Gearhead43 Posted September 20, 2004 Report Share Posted September 20, 2004 Enginnered Performance Says rebuilt Turbo's need a Break-in period. Any of you with rebuilt turbos heard this before :?: ... Sounds like they are trying to shift the blame for the turbine shaft oil seal going bad.... If a break-in is required, for how long? Quote Link to comment Share on other sites More sharing options...
TGPilot Posted September 20, 2004 Report Share Posted September 20, 2004 Most turbos require a few heat cycles to allow for things to "seat-in" before maximum boost is subjected to it, but the oil seal should not be effected by anything except extreme heat or lack of lubrication. If the oil seal and surfaces contacting the seal where prepped correctly on your turbo, you should not have had any issue with it from first start to 100,000 miles. Now if you did not have any oil up to the turbo (normally there within 3 revolutions of the motor) and you went to full boost immediately...then you would have cooked the seal... 8) Quote Link to comment Share on other sites More sharing options...
dkorinko Posted September 20, 2004 Report Share Posted September 20, 2004 I have never heard of a turbo "break in" period but....im sure it couldnt hurt not beating on it as soon as you install it. Quote Link to comment Share on other sites More sharing options...
DaveFromColorado Posted September 21, 2004 Report Share Posted September 21, 2004 a rebuilt turbocharger should NOT need a break-in period, as the turbin shaft has already seated from previous heat-cycles - unless they used a NEW shaft, in which case, after the first heat cycle you should be alright. I've never put in a turbocharger that I didn't go out and beat the hell out of right away by pushing it to it's max. unregulated boost, and I've never had a seal fail that quickly. (it still usually takes me a year to kill 'em) --Dave. Quote Link to comment Share on other sites More sharing options...
TurboGTU Posted September 21, 2004 Report Share Posted September 21, 2004 WTF..hell no. IF they did..your BEARINGS would have gone. NOT your turbine seal. One of two things. They didn't use assembly lube..or they overstreached the turbine seal...and jamed the turbine in the housing hard..cuz it wouldn't go in...braking it. Did they even look at it? Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted September 21, 2004 Report Share Posted September 21, 2004 i've never heard of a turbo break-in period, but i myself would probably run a vacuum line between the wastegate and manifold vacuum source (so minimum boost) for the first few hundred miles or so to be on the safe side. Quote Link to comment Share on other sites More sharing options...
DaveFromColorado Posted September 21, 2004 Report Share Posted September 21, 2004 ... why go regulated when unregulated is SO much more fun? --Dave. Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted September 21, 2004 Report Share Posted September 21, 2004 because the factory calibration will shut down the party real quick! i do have the next best thing available without hitting overboost cut however... http://www.turbosedan.com/DSC00940.JPG no i'm not talking about a custom memcal...i'm talking about the brass thingy...my trusty $25 grainger valve now if only i had an adjustable ziener diode... Quote Link to comment Share on other sites More sharing options...
DaveFromColorado Posted September 21, 2004 Report Share Posted September 21, 2004 you could probably fab. somethin' together with radioshack toys for the adj. Z-diode box I can remember seeing about 6 years ago, a TGP at the local gas station, and these guys were fixing the fuel cut off, to make it go away. --Dave. Quote Link to comment Share on other sites More sharing options...
Guest TurboSedan Posted September 21, 2004 Report Share Posted September 21, 2004 yeah my brother just got a ziener for his Shelby, i should take a pic of it. Quote Link to comment Share on other sites More sharing options...
DaveFromColorado Posted September 21, 2004 Report Share Posted September 21, 2004 .. now I gotta ask, what would you do with this item? (I know nothing about the TGP's, so it's an honest question) I never know if I'll get one, I hate naturally aspirated cars, and may end up (one day) picking up a TGP, or TSTE... --Dave Quote Link to comment Share on other sites More sharing options...
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