Rebuilding my T28 BB Turbo - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

2plus4plus0eq6 · 05-05-2012, 10:25 PM

Hey there,

I swapped in a sr20 from a s14 into my car and realized my oil seals are blown in my turbo since I had oil leaking into my intercooler.

From what I have been reading:

A. It is expensive to rebuild T28 Ball Bearing turbos and pretty much not worth it.

B. Rebuid Kits don't exist for ball bearing turbos. Only for journal bearing

So my question is:

If the seals on my turbo are blown, can I just replace the seals without messing with the bearings. I think the bearings are just in a cartridge..

And if thats possible, where do I get the seals from. Get them from a rebuild kit for a journal bearing turbo?

Thanks for any help.

cotbu · 05-06-2012, 08:21 AM

Ball bearing turbos, are complicated to rebuild. The best solution is buy a replacement CHRA from a Garrett distributor. Then you'll have a brand new turbo for about $350US.

2plus4plus0eq6 · 05-06-2012, 10:12 AM

Thats a really great solution. Thanks. I don't have to mess with taking a lot of the internals apart. I have a few questions:

If I choose to change the CHRA, is it possible to and easy enough to change to a larger one and possibly get a bigger housing as well if its worth it? I'm still learning the parts so please bare with me. If someone could post a schematic of a T28BB, that would be helpful lol. I couldn't find one.

Would you be able to recommend me an online Garret distributor that could send me what I need to Canada?

Edit: I was looking for a CHRA online, and I can't find one anywhere close to 350 USD. They are about 550-900 which is not really worth it. I can get a new s15 oem turbo for 900ish

Thanks

cotbu · 05-06-2012, 02:43 PM

You need to send in your CHRA as a core. You can go to Garrett's website and look for distributors whom are close to you.

Getting a new CHRA for a turbo you don't have is kinda cheating the system.
And yeah, without a core just buy a new turbo.

2plus4plus0eq6 · 05-06-2012, 07:31 PM

Correct me if I'm wrong but the seals on the turbo that prevent the oil from leaking is on the core and therefore the seals cannot be replaced unless I take apart the core? I am assuming the seals between the housing won't be the problem.

Thank you for all your help

AdamR · 05-06-2012, 10:41 PM

Most of the time the seals aren't bad. It is more often a oil drain problem.

2plus4plus0eq6 · 05-06-2012, 10:49 PM

Really? Could you please elaborate?

JDS Performance · 11-25-2012, 08:45 AM

Well your in luck...I can get you a rebuild kit for your ball bearing turbo
[email protected]

JDS Performance · 11-25-2012, 08:47 AM

Also the Garrett chra exchange is more like $500 plus shipping..but that all depends on the condition of your turbo..if they can't rebuild out it will cost
you alot more

Jesse@PureTurbos · 11-25-2012, 08:54 AM

Old thread.. but we can rebuild BB turbos with seals only. It is complicated, it needs to be completely disassembled to replace the seals. I don't recommend one does it themselves. Best left to Pure Turbos. It will need to be cartridge balanced afterwards too.

Seals only BB rebuild - $300 (includes balancing)

Thanks

JDS Performance · 11-25-2012, 01:33 PM

I can get you a full ball bearing rebuild kit..includes the bearing cartridge, both o-rings, both piston rings (seals), pin (restrictor) for $275 shipped
Then send to anyone for a chra balance for $50

Jesse@PureTurbos · 11-25-2012, 01:47 PM

Call us for the best price in the nation on ANY turbo parts! We can beat anyone's price

05-05-2012, 10:25 PM	#1
2plus4plus0eq6 Zilvia Junkie Join Date: Oct 2005 Location: Canada, BC Posts: 390 Trader Rating: (0) Feedback Score: 0 reviews	Rebuilding my T28 BB Turbo Hey there, I swapped in a sr20 from a s14 into my car and realized my oil seals are blown in my turbo since I had oil leaking into my intercooler. From what I have been reading: A. It is expensive to rebuild T28 Ball Bearing turbos and pretty much not worth it. B. Rebuid Kits don't exist for ball bearing turbos. Only for journal bearing So my question is: If the seals on my turbo are blown, can I just replace the seals without messing with the bearings. I think the bearings are just in a cartridge.. And if thats possible, where do I get the seals from. Get them from a rebuild kit for a journal bearing turbo? Thanks for any help. __________________

05-06-2012, 08:21 AM	#2
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 50 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	Ball bearing turbos, are complicated to rebuild. The best solution is buy a replacement CHRA from a Garrett distributor. Then you'll have a brand new turbo for about $350US. __________________ LoverTechnologies "Half Broken Things!"

