- Engine:
- 3512C (S/N: T3W1-UP)
- 3516C (S/N: TKR1-UP; TKS1-UP; TKT1-UP; TKY1-UP)
Description of Change: The new tube assembly is built out of cast aluminum instead of formed steel tubing. The cast aluminum is stiffer, reducing movement, and cyclic stress on the tubing assembly, which helps to prevent damage.
Adaptable To: The parts listed in Table 1 are required for the new inlet air pipe assembly. Table 2 contains the effective serial numbers.
| Parts List | |||
|---|---|---|---|
| Item | Quantity | Part Number | Description |
| 1 | 2 | 122-3374 | Elbow |
| 2 | 2 | 8T-6764 | Pipe Plug |
| 3 | 1 | 373-7302 | Air Pipe |
| 4 | 4 | 243-2975 | Band Clamp |
| 5 | 1 | 396-3369 | Bracket |
| 6 | 2 | 112-1567 | Strap |
| 7 | 2 | 344-0079 | Bellows As |
| 8 | 1 | 396-3370 | Bracket |
| 9 | 1 | 373-7303 | Air Pipe |
| 10 | 4 | 0S-1571 | Bolt |
| 11 | 8 | 0S-1588 | Bolt |
| 12 | 13 | 0S-1594 | Bolt |
| 13 | 2 | 109-7411 | O-Ring Seal |
| 14 | 8 | 5M-2894 | Hard Washer |
| 15 | 4 | 6V-5103 | O-Ring Seal |
| 16 | 4 | 9S-8752 | Full Nut |
| 17 | 21 | 9X-6458 | Hard Washer |
| 18 | 1 | 5P-3975 | Rubber Lubricant |
| 19 | 1 | Loctite C5A copper anti-seize | Anti-seize thread compound |
| Effective Serial Numbers | |
| 3516 HD | S/N:TKR00202-UP S/N:TKS00212-UP S/N:TKT00206-UP S/N:TKY00224-UP |
| 3512C HD | S/N:T3W202-UP |
Disassembly of the inlet Air Pipes
- Remove band clamp (4) from bellows assembly (7) and discard of the clamps.
 | |
| Illustration 1 | g03342753 |
Inlet air piping and brackets (1) 122-3374 Elbow (3) 373-3702 Air Pipe (4) 243-2975 Band Clamp (5) 396-3369 Bracket (6) 112-1567 Strap (7) 344-0079 Bellows As (8) 396-3370 Bracket (9) 373-7303 Air Pipe | |
- Remove bolts (11) from air inlet tubes that connect to the air inlet cover and discard hardware.
 | |
| Illustration 2 | g03343084 |
Inlet air piping (11) 0S-1588 Bolt (12) 0S-1594 Bolt (13) 109-7411 O-Ring Seal (14) 5M-2894 Hard Washer (15) 6V-5103 O-Ring Seal (16) 9S-8752 Full Nut (17) 9X-6458 Hard Washer | |
- Remove bolts (12) from the bracket assemblies (5), and (8) and discard of hardware.
- Remove the air inlet tubes.
- Remove the air inlet tube bracket.
- Remove the bellow assembly.
Assembly of the air inlet pipes
 | |
| Illustration 3 | g03342743 |
Inlet air elbows (1) 122-3374 Elbow (2) 8T-6764 Pipe Plug | |
- Install plug (2) into air inlet elbows (1) .
- Assemble O-ring (15) to air inlet pipes (3), and (9) .
- Lubricate the bore of the air inlet pipes with 5P-3975 Rubber Lubricant .
- Attach the air inlet pipes to air inlet elbow (1) using strap (6), hand tighten with bolts (12) and washers (17) .
- Connect bellows assembly (7) to the turbo, and tighten with V-band clamps (4) .
Note: Ensure that bellows assembly is installed for proper flow direction as indicated by an arrow on the assembly.
Note: Lubricate threads, bearing surfaces, and inside diameter of clamps before assembly with Loctite C5A copper anti-seize.
- Install O-rings (13) into both air inlet elbows.
- Assemble bracket (8) to air inlet pipe (9) and hand tighten with bolts (12), washers (17), and nut (16) .
- Assemble bracket (8) to engine and hand tighten with bolts (12), and washers (17) .
- Assemble bracket (5) to air inlet pipe (3) and hand tighten with bolts (12), washers (17), and nut (16) .
- Assemble bracket (5) to engine and hand tighten with bolts (12), and washers (17) .
- Assemble both air inlet elbows (1) to the air inlet cover and hand tighten with bolts (11), and washers (14) .
- Connect the air inlet pipes to the turbocharger using bellow assembly (7). Fasten with V-band clamps (4) to 7.5 ± 1 N·m (6 ±1lb ft).
- Tighten and torque all bolts and nuts for elbows, straps, and brackets.