TRD S/C Issues

[navylife59]

*** This thread is for all TRD S/C owners. There is a definate problem that needs to be addressed as a TSB and not a "fix it as it breaks" policy. If you suffer a different issue, please post. This is not a discussion thread, but a research tool.***

In speaking with a "soon to be authorized" TRD S/C mod/repair facility, the owner stated that the TRD supplied horseshoe brackets are the cause of all the TRD woes; from the broken mounting bracket, the blown end seal, and the worn shaft end bearings, to the complete failure of the torque shaft. It causes a misalignment of the torque shaft that creates undue stresses. This is a design flaw that should be addressed. I have been expecting an e-mail from that company listing their out-of-warranty repairs and update mods. So far, the pricing ain't too pretty.

From what I can tell, the 2008 and up S/C's were redesigned to fix these flaws. This would explain the delay in offering for the '08 models. Vortech lays the blame squarely on TRD as the pulley torque shaft tube is soley their design. Of course, TRD wants to push it on Vortech.

To better serve our TRD S/C members, I am going to create a thread in the Knowledge Base section to track these issues. If there is enough commonality in the problems, then we can address these directly to Toyota Corporate to offer a TSB to update all previous year models to the better and safer design. Why should we have to pay good money to fix TRD's engineering flaws? We will need the proof so post up only if the problem was yours.



Kit Contents
Item Qty Description
1 1 Supercharger Main Assembly

Torque Shaft end seal o-ring failure

2 1 Bolt, Flange Head 10x1.25x25 x 14WF
(captured)

Torque Shaft end bearing excessive wear

3 1 Key, 3/16” Square by 7/8” long
4 1 Pulley, 7-Groove SC Drive
5 1 Retainer Cup, Drive Pulley
6 1 Retainer Washer, Drive Pulley
7 1 Bolt, 3/8-24 x 1 x 9/16 WF, Gr.8 Drive Pulley
8 1 Cap, Tamper Proof Plastic TRD
9 2 Idler Pulleys

Idler Pulley bearing excessive wear

10 1 Bracket, Cast Aluminum Transmission Mount

S/C mounting bracket failure

11 3 Bolts, 3/8-16 UNC x 1”x 5/16 Allen WF
12 2 Bolts, SHCS 12 x 1.25 x 80 x 10mm AllenWF
13 2 Shim, 0.005” Drive Pulley
14 2 Shim, 0.010” Drive Pulley
15 2 Shim, 0.025” Drive Pulley
16 1 Bolt, Button Head 10x1.25x40x6mmAllenWF
17 2 Spacers, Idler Pulley Outer
18 2 Spacers, Idler Pulley Inner
19 2 Bolts, SHCS 10 x 1.50 x 70 x 8mm Allen WF

Idler Pulley mounting bolts corrosion

20 2 Nuts, 10 x 1.5, 6Pt, Self Locking 17mm WF
21 1 Bolt, Hi-Strength 12-Pt Crank Bolt
w/captured washer 14 x 1.5 x 45 x 19WF
22 1 Bracket, Lower Airbox
23 1 Intake Boot, Fender to Airbox
24 1 Airbox, Lower TRD
25 3 Rubber Grommets, Airbox Lower
26 3 Metal Spacers, Airbox Lower
27 1 Air Filter 17801-03010
28 1 TRD HC Filter/Trap
29 1 Air Inlet “Trumpet” Diffuser
30 1 Hose, Airbox to SC intake “Tuba”
31 1 Intake Manifold, Cast Aluminum TRD
32 1 O-Ring for SC Inlet Manifold 3.237 “ ID
33 3 Bolts, SHCS 6 x 1.0 x 16 x 5 mm Allen WF
34 3 Flat Washers, 6mm
35 1 Hose Clamp 70-90 mm
36 3 Hose Clamps 60-80 mm
37 3 Hose Clamps 25-40 mm
38 1 Hose, SC to Throttle Body
39 1 Bypass Valve, Bosch

