- Engine:
- C7 (S/N: C7S500-5312)
- C9 (S/N: C9S500-722)
Introduction
This Special Instruction explains the installation of a new turbocharger on the above listed engines. Do not begin the procedure until you have read the information that is contained in this instruction.
New Parts
C7 RV     | ||
Part Number     | Part Name     | Quantity     |
290-0541     | Turbocharger Gp     | 1     |
3E-4352     | Hard Washer     | 1     |
6V-2695     | O-Ring Seal     | 1     |
6V-5166     | O-Ring Seal     | 1     |
8C-5748     | Bolt     | 1     |
8E-9571     | Hard Washer     | 1     |
185-9356     | Stud     | 1     |
281-2203     | Bracket     | 1     |
304-2664     | Bracket     | 1     |
304-2669     | Coupling     | 1     |
C9 Truck     | ||
Part Number     | Part Name     | Quantity     |
290-0586     | Turbocharger Gp     | 1     |
3E-4352     | Hard Washer     | 2     |
5P-7970     | Nut     | 1     |
6V-2695     | O-Ring Seal     | 1     |
6V-5166     | O-Ring Seal     | 1     |
8C-5748     | Bolt     | 2     |
9M-1974     | Hard Washer     | 4     |
109-2332     | O-Ring Seal     | 1     |
281-2203     | Bracket     | 1     |
304-2663     | Bracket     | 1     |
304-2669     | Coupling     | 1     |
6I-4733     | Stud     | 1     |
9X-2098     | Taperlock Stud     | 2     |
304-2741     | Hose As     | 1     |
304-2742     | Hose As     | 1     |
C9 RV     | ||
Part Number     | Part Name     | Quantity     |
304-2690     | Turbocharger Gp     | 1     |
352-4924     | Clean Gas Induction Valve Gp     | 1     |
3E-4352     | Hard Washer     | 2     |
5P-7970     | Nut     | 1     |
6V-2695     | O-Ring Seal     | 1     |
6V-5166     | O-Ring Seal     | 1     |
8C-5748     | Bolt     | 2     |
9M-1974     | Hard Washer     | 4     |
109-2332     | O-Ring Seal     | 1     |
281-2203     | Bracket     | 1     |
304-2663     | Bracket     | 1     |
304-2669     | Coupling     | 1     |
6I-4733     | Stud     | 1     |
9X-2098     | Taperlock Stud     | 4     |
Former Parts
Former Parts     | ||
Engine     | Part Number     | Part Name     |
C7 RV     | 299-5720     | Turbocharger Gp     |
C9 Truck     | 290-0583     | Turbocharger Gp     |
C9 RV     | 297-5381     | Turbocharger Gp     |
Procedure for the C7 RV
Illustration 1 | g01416767 |
The new groups that are added for this change are 285-3864 Clean Gas Induction Control Gp (2) and 290-0541 Turbocharger Gp (1) .
- Loosen the turbocharger oil lines, the jumper tube, the CGI oil lines, and the elbow for the turbocharger compressor outlet.
- Remove the turbocharger and the CGI valve.
- Replace the old bracket with the new bracket.
Illustration 2 | g01416921 |
(3) New bracket |
- Assemble the decoupled turbocharger (4) .
Note: The air valve and the jumper tube are loosened in order to do the update.
Illustration 3 | g01416945 |
- Tighten the venturi air lines (5) onto the engine.
Illustration 4 | g01416950 |
- Install the CGI Valve on the engine. Install the coupler (6) onto the engine.
Illustration 5 | g01417180 |
(6) Coupler |
- Tighten the oil lines back to the turbocharger. Tighten the oil lines to the actuator.
Procedure for the C9 On-highway and RV
Illustration 6 | g01417189 |
Refer to the following for the components that are changed or added.
- Turbocharger
- CGI Valve
- Coupler
- CGI Bracket
Note: The difference between the C9 On-highway engine and the C9 RV is the oil lines for the CGI.
Note: The bracket for the CGI on the C9 is new.
- Loosen the turbocharger oil lines, the jumper tube, the oil lines for the CGI, and the elbow for the turbocharger compressor outlet.
- Remove the Turbocharger and CGI Valve.
- Replace the four bolts with 9X-2098 Taperlock Studs .
Illustration 7 | g01417200 |
- Install the new CGI bracket.
Illustration 8 | g01417206 |
(2) New |
- Assemble the decoupled turbocharger (3) on the engine.
Illustration 9 | g01417221 |
- Assemble the turbocharger (3). Tighten the oil lines.
Illustration 10 | g01417227 |
- Assemble the jumper tube to the CGI valve, the elbow, and the compressor outlet.