ENGINE SHOP REBUILD & SERVICE PARTS MANUAL - Jacobsen
ENGINE SHOP REBUILD & SERVICE PARTS MANUAL - Jacobsen
ENGINE SHOP REBUILD & SERVICE PARTS MANUAL - Jacobsen
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<strong>ENGINE</strong> MEASUREMENTS<br />
Valve<br />
Recommended clearance for valve to valve guide<br />
Intake Exhaust<br />
(in)<br />
(0.0018~0.0030) (0.0022~0.0036)<br />
(mm) (0.045~0.075) (0.056~0.092)<br />
A B C<br />
SPECS Intake Exhaust D E<br />
F<br />
(in)<br />
STD.<br />
0.2143~0.2148 0.2136~0.2143 90 o 0.0891~0.1281 0.0276~0.0354<br />
(mm) (5.443~5.455) (5.426~5.444)<br />
(2.263~3.253) (0.7~0.9)<br />
(in) 0.2125 0.2125<br />
0.1392 0.0197<br />
LIMIT (mm) (5.40)<br />
(5.40) *<br />
(3.536)<br />
(0.5)<br />
o<br />
* A total difference of 1 between the finish angles of the valve and valve seat is required.<br />
A<br />
Measure each position<br />
o<br />
in 2 places 90 apart<br />
B<br />
1<br />
B<br />
2<br />
B<br />
10<br />
20<br />
30<br />
40<br />
60<br />
70<br />
80<br />
90<br />
C<br />
E<br />
10<br />
20<br />
30<br />
40<br />
60<br />
70<br />
80<br />
90<br />
D<br />
*<br />
F<br />
Fig. C-9 Valve and Valve Springs<br />
Page C-10<br />
Engine Shop Rebuild and Parts Manual
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