PIAGGIO PORTER 1.3 16V 2008 User Manual

4. Checking coupling clearance between the
piston rings and the piston
Measure the clearances of the piston rings No. 1
and No. 2 on the whole circumference of each slot,
with a thickness gauge.
The maximum value measured is considered to be
the piston ring clearance.
If clearance of the piston ring with the piston ex-
ceeds the limit allowed, measure the piston ring
thickness. Making reference to the following
standard thickness levels. Replace the piston ring
and/or the piston, so that clearance is within the
allowed limits.
Characteristic
Piston - cylinder clearance
Specification values: 0.025 - 0.045 mm
Admissible limit: 0.11 mm
PISTON RING CLEARANCE
Specification
Desc./Quantity
Piston ring No. 1 Specification value: 0.03-0.07 mm
Admissible limit: 0.12 mm
Piston ring No. 2 Specification value: 0.02-0.06 mm
Admissible limit: 0.12 mm
Clearance limit allowed 0.12 mm
5. Opening check of the piston ring in the cyl-
inder
•
Apply oil onto the cylinder walls.
•
Fit the piston ring in the cylinder.
•
With the piston, take the piston ring
«B» to 110 mm from the cylinder block
upper surface.
•
Measure the piston ring opening, with
thickness gauge, or a feeler gauge.
- IN CASE OF REPLACEMENT, REPLACE THE WHOLE
PISTON RING KIT.
PORTER 1.3 16V Engine
EN - 301

PIAGGIO PORTER 1.3 16V 2008 Specifications

General

Brand	PIAGGIO
Model	PORTER 1.3 16V 2008
Category	Automobile
Language	English