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Nut in the turbo, nut in the turbo, hi ho the dairy oh, a nut is in the turbo... 444-544

uid 25070's pic
posted by  Barongrey on  Wed Nov 2 13:59 CST 2005
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last visit: Wed Dec 3 15:46 CST 2008
[RELATED]

I would suspect one of two causes: either you are getting some new vibration in the turbo (shaft wear or a chipped/broken vane) or something seized up (temporarily?) and allowed the nut to break its original torque setting.

Putting anything inside the turbo - against the vanes - is a HUGE NO-NO! You can very easily bend or break a vane, and your nice turbo will be several pounds of junk. There must be some way - perhaps a special tool? - that will lock the shaft while you tighten the nut.

LocTite is a good idea, but for something that spins so fast, I'd be more tempted to cross-drill the nut and shaft (after reaching the recommended torque setting) and install some aircraft safety wire to keep things where they're supposed to be.

Good luck with the car. Let's all hope it turns out OK.

BTW, I'd be much more likely to install a supercharger on a B18 or B20 rather than a turbo. Much less plumbing, no turbo lag, etc. etc. etc.






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