After about 7-8 years of running an IHI VF28 (replacing the previous TD04) I thought it was about time I had a little upgrade.
I couldn't justify spending £850 - £1300+ on a new Turbo, so thought I would have a go at updating a used TD05.
With the help of other fellow DIY'ers and YouTube I felt confident that this was a job worth tackling.
When you break a turbo down into it's piece parts it makes even more sense, and I struggle to understand why Turbo chargers are so expensive.
It's shocking to think that most dealers will replace a complete turbo when an oil seal fails !!!!
I acquired an early 1993-1996 WRX TD05H 90 degree's turbo, for £58.
This was sold as a good runner, and reported to have recently produced 287BHP.
The plan for this is as follows :
TD05 18G Front Entry Compressor Housing
TD05 18G 11 Blade Billet Compressor wheel
Porting (option, I need to look into this further)
Full Overhaul Kit inc. New bearings and Seals
New Water/Oil Kit
TD05H (16G), 90 Degree Entry :
Disassemble in the following order, using :
19mm spanner, to remove Water Pipes
10mm Socket, to remove Oil Drain Pipe
Small screwdriver to remove Wastegate Circlip
12mm Socket, to remove Actuator
10mm Socket, to remove Turbo clamp/band
Hide Hammer or Plastic Hammer, to remove Exhaust Housing from Turbo Cartridge
Large Circlip pliers (or long nose pliers), to remove Compressor Housing Circlip
You will then have the following :
Turbo Cartridge :
Checking Shaft Play / End Float :
Ignore the scratching sound in these video's when the turbo is spun. That is just the Exhaust Turbine wheel catching on a cover that floats loose once the housings are split.
Removal of Compressor Wheel :
10mm Multi-point socket
12mm Multi-point socket
Note : The shaft may be a Clockwise or Anti-Clockwise thread, so take care when loosening
Another check of the Shaft Play / End Float
Considering the potential age of this turbo it doesn't look too bad.
It could probably be left alone, but for the sake of $59 for a overhaul kit, it's worth rebuilding
Holding the Turbine wheel and giving a slight tug will release the whole wheel/shaft assembly.
Here you can see one of the bearings which is quite a simple brass sleeve with oil holes through it
Compressor wheel cleaned and weighed (50g), to compare against the 18G when it arrives.
Oliver has now nicked this for his Bedroom, for his shelf of shiny car part !!!!!!
That's it for the moment.
The cartridge will remain in one piece until the overhaul kit arrive
In the meantime I hope to get the Exhaust housing bead blasted at work.
(To be Continued)