05-06-2012, 10:12 AM	#3
2plus4plus0eq6 Zilvia Junkie Join Date: Oct 2005 Location: Canada, BC Posts: 390 Trader Rating: (0) Feedback Score: 0 reviews	Thats a really great solution. Thanks. I don't have to mess with taking a lot of the internals apart. I have a few questions: If I choose to change the CHRA, is it possible to and easy enough to change to a larger one and possibly get a bigger housing as well if its worth it? I'm still learning the parts so please bare with me. If someone could post a schematic of a T28BB, that would be helpful lol. I couldn't find one. Would you be able to recommend me an online Garret distributor that could send me what I need to Canada? Edit: I was looking for a CHRA online, and I can't find one anywhere close to 350 USD. They are about 550-900 which is not really worth it. I can get a new s15 oem turbo for 900ish Thanks __________________ Last edited by 2plus4plus0eq6; 05-06-2012 at 11:22 AM..

05-06-2012, 02:43 PM	#4
cotbu Post Whore! Join Date: Sep 2005 Location: SWFL Age: 50 Posts: 3,318 Trader Rating: (3) Feedback Score: 3 reviews	You need to send in your CHRA as a core. You can go to Garrett's website and look for distributors whom are close to you. Getting a new CHRA for a turbo you don't have is kinda cheating the system. And yeah, without a core just buy a new turbo. __________________ LoverTechnologies "Half Broken Things!" Last edited by cotbu; 05-06-2012 at 02:43 PM.. Reason: Not babysitting, so no spoonfeeding.

05-06-2012, 07:31 PM	#5
2plus4plus0eq6 Zilvia Junkie Join Date: Oct 2005 Location: Canada, BC Posts: 390 Trader Rating: (0) Feedback Score: 0 reviews	Correct me if I'm wrong but the seals on the turbo that prevent the oil from leaking is on the core and therefore the seals cannot be replaced unless I take apart the core? I am assuming the seals between the housing won't be the problem. Thank you for all your help __________________

05-06-2012, 10:41 PM	#6
AdamR Leaky Injector Join Date: Jan 2008 Location: Owensboro, KY Age: 41 Posts: 134 Trader Rating: (0) Feedback Score: 0 reviews	Most of the time the seals aren't bad. It is more often a oil drain problem.

05-06-2012, 10:49 PM	#7
2plus4plus0eq6 Zilvia Junkie Join Date: Oct 2005 Location: Canada, BC Posts: 390 Trader Rating: (0) Feedback Score: 0 reviews	Really? Could you please elaborate? __________________

11-25-2012, 08:45 AM	#8
JDS Performance Zilvia.net Advertiser Join Date: Jul 2006 Location: Concord, NC Posts: 3,127 Trader Rating: (53) Feedback Score: 53 reviews	Well your in luck...I can get you a rebuild kit for your ball bearing turbo [email protected] __________________ http://www.240SXTECHDVDS.org http://www.JDSPerformanceTurbos.com

11-25-2012, 08:47 AM	#9
JDS Performance Zilvia.net Advertiser Join Date: Jul 2006 Location: Concord, NC Posts: 3,127 Trader Rating: (53) Feedback Score: 53 reviews	Also the Garrett chra exchange is more like $500 plus shipping..but that all depends on the condition of your turbo..if they can't rebuild out it will cost you alot more __________________ http://www.240SXTECHDVDS.org http://www.JDSPerformanceTurbos.com

11-25-2012, 08:54 AM	#10
Jesse@PureTurbos Leaky Injector Join Date: Aug 2012 Location: Oceanside CA Posts: 92 Trader Rating: (0) Feedback Score: 0 reviews	Old thread.. but we can rebuild BB turbos with seals only. It is complicated, it needs to be completely disassembled to replace the seals. I don't recommend one does it themselves. Best left to Pure Turbos. It will need to be cartridge balanced afterwards too. Seals only BB rebuild - $300 (includes balancing) Thanks __________________ PURE TURBOS 760.721.7669

11-25-2012, 01:33 PM	#11
JDS Performance Zilvia.net Advertiser Join Date: Jul 2006 Location: Concord, NC Posts: 3,127 Trader Rating: (53) Feedback Score: 53 reviews	I can get you a full ball bearing rebuild kit..includes the bearing cartridge, both o-rings, both piston rings (seals), pin (restrictor) for $275 shipped Then send to anyone for a chra balance for $50 __________________ http://www.240SXTECHDVDS.org http://www.JDSPerformanceTurbos.com

11-25-2012, 01:47 PM	#12
Jesse@PureTurbos Leaky Injector Join Date: Aug 2012 Location: Oceanside CA Posts: 92 Trader Rating: (0) Feedback Score: 0 reviews	Call us for the best price in the nation on ANY turbo parts! We can beat anyone's price __________________ PURE TURBOS 760.721.7669