How To Rebuild A Turbo MHI TD05h big 16g Turbo Inspection & Standard Rebuild
16g Rebuild Guide!!! Rebuild Your TD05 16g Turbo Yourself
Are you one of those people that just enjoy learning, or someone that wants to save a few dollars and still learn along the way? Do you have a TD05H MHI 16g that needs inspected or rebuilt? Are you unsure sure how to go about doing this yourself? Are you just totally lost about what to do? Then you have come to the right place!!!
If you are someone that cannot justify spending over $1000 for a new turbo, just like the one in front of you, then please continue to read. I am going to explain how you can rebuild one of these turbos for a fraction of the cost to buy one new. I will cover all of the parts included in a full TD05H MHI 16g turbo.
***Note: I will be explaining this process in detailed pictures, with the intentions of using a new turbine shaft/wheel and compressor wheel.***
Ok, now take deep breath and exhale slowly, this is very easy if you take your time!!!
The following tools are required for disassembly and reassembly of the TD05H MHI Big 16g:
Needle nose pliers
10mm socket (I prefer tall sockets)
12mm socket (I prefer tall sockets)
1/2in socket (I prefer tall sockets) **optional, depends on actuator bolts**
Small flat-head screwdriver
Scribe tools (great for tiny areas)
Engine assembly lube (for reassembly only)
Thread lock (for compressor wheel nut)
Caliper (optional) **great tool for measuring wheels**
In my opinion, the tools listed are the easiest tools to use for this job. You will not need any other tools. You may need a couple rags handy though.
Disassembly!!! - Picture Descriptions; In Order!!!Click thumbnail to view full-size
Inspection!!! - Why You Should Do It!!!
The number one reason for doing an inspection after disassembling a turbo is to try to figure out why it has problems or has failed all together. Inspecting the turbo parts can aslo tell a person what may be going on inside the motor of their vehicle. Take two of the same turbos. One turbo could live for 100,000 miles plus but the same turbo on a different vehicle may only live for 5 minutes. This is because of many factors. I am not going to get into full detail about how the turbo is linked to the motor right now but instead, I will show you a few causes of turbo failure.
Problem and Failure Causes!!! - Detailed Pictures Provide Information!!!Click thumbnail to view full-size
Cleaning!!! - Clean Very Well!!!
The cleaning process is just as important as the assembly process. If the turbo and parts are not clean, then it is likely that you will have premature turbo failure. I highly suggest fully degreasing very well until all of the grit and grime is gone. You will have stains of course but as long as the turbo is free of oils and dirt before you start the assembly process, then you should be golden.
There are many ways to clean your turbo parts and media blasting seems to be the most popular but not everyone can do that at home. You can use your basic engine degreaser, elbow grease, wire brushes, scribe tools, and some brake/carb/throttle body fluid. Take your time and try to enjoy the last step before assembly. And look at it this way. You're saving quite a bit of money and learning at the same time by doing this yourself.
After you're done cleaning, you will end up with something like the picture. Notice that I have already put the big (orange) o-ring around the center section on the compressor side.
Rebuild Kit!!! - What Should Be Included!!!
This is a common rebuild kit for the TD05H Big 16g, it consist of the following parts:
1- O-ring insert
2- Thrust Bearing
3- Piston/Shaft Ring Seal
4- Snap Ring
5- 2x-Journal Bearing
6- 2x-Shaft Nuts (one for each direction)
7- Vband Bolt & Nut
8- Compressor Side Piston Ring
10- Thrust Ring
11- Oil deflector
12- Superback Insert
13- Top Hat
14- Compressor Housing O-ring
15- Oil Return Gasket
16- TD05H Turbine Shaft/Wheel
Item #16 is not in the picture because it does not come with the rebuild kit. I included it because I always suggest replacing the old turbine shaft with a new one when doing a complete rebuild.
I also did not include a compressor wheel in the items because there are many different styles to chose from but I will explain how to do this rebuild with a big 16g compressor wheel.
Assembly!!! - Take Your Time!!!Click thumbnail to view full-size
Rebuilt and Upgraded Products!!! - Eye Candy and 20g Upgrades I've Done!!!Click thumbnail to view full-size
Products Tried and Proven!!!
These are just a few products I have tried and work well. I also added a couple extra listing for upgrade choices from the 16g to the 20g.