Section 04
ENGINE
Sub-Section 04
(LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
04-04-6
A. 16 mm (5/8 in)
The difference between these 2 measurements
should be within specified tolerance. Refer to
TECHNICAL DATA 10-02.
Measurement (Fitting New Parts)
With an inside micrometer, measure cylinder di-
ameter above the exhaust port.
With a micrometer, measure the piston diameter
perpendicularly (90°) to piston axis and 3 mm (1/8
in) above bottom edge.
The difference of both measurements is the clear-
ance.
RING / PISTON GROOVE
CLEARANCE
Using a feeler gauge check clearance between
rectangular ring and groove. Replace piston. If
clearance exceeds specified tolerance. Refer to
TECHNICAL DATA 10-02.
RING END GAP
Position ring half way between transfer ports and
intake port. On rotary valve engines, position ring
just below transfer ports.
NOTE :
In order to correctly position the ring
in the cylinder, use piston as a pusher.
Using a feeler gauge, check ring end gap. Replace
ring. If gap exceeds specified tolerance, refer to
TECHNICAL DATA 10-02.
1. Transfer port
2. Intake port
CRANKSHAFT DEFLECTION
Crankshaft Deflection in Mid of
Crankshaft
Crankshaft deflection can also be measured each
end with a dial indicator.
A
A01C55A
ENGINE TYPE
MAXIMUM IN MID
OF CRANKSHAFT
All
0.08 (.0031 in)
A01C0PA
A01C0QA
2
1
Summary of Contents for FORMULA III
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Page 168: ...Section 04 ENGINE Sub Section 11 CARBURETOR AND FUEL PUMP 04 11 12 HAC SYSTEM A03I0BS...
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Page 200: ...Section 05 TRANSMISSION Sub Section 05 BRAKE 05 05 3 Skandic WT A22D12S 1 15 16 12 17 5 11 7 9...
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Page 289: ...Section 07 REAR SUSPENSION Sub Section 04 DRIVE AXLE 07 04 2 Skandic WT A22D14S 9 8 9 3 2 5...
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