Okay, it's been more than a couple of months. It's time to show some progress.
A while back, I mentioned that I had to change the seals (actually only one seal) on my turbo from a dynamic seal, to a carbon seal.
The draw-through turbo setup actually pulls vacuum when the throttle is closed. This sucks oil past the seal in the turbo, and turns your engine into a bug fogger. The fix is to use a different seal on draw-through turbo setups.
I took the turbo apart, and took some pictures for anyone interested.
The dynamic seal is basically like a piston ring. The thing in the picture goes into that hole, and it spins with the turbo shaft. That little split-ring seal is supposed to keep the oil in.
Here it is on the shaft, with the bearing retainer and such. All of that gets tightened down with the compressor wheel on top. The pieces on the counter top are for the new style seal.
This is the new seal. What they do, is take a new plate, weld the hole up, and machine it out to fit the different seal. It may look like a lip seal, but it's not.
This is how it goes back together. The carbon seal rides against the smooth face of that spacer.
Now it's all back together. If anyone is doing turbo stuff, and needs parts, try
www.lowbugget.com. They were honest and fair with me, not very timely, but honest and fair.
I haven't test run it yet, to make sure it doesn't smoke. I will, as soon as I get the fuel tank back on. I took it off to redo the rear suspension.
This was before:
I'm getting really sick and tired of stick welding. It works fine, until you have poor fitment, or tight spaces, or places that are impossible to chip or grind. After 15 years of using an AC stick welder for everything, I've gotta get a mig. That won't happen until after this project is done though.
What I'm trying to say is, there are some ugly welds on those brackets.