Mitsubishi Eclipse 1990 Service Manual page 258

11
ENGINE OVERHAUL
Front
A
INSPECTION
(1) Clean cylinder block thoroughly and check all core hole
plugs for evidence of leaking.
(2) Examine block and cylinder bores for cracks or fractures.
CYLINDER BORE
(1) The cylinder walls should be checked for out-of-round
and taper with Tool
bore out-of-round is 0.051 mm
cylinder bore taper is 0.051 mm
If the cylinder walls are badly scuffed or'scored, the cylin-
der block should be rebored and
and rings fitted. Whatever type
used, boring and honing should be closely
with the fitting of pistons and rings so that specified clear-
ances may be maintained.
(2)
A and B. Top measurement should be 10 mm
down and bottom measurement should
in.) up from bottom of bore.
Standard value: 87.5 mm (3.445 in.)
PISTONS
(1) Piston and cylinder wall must be clean and dry. Piston
diameter should be measured 90 degrees to piston pin
at size location shown in the figure. Cylinder bores should
be measured halfway down the cylinder bore and trans-
verse to the engine crankshaft center
to bore clearance must be established in order to assure
quiet and economical operation.
Standard value:
(2) Pistons and cylinder bores should be measured at normal
room temperature, 21
TSB Revision
Piston, Connecting Rod
and
BLOCK
or equivalent
the cylinder bore at three levels in directions
mm
cylinder
in.) maximum, and
in.)
pistons
is
in.)
mm
Correct piston
7 in.)