing and fill it with insulating
paste - see 12.2.
- Fit the carburetor box in position, insert
screws and tighten them down firmly.
- If insulating paste oozes out of the
joint, wait a few minutes and then
remove the excess.
- Fit the tank housing - see 11.10.
91