BPV boost leak

40 1 Hose, Bypass to SC Intake
41 1 Hose, 3/16” vacuum, Bypass to Throttle Body
16” long
42 1 T fitting, 1/4 x 1/4 x 3/16 vacuum line
43 1 Hose, VSV vacuum 7mm x 12 mm x 250mm
44 1 VSV Rubber mounting bracket
45 1 Fuel Supply Line, TRD
46 1 Plastic Clamp, Fuel Supply Line 23842-28010
47 4 Fuel Injectors, TRD
48 4 Spark Plugs, TRD Denso K22PR-U
49 1 Belt, Serpentine Drive 7PK2275
50 1 Heat Shield, TRD modified
51 1 71°C (160°F) Thermostat
52 1 Fitting, Hexagonal “T” Oil Feed
53 1 Hose Assy., Blue Parker Push Loc Oil Feed
54 1 Fitting, Oil Feed 1/8”MNPT x dash 4 37°M
AN
55 1 Hose Assy., Oil Return Hard Line
56 2 Hose Clamps, Oil Return Line, Spring Preload
57 1 Bolt, 8 x 1.25 x 16 x 13WF, Oil Return Line
58 1 Washer, 8 mm Flat, Oil Return Line
59 1 Crimp Nut, 8 x 1.25 x 13 mm WF, Oil Return
60 1 Oil Pan w/ return tube braze-in
61 1 Bracket, AC Line Front
62 1 Bracket, AC Line Rear
63 2 Bolts, Flange Head 6 x 1.0 x 12 for AC line
brackets
64 1 Hose, Upper Engine Radiator
65 1 Wire Loom ½ “ 8 inch length
66 1 Wire Loom ¾” 7 inch length
67 2 Zip Ty-Wrap, Small
68 4 Zip Ty-Wrap, 7 inch/Medium TY525MX
69 3 Zip Ty-Wrap, OE anchor style, 82711-16830
70 1 CPS Extension Wire
71 1 Adell Clamp, dash 12, Galv. Steel w/ rubber
72 1 ECM Map Module
73 2 ECM Decal
74 1 Premium Fuel Only Decals (1 pair)
75 1 Belt Routing Label
76 1 Tune-Up Label
77 2 EO Label
78 3 Badge, Supercharged, 00602-17620-EMB
79 3 Badge, TRD, 00602-17620-TRD
80 1 Warranty Card, TRD Supercharger
81 1 Mirror Hanger
82 1 Registration Card
83 1 Installation Instructions
84 1 Thermostat Gasket, 16325-28010

[navylife59]

Please post in this format. If you have more than one issue, then do it for every instance but in the same post please.


I will start this off:

Model: 2005
Miles on S/C at Discovery: 30K
Prob: Cracked supercharger compressor mounting bracket.
Cause: Attributed by TRD to be improper torque sequence by installer.
Repair: Newly designed bracket.
Warranty: Not for me, had way too many problems with the dealer install to

let them touch my baby again.

Model: 2005
Miles on S/C at Discovery: 21K
Prob: Corrosion, Idler Pulley mounting bolts.
Cause: Lack of thread sealant. Found on other bolts.
Repair: Remove corrosion and have bolts re-electroplated. Use thread sealer.

Note: Close tolerance with pulley bushing may make chrome plating unfeasible.

Warranty: Not considered warrantied by Dealer or TRD.

Model 2005:
Miles on S/C at Discovery: 21K
Prob: Excessive bearing wearing, Idler Pulleys
Cause: Low speed rated bearings.
Repair: Replace with new Idler Pulleys.
Warranty: Not considered warrantied by Dealer or TRD. (this may have

changed)

[StreetracerJay]

Model 2007 S/C tc.
Miles on S/C at Discovery: 21134
Prob: Excessive bearing wear. Idler Pulley squealing bad!
Cause: bearing went bad. Squealed really load and very annoying!
Repair: Replaced new Idler puelly and new belt.
Warranty: toyota did it for free! Hope nothing else go wrong!