PIAGGIO 2005 XEVO 400ie, Workshop Manual

Page: 164 / 376

STANDARD VALUES
Specification Desc./Quantity
20°C Temperature
1400 rpm
approx. 4.5 bar
N.B.
RPM CAN BE MEASURED BOTH BY THE EXHAUST GAS ANALYSER AND BY THE DIAGNOSTIC
TESTER
Specific tooling
020680Y Diagnosis Tool
YES go to 6 NO go to 12
6 - Let the engine warm up and repeat the check with hot oil.
STANDARD VALUES
Specification Desc./Quantity
80°C Temperature
1400 rpm
approx. 1.5 bar
YES go to 7 NO go to 8
7 - Replace the oil minimum pressure switch.
8 - If pressure lower than 1.3 ÷ 1.5 bar is measured.
AHEAD go to 9
9 - Replace the oil filter and repeat the pressure check with oil at 80°C.
YES go to 10 NO go to 13
10 - The failure was fixed.
It is recommended to respect the suggested number of kilometres covered.
11 - Check and restore the electrical system.
12 - If pressure lower than 4 bar is measured.
AHEAD go to 9
13 - Remove the flywheel cover and check the by-pass and the cover sealing gasket efficiency towards
the case internal side, as described in the "Flywheel cover" chapter.
YES go to 14 NO go to 15
14 - Check whether there is an irregular clearance on the crankshaft:
- axial clearance (see the "Crankcase and crankshaft" chapter)
- radial clearance, especially in the direction of the cylinder axis
- clearance according to the direction of rotation with the connecting rod in quadrature
YES go to 16 NO go to 17
15 - Replace the faulty components ("Flywheel cover" chapter).
16 - Overhaul the engine ("Crankcase and crankshaft" chapter).
17 - Open the engine crankcase and remove the oil pump as described in the "Crankcase and crank-
shaft" chapter.
Engine
XEVO 400ie
ENG - 164