Selection Of The Cylinder Gasket - APRILIA C361M Workshop Manual

ENGINES C361M / C364M
3.6.5.

SELECTION OF THE CYLINDER GASKET

•
Lubricate the cylinder and fit it temporarily on the piston
without a gasket.
•
Fit the comparator on the specific tool, zero it on a ref-
erence surface and mount the assembly on the cylin-
der without altering the position of the comparator.
•
Block the tool with the original head attachment nuts.
•
Turn the drive shaft to the top dead centre and meas-
ure the shift "S" from the bedding value.
•
Identify the thickness of the cylinder gasket to be used
when reassembling. Identification of the exact thick-
ness will result in maintenance of the correct compres-
sion ratio.
SHIFT "S"
2,85 ÷ 3,10
3,10 ÷ 3,25
3,25 ÷ 3,45
GASKET THICKNESS
0,4
0,5
0,75
ENGINE
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