Savington

iTrader: (31)

20ish autocross runs, about 15 laps at Calspeed (one full session, 3 partial sessions). It started making a little bit of noise for about a lap, and then it stopped making boost completely. I thought I had popped a pipe, but then I heard it squeak a couple of times.

Back to Garrett tomorrow. I have an event in 2 weeks.

Laur3ns

WTF?! That stinks.
First thing that comes to minder is the funky oil drain, but other than that...?

18psi

iTrader: (76)

Holy **** man


Turbo miata's everywhere tremble at the mere mention of the name "Savington"

Savington

iTrader: (31)

If anything, that would cause an oil seal to go. Turbo is dry on the compressor side. Haven't seen the turbine side yet (I am going to hurl if the housing is fucked up).

Laur3ns

I know, that's why I doubt it's that. Very curious: get that turbo off, it's only three bolts this time Ok, and some oil/water lines.

Savington

iTrader: (31)

Bah. Don't know whether I didn't get them tight enough when I clocked it or whether they backed out on their own, but 5 of the 6 bolts that hold the turbine housing to the CHRA backed out. Turbine cocked to one side, made noise for a while, then finally seized the shaft. The turbo spins free, just like it should, but the housing and turbine wheel are done.

May do Resbond, may do safety wire.

Laur3ns

Wow, mine were tight as hell to get off. Maybe you put it on hand tight and forgot about them later on? I doubt that that is going to be our next failure point.

Savington

iTrader: (31)

Nope, I remember cranking down all 12 at the same time. I clocked the CHRA to fit the drain line, snugged a couple, pulled it back out and cranked them all. :(

Laur3ns

****, better get a root cause analysis on this.

Braineack

iTrader: (62)

Didn't JayL's brand new Garrett destroy itself as well?

kotomile

iTrader: (24)

Sucks Sav, and just when we thought you were done having to mess around with the turbo!

Laur3ns

He used teflon where he shouldn't have?

Braineack

iTrader: (62)

i still don't see how that made a compressor nut pop off....

gospeed81

iTrader: (51)

Thought that was ZXTex...

hustler

iTrader: (6)

that's gay as ****. Time for me to bust out the safety wire on mine.

thymer

iTrader: (5)

They aren't supposed to be horribly tight, 30ftLb's IIRC with blue loctite optional.

hustler

iTrader: (6)

Is this a poor attempt at humor? Please clarify so I can belittle you on the internet. I'd hate to mistakenly harass anyone.

thymer

iTrader: (5)

When I was clocking my 3071 I couldn't find a torque spec so I email Garrett tech support. I was surprised at the low value but maybe it's just for the compressor side as it is aluminum. I can't find the email now so maybe my memory is failing but it was low.

hustler

iTrader: (6)

so...what about the blue loctite? Does that work?

btw, 30lb/t is a ****-ton for that little bolt.

1stproject

iTrader: (4)

That really sucks! Sorry to hear....