Scania DC11 - Page 23

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Scania CV AB 2011, Sweden
23
The compression tester can be used on many
engine types by using various accessories.
Compression tester 98 249
1 Manometer
2 Reset valve
3 Flexible metal hose
4 Gauge rod
5 End sleeve, diameter 21 mm
6 Spacing sleeve with support lug
7 Spacing sleeve with shoulder
8 Spacing sleeve, length 6 mm
9 Spacing sleeve, length 19 mm
10 Spacing sleeve, length 25 mm
11 Spacing sleeve, length 38 mm
12 Cap nut
13 Threaded socket nut
14 Large yoke
15 Small yoke
It is essential that the battery is fully charged
when carrying out the compression test.
Otherwise, the compression pressure obtained
will be insufficient.
1 Shut off the fuel supply by removing fuse
No. 20 for fuel shut off in the central
electrical unit.
2 Clean around the injectors. Remove the
pressure pipes for the injectors using tool
99 310.
IMPORTANT! Place protective caps on the
delivery valve holders on the injection pump
and on the injectors to protect them from dirt.
3 Remove the rocker cover.
4 Remove the injectors and copper washers.
5 Turn the engine with the starter motor a
couple of times to remove any loose soot in
the cylinders.
Engine assembly
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