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tuurbo
Joined: 08 Aug 2007 Posts: 1446 Location: East Windsor, New Jersey
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Posted: Sun Jan 04, 2009 6:40 am Post subject: Turbocharger rebuild |
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Finally starting to tear it down. Here's my log.
Steps to disembowel the turbocharger:
1. Mark a the line up notch using a Dremel tool for the exhaust and input housings
2. Spray down and clean up the unit using WD40 to start. Wipe off anything wipe-off-able.
3. Take copious pictures to ensure what is done can be reassembled fully.
4. Refer to Instructions where needed.
5. Here's the unit cleaned using a spray lubricant called ReleaseAll to lubricate and clean the unit before teardown.
Sorry for the picture quality.
6. Planning - I'll be cleaning the outer tomorrow when I can spare the time - just get everything. Clean out the workspace fully. _________________ 1980 924 turbo, MSD, Meth. Inj, otherwise stock. |
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tuurbo
Joined: 08 Aug 2007 Posts: 1446 Location: East Windsor, New Jersey
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Posted: Sun Jan 04, 2009 12:35 pm Post subject: |
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Now you're ready:
_________________ 1980 924 turbo, MSD, Meth. Inj, otherwise stock. |
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Rasta Monsta
Joined: 12 Jul 2006 Posts: 11724 Location: PacNW
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Posted: Mon Jan 05, 2009 3:33 am Post subject: |
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Wrong fingers. . .rookie.
Are you planning to send the rotating assembly off for balancing? _________________ Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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Joes924Racer
Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Wed Mar 10, 2010 5:31 pm Post subject: |
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What happend you didnt finish. _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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931Owner
Joined: 14 Feb 2009 Posts: 352 Location: Chicago NW Suburbs
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Posted: Mon Apr 05, 2010 3:04 pm Post subject: |
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Can you even get a rebuild kit? _________________ 1980 Turbo
-too many cars and too many motobikes |
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Joes924Racer
Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Tue Apr 06, 2010 2:08 am Post subject: |
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Yea pretty much just a seal kit I think..im hopin
to avoid it though I imagine ill get one. At least gaskets and some bolts.
just depends. Maybe I can find a turbo check out place. Main thing is spinnability and sideplay. and signs of high heat & leakage. How 2 check for heat is a good one. Guess discolored metal though & if the exhaust header is cracked theres heat issues warranting a seal replacement for good measure which is a rebuild.. since your there if you can find a air spinner do that too. Its not cheap
Im guessen though for all new parts
400.00 500.00. you want a reputabuble shop to or it wont last and will leak. I dont know what Ill do with mine.. there a couple of friends I can take it too for advice. They build porsches. After that Id pick a shop. _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.
Last edited by Joes924Racer on Wed Apr 07, 2010 1:33 pm; edited 1 time in total |
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931Owner
Joined: 14 Feb 2009 Posts: 352 Location: Chicago NW Suburbs
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Joes924Racer
Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Wed Apr 07, 2010 4:32 am Post subject: |
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Gold mine. nice of you to put it in the chest. Now its a treasure chest.
Are you waiting on a kit so you can give us ayour howto.. we want it. _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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931Owner
Joined: 14 Feb 2009 Posts: 352 Location: Chicago NW Suburbs
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Posted: Wed Apr 07, 2010 4:43 am Post subject: |
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I'll check for the state of the turbo when I get it out. I do remember seeing puffs of blue smoke in the mirror (though a little) under acceleration when we purchased it.
The rebuild seems easy enough to do so I'll probably give it a go and document it. Seems a $100 kit is cheaper than $600 for a rebuild. _________________ 1980 Turbo
-too many cars and too many motobikes |
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ideola
Joined: 01 Oct 2004 Posts: 15548 Location: Spring Lake MI
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Posted: Wed Apr 07, 2010 4:57 am Post subject: |
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There's more to a proper rebuild than a seal kit...
...and you can get a rebuild done by Majestic for ~$350 or so, provided the core components don't require any major repairs. _________________ erstwhile owner of just about every 924 variant ever made |
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Joes924Racer
Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Wed Apr 07, 2010 1:36 pm Post subject: |
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yea i know spinability of the fan... sideplay worn out bushings
and a worn out fan. Dont turbos get plugged up to Ive heard the term coked up. _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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Rasta Monsta
Joined: 12 Jul 2006 Posts: 11724 Location: PacNW
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Posted: Wed Apr 07, 2010 1:44 pm Post subject: |
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yeah just give er a twirl
twirls good runs good
boost is speed speed is fun
gitter done
and don't worry about bein coked up
haters will never understand _________________ Toofah King Bad
- WeiBe (1987 924S 2.5t) - 931 S3
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fiat22turbo
Joined: 18 Jan 2006 Posts: 4040 Location: Portland, OR
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Posted: Wed Apr 07, 2010 1:47 pm Post subject: |
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Yes the oil overheats, cooks and turns to carbon and plugs up the oil passages. Usually this happens because people shut the turbo down without letting it cool-off, running cheap oil, overheating the oil and/or not changing it often enough.
Basically turbo cars are perfectly reliable provided you treat them as performance engines, not some slant 6 in 'pa's old pick em up truck. That means, changing the oil, leaks, paying attention to the quality of the fuel you use, etc.
Later water-cooled turbo center sections helped cool the turbos after they were shutdown (and to a lesser extent while they were running) because the water will percolate and circulate while the cast iron transfers the heat into the water. A small coolant pump that runs after shut down for a little bit can help a lot with reducing hot spots and improving cooling efficiency across the board. _________________ Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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Joes924Racer
Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Wed Apr 07, 2010 3:42 pm Post subject: |
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Yup that was my problem i always treated my NA like it had
a performance engine. I was always missen something.. it was
turbo. _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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DZGunner
Joined: 18 Nov 2014 Posts: 191 Location: Great white north
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Posted: Fri Jan 16, 2015 6:31 pm Post subject: |
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I know this post is from years ago but was this ever documented with pictures? I'm hoping to do this soon.
Also if anyone knows, where does the little elbow piece go to on the car? i mean it seems like it should only carry air as its nothing to do with oil, hoe ever my rubber elbow piece is cracked and leaking what appears to be fresh oil. i've only recently got the car from someone else so idk what happened or what this indicates, any input? I'm just wondering if this is a sign i need a rebuild or something else is going on, thanks |
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