Act on the nut to remove the injector uniformly. (Fig. 17+18)
Warning: after removal, check that the copper washer is on
the injector's extracted head. Otherwise, use the Würth tool to
remove it (item no. 1952 003 911).
3) Extracción del inyector con tornillo de empuje
M16x1.5 en caso de rotura del inyector (parte inferior)
durante la extracción con tornillo de empuje M17x0.75
In the event that during removal (see paragraph 2 of these
instructions) the original M17x0.75 thread was torn off and/or the
head's upper part has come off and is hanging from the thrust screw,
you must make a new thread in the seat's remaining part that has
come off to be able to refit the M16x1.5 thrust screw later on. Since
the head's upper part has come off, you must make the new thread
in the head's lower conical part. As such, first of all remove the insert
along with all the small parts from the head. Below is the description
of the entire procedure.
Use the bar magnet to first remove parts such as the needle, etc.
(Fig. 19+20)
After removing all the injector's small parts from the head using the
magnet, you must remove the nozzle. Insert the extractor into the
injector seat with a plastic sleeve and with the expander closed.
(Fig. 21)
Warning: the expander should be brought exactly all
the way to the bottom. The expander will be opened at the
bottom of the injector by blocking the tool's external body
and rotating the knurled wheel at the same time. (Fig. 22)
Now you can remove the nozzle
Fit the M16x1.5 male tap into the appropriate handle and fix it
using the grub screw. (Fig. 24) Use the hexagonal wrench and the
ratchet wrench to make the new thread in the injector head. (Fig.
25)
Warning: in order to maintain a clean and strong thread,
pay attention to that specified below. To break the metal
shaving, pull out the male tap several times or turn it
backwards. It is also advisable to use a suitable cutting oil
such as Würth's Cut+Cool threading oil (item no. 0893 050
014).
B
. (Fig. 23)
18
19
20
21
22
23
B
21