Absorbantnut's '87 325is

[AbsorbantNut]

As soon as these came in the mail I wrapped up the bearing install


Put the new inner dust cap on...


Tapped on the new bearing with the socket


Studs back in and loctite'd as well as the new collar nut


Then I put the wheel back on, tightened it to 215 ft lbs, and punched in the crush section of the nut. That was that!


And it was finally back on the ground after that!


Decided that the turbo needed a little more air flow, so I temporarily hooked this up. Just some ducting connected to a brake duct


The I figured out why I couldn't boost past 6psi. My MBC was hooked up incorrectly. This sticker was placed backwards:hitler: There's a ball and spring placed inside the T fitting to act as a restrictor. I had it flipped around before, so I was bypassing the MBC lol.


And this is the diagram I followed

[AbsorbantNut]

Turbo needs a rebuild. I took off the intake afm/filter and checked the shaft for play, and there was some:eeek: Oh well, it's a 23 year old turbo with 100,000 plus miles, I'm surprised it held up through all it did, plus a whole track weekend.


So I ordered a eBay rebuild kit once I figured out that I have a TB2543 Garrett. It's supposed to be here next Monday, so I'll probably disassemble the turbo this week & rebuild it when the kit comes!

[dillon7]

ahhhh I love this so much!

If you want to speed up the rust mix hydrogen peroxide, vinegar and salt. It pretty much instantly rusts the car as long as its on bare metal. I just did it on my hood and it turned out great except for the couple stupid spots I didn't get all the primer off...:curse:

[mr2peak]

Awesome Pic, you should have rubbed that baby down with olive oil.

http://i560.photobucket.com/albums/ss41/sigsaucer647/7536925E-E51C-4B6A-817B-494388FD3B08-1697-0000033B7C2682B2.jpg

[mr2peak]

Awesome Pic, you should have rubbed that baby down with olive oil.

[TheTacoMan]

I like that no rust, why u rust.

Paint too cool?

[MF DOOM]

Love what youve done with it. A purist would disagree but you resurrected that thing

[AbsorbantNut]

ahhhh I love this so much!

If you want to speed up the rust mix hydrogen peroxide, vinegar and salt. It pretty much instantly rusts the car as long as its on bare metal. I just did it on my hood and it turned out great except for the couple stupid spots I didn't get all the primer off...:curse:

I'll have to give that a shot! Thanks:p

Awesome Pic, you should have rubbed that baby down with olive oil.

I like that no rust, why u rust.

Paint too cool?

I was thinking about keeping it like that with the raw metal, maybe add a pinstripe or something. I wanna see it 100% rusted first though:D

Love what youve done with it. A purist would disagree but you resurrected that thing

Glad to hear some people like it!

In other news, I have a .48/.64 Turbo, bigger than previously thought:mrgreen:

[AbsorbantNut]

Okay, with the turbo rebuild kit in the mail, I figured it's time to start removing the turbo and prepping it!



I noticed that the crappy butt connectors I had used to wire up the AFM had come apart. Everything will be soldered/heatshrinked as soon as I get my soldering iron back from my friend who needed it for his class.



Ariel view of today's work space



It's out fifteen minutes later! I've gotten pretty quick after having to change the gasket so many times:weak:



The Culprit


Wrapped everything up so mother nature can't wreak havoc


My interestingly shaped volvo exhaust housing


The reason why I blow so many gaskets:letitout: I'm gonna toss the housing on a belt sander when I disassemble it to make a fresh, FLAT mating surface



And the reason why it all had to come off....


Shaft Play:curse:

[JCarp90]

Just read your whole thread. Wow. I love this car.

[TheTacoMan]

I'll have to give that a shot! Thanks:p




I was thinking about keeping it like that with the raw metal, maybe add a pinstripe or something. I wanna see it 100% rusted first though:D



Glad to hear some people like it!

In other news, I have a .48/.64 Turbo, bigger than previously thought:mrgreen:

I can dig that :up:

[Cabriolet]

since i was invited to trash talk in here. make sure all of your friends get tetanus shots.

but ya 99% of the time im a purest jerk but i do digg the "i dont give a shit body" look

[AbsorbantNut]

Just read your whole thread. Wow. I love this car.

Thanks bud:up:

since i was invited to trash talk in here. make sure all of your friends get tetanus shots.

but ya 99% of the time im a purest jerk but i do digg the "i dont give a shit body" look

Hahaha, thanks for the tip lol.

My ebay t25 rebuild kit finally came in the mail


So before I took the turbo apart I figured it would be a good idea to mark the current locations of the housings.










Then I took off the exhaust housing. It came off with relative ease, probably because last time I took it off I chased the threads with a tap



And this is how the car has been sitting the past few days

[AbsorbantNut]

Initially when I tried to remove the compressor (intake) housing I didn't have a good set of snap ring pliers, so I borrowed a friends. This is what happened


Needless to say I already bought him some new ones. I did a bit more searching on the internet and found that some large 45 degree needle nose pliers work great. Off to Harbor Freight I went!



The wheels are balances, so before you remove them you want to mark their location relative to the shaft. I sharpied the wheel & nut, and then scribed the shaft with a pick. Here's some pictures so you guys can get an idea if you decide to try this. I put one dash on one side and then two dashes on the other. I figured 3 reference points would be accurate enough when I go to put it all back together.








Then it came time to remove the wheel so I can finally start this rebuild. The front nut(compressor side) is a 12 point 8 mm left hand thread. The exhaust wheel is permanently attached to the shaft(I believe) and has a rounded triangle nub which I attached vice grips to as shown.


After some persuasion, the compressor wheel nut came off




Here's what a 23 year old CHRA (Center Hub Rotating Assembly) dynamic seal looks like. There are two types of seals in a turbo, carbon and dynamic.



Then I had the absolute worst time getting the shaft out. I flipped the 12 point nut upside down and threaded it on partially & smacked it with the wooden butt of my hammer while supporting the whole CHRA. Not gonna lie, this was easily the worst part so far.



Here's a picture of the exhaust side of the CHRA.


Then I took out the snap ring that holds the dynamic seal in place. However, for the life of me I cannot get this darn thing to budge. There's not really any room to fit a small flat head or pick between the seal & housing to pry it out. After watching some videos they advise to place a rag on the ground and GENTLY smack the housing against it. However, this hasn't worked for me yet.


Any tips from someone who has done this?

[Pootis]

Try giving it a little heat that should free it up