Transcript
NUMBER: 15–60–02
S.M. REF.: 13
ENGINE: 60
DATE: August 2002
SUBJECT: CRANKCASE PRESSURE SENSOR KIT 23518757 INTRODUCTION
Crankcase Pressure Sensor Kit 23518757 is used to provide a reading of crankcase pressure during vehicle operation. DETAILS AND REASON
Crankcase pressure sensor kit P/N 23518757 is available to measure crankcase pressure using existing vehicle wiring. The sensor is installed into the dipstick tube and plugged into the oil pressure sensor harness. The crankcase sensor is connected to the DDEC® ECM and will record the crankcase pressure as oil pressure readings used for conversion to inches of H2O. The crankcase pressure kit 23518757 consists of items listed in Table 1.
Table 1
Part Number
Qty
Description
23518756
1
Adaptor, Crankcase Pressure Sensor
23518634
1
Sensor, Crankcase Pressure
23518635
1
Harness, Crankcase Breather Pressure
23504352
3
Seal, Crankcase Pressure Sensor Adaptor
18SP401
1
Installation Instructions
Crankcase Pressure Kit 23518757
Assemble crankscase pressure components as follows: 1. Install three seals on crankcase pressure sensor adaptor.
2. Thread crankcase pressure sensor into adaptor. See Figure 1.
1. Crankcase Pressure Sensor
3. Seals
2. Sensor Adaptor Tube
4. Sensor Harness
Figure 1
Crankcase Pressure Sensor Components
To check crankcase pressure use the following procedure: 1. Remove the dipstick from the engine. 2. Insert adaptor into dipstick tube. 3. Connect crankcase pressure sensor harness to sensor and route harness over engine so as to avoid hot exhaust components. 4. Unplug the wiring harness from the oil pressure sensor on the left rear of the block, and plug the crankcase pressure sensor harness into the oil pressure sensor wiring. 5. Plug Diagnostic Data Reader (DDR) into the vehicle diagnostic port plug inside cab of truck. 6. Start and run vehicle until normal operating temperatures are reached before beginning the test.
To avoid injury from loss of vehicle/vessel control, the operator of a DDEC equipped engine must not attempt to use or read the Diagnostic Data Reader when the vehicle/vessel is moving.
7. With engine at operating temperature, have an assistant trigger a snapshot while the vehicle is operating at 1200 to 1350 RPM at full throttle using a loaded trailer to maintain 100% load. 8. Print the reading, including RPM, %LOAD, OIL PRESSURE, OIL TEMPERATURE, COOLANT TEMPERATURE and TURBO BOOST PRESSURE. 9. Refer to conversion chart listed in Table 2 to convert oil pressure reading to inches of H2O crankcase pressure. OIL PRESSURE READING lb/in.²
kPa
Crankcase Pressure in H O
30.0
207
0.00
31.0
214
0.47
32.0
221
0.95
33.0
228
1.43
34.0
234
1.91
35.0
241
2.39
36.0
248
2.87
36.4
251
3.0
37.0
255
3.35
38.0
262
3.83
38.4
265
4.0
39.0
269
4.31
40.0
276
4.79
41.0
283
5.27
42.0
290
5.75
43.0
296
6.23
44.0
303
6.70
45.0
310
7.18
46.0
317
7.66
2
Table 2
47.0
324
8.14
48.0
331
8.62
49.0
338
9.10
50.0
345
9.58
51.0
352
10.06
52.0
359
10.54
53.0
365
11.02
54.0
372
11.50
55.0
379
11.98
56.0
386
12.46
57.0
393
12.94
58.0
400
13.41
Acceptable Oil Pressure Versus Crankcase Pressure Limits
ADDITIONAL SERVICE INFORMATION
Additional service information is available in the Detroit Diesel Series 60 Service Manual, 6SE483. The next revision to this manual will include the revised information. As a convenience to holders of the Series 60 Service Manual, information in service manual format is attached. The page(s) may be inserted into the manual. NOTE: Manual insert pages are numbered for insertion into the current Series 60 Service Manual dated April 2002. Service manuals are available from authorized Detroit Diesel distributors. If this bulletin was obtained from the Internet, service manual page(s) are available by returning to the screen “SIB Index”, selecting attachment pages, and printing the page(s).
Detroit Diesel®, DDC®, Series 60®, DDEC®, and the spinning arrows design are registered trademarks of Detroit Diesel Corporation. © Copyright 2002 Detroit Diesel Corporation. All rights reserved. Printed in U.S.A.
