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Old 05-21-2011, 03:07 AM   #1
mowgli29
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Default VF34: COMPLETE teardown and re-assembly. PICS!!

Sorry if this is less than impressive to people out there...but I had always wondered what the difference between the ball-bearingVF34 and the other "normal" journal bearing VFs was. I had never heard of or seen anyone take apart a vf34 before.

So, long story short, I gave my P&P housings to a friend, and now I'm doing it again before I put the turbo back on. I got a little curious when taking the housings off....and, well, couldn't help myself.

Now I see why it's "not rebuildable," but its only because there aren't any rebuild kits available with new ball bearings.... although it has also become obvious to me that other VFs (journal bearing VFs: 30, 37, 39, etc.) ARE rebuildable, so people need to stop saying they're not!!

For reference, here's a "how to" rebuild on journal bearing VF turbos:http://www.mx6.com/forums/1g-faq-for...build-how.html

Part I (of III) of assembling the turbo:

...and Part II:

...Finally, Part III:


Anyway, pics:

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Last edited by mowgli29; 06-11-2011 at 02:29 AM.
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Old 05-21-2011, 03:08 AM   #2
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Old 05-21-2011, 03:11 AM   #3
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Old 05-21-2011, 03:13 AM   #4
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Old 05-21-2011, 03:17 AM   #5
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Old 05-21-2011, 09:13 PM   #6
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I dig it. I love seeing the insides of the working parts. Cant wait for the video.
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Old 05-22-2011, 05:33 PM   #7
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great pics, best ihi bb turbo teardown pics ive seen.


any tips for separating the compressor housing from the turbo?
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Old 05-22-2011, 10:52 PM   #8
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We say they are not rebuildable because:

1. The rebuild kits weren't available until recently
2. 90% of NASIOC users can't rotate their tires let alone do something 1% as complicated as rebuilding a turbo.....have you SEEN how many threads there are on simply jacking up a Subaru or how to install a catback???????
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Old 05-22-2011, 10:52 PM   #9
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We say they are not rebuildable because:

1. The rebuild kits weren't available until recently
2. 90% of NASIOC users can't rotate their tires let alone do something 1% as complicated as rebuilding a turbo.....have you SEEN how many threads there are on simply jacking up a Subaru or how to install a catback???????
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Old 05-23-2011, 12:20 AM   #10
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Where can you get a rebuild kit for VF34? I've never seen a rebuild kit for VF34 before.
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Old 05-23-2011, 01:50 AM   #11
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Quote:
Originally Posted by txl146 View Post
Where can you get a rebuild kit for VF34? I've never seen a rebuild kit for VF34 before.
You can't, at least not that I'm aware of. Unabomber and I are both referring to rebuild kits for *other* VF turbos.

Though I have to wonder if there's a suitable replacement bearing out there that would work, although not designed specifically for a turbo. That, or perhaps a machine shop could make/modify some new bearings for a 34.

Regardless, I'm not looking for new bearings (yet, lol) as mine seem to be perfectly healthy!
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Old 05-23-2011, 01:55 AM   #12
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Quote:
Originally Posted by Unabomber View Post
We say they are not rebuildable because:

1. The rebuild kits weren't available until recently
Oic, hadn't ever looked much until recently.
Quote:
Originally Posted by Unabomber View Post
2. 90% of NASIOC users can't rotate their tires let alone do something 1% as complicated as rebuilding a turbo.....have you SEEN how many threads there are on simply jacking up a Subaru or how to install a catback???????
I tend to do two things on NASIOC: research technical things and browse the classifieds. Perhaps that's why I was not aware of this. I hope that's an exaggeration, btw... either way:
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Old 05-23-2011, 01:58 AM   #13
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Quote:
Originally Posted by fastwrx25 View Post
great pics, best ihi bb turbo teardown pics ive seen.


any tips for separating the compressor housing from the turbo?
Thanks! I had not ever seen ANY of an IHI bb turbo...thus, I tore it open!

I had tried once before to get the compressor housing off...and I think perhaps I was just too much of a panzy. After I took the bolts off the back, a few swift whacks with a 3lb sledge knocked it loose, and I gave it some love taps to finesse it free. (I was careful not to damage the wheel!)

Quote:
Originally Posted by rydog View Post
I dig it. I love seeing the insides of the working parts. Cant wait for the video.
Haha, thanks! Should be done soon... I need to get it balanced this week.

****, I should have already assembled it so I can bring it to the turbo shop tomorrow! doh!
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Old 05-23-2011, 01:04 PM   #14
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Quote:
Originally Posted by mowgli29 View Post
I tend to do two things on NASIOC: research technical things and browse the classifieds. Perhaps that's why I was not aware of this. I hope that's an exaggeration, btw... either way:
Nope, God's truth There's some stunningly dim people here. They ask about how to remove a stuck bolt on day one and on day two get super pissed when I tell them they need to have a professional rebuild their transmission. People who do advanced stuff like engines, trannys, and turbos do like you......just post their results as they have to ask no questions. Stuff that costs $XXXX to fix when you goof should be trusted to pros or people who don't need help and sadly I get hollered at for that thought process.
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Old 05-23-2011, 03:58 PM   #15
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never seen the guts before, nice post
doesn't it need to be rebalanced @ uber crazy RPMs after everything is put together?
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Old 05-25-2011, 06:25 PM   #16
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Quote:
Originally Posted by Unabomber View Post
Nope, God's truth There's some stunningly dim people here. They ask about how to remove a stuck bolt on day one and on day two get super pissed when I tell them they need to have a professional rebuild their transmission. People who do advanced stuff like engines, trannys, and turbos do like you......just post their results as they have to ask no questions. Stuff that costs $XXXX to fix when you goof should be trusted to pros or people who don't need help and sadly I get hollered at for that thought process.
Hahaha, I have to agree with your thinking there. I remember when I was one to ask about removing stuck bolts and such...you know, when I was 16, lol. Boy how time flies...

Quote:
Originally Posted by Hyper View Post
never seen the guts before, nice post
doesn't it need to be rebalanced @ uber crazy RPMs after everything is put together?
Thanks.
And yessssssir! I meant to scribe the shaft/compressor wheel so I could just line them up on reassembly...but I forgot.

I've been talking to Chris at CRT Technologies in St. Louis about balancing it. I wanted to drop it off Monday and have it back by now...but that didn't work out, lol. I should be dropping it off tomorrow and getting it back early next week. Apparently, they're working on some new custom billet wheels for big Diesel turbos right now, and obviously that gets done before my turbo gets balanced, lol. Anyway, he said $50 for a balance, which isn't too bad IMO, or $100 for inspection, assembly, and balance. I'm opting for the balance only because I wanted to make a video of assembling it myself!

Here's part I of III:
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Old 05-25-2011, 06:51 PM   #17
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Old 06-11-2011, 02:41 AM   #18
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