Fiat 1998 Marea Weekend, Service Manual

Page: 113 / 846

Engine
Replacing auxiliary shaft belt
16v
Marea- Marea Weekend ©
99 range
1. Disconnect the H.T. leads from the spark
plugs and, using a USAG 279 MG spanner
or similar tool, remove the spark plugs.
2. Position tools 1860992000 in the seats for
the spark plugs for cylinders 1 and 2, tight-
ening the tool components (1) by hand to
a maximum torque of 0.5 daNm.
3. The timing is carried out with the four pis-
tons in line, therefore in order to achieve
this it is necessary to rotate the crankshaft,
through its normal direction of rotation,
using small movements, until the surface
(1) on the moving part of the tool is in line
with the plate (2) on the component fixed
in the spark plug seat.
When both the tools positioned in the spark
plug seats are in this condition, the engine
pistons will be ine with one another with
the 1st piston in the descent (intake)
stroke.
4. Visually check in the plug housings that the
splining (1) on the camshafts is near the
actual housings, if not, rotate the crankshaft
through 360°, restore the precise alignment
of the pistons using tool 1860992000, then
positron tool 1860985000 in the actual
plug housings inserting the tool pin (2) in
the splining (1) on the camshafts. The en-
gine is correctly timed under these circum-
stances.
16
Print n° 506.763/16