turbocharger radial play

[Fritz1]

Bravo is going to an annual right now, I am not home, A&P states that turbocharger starts developing radial play, turbo has about 850 h, A&P did not sound overly concerned and will bless it for another year, so I am wondering what radial play is permissible, what are the service limits for radial play of a Garrett AiResearch TA 0413 turbo and what is a prudent number to call it quits and pull it for overhaul?

[PilotX]

If radial play is evident, might be time to swap it. Ours made it 300 hours. 11 AMU away from base, down for three weeks. 

[Fritz1]

Yep exactly my thought, number is probably in AiResearch overhaul manual but have not gotten hold of that yet

[Rick Junkin]

20 hours ago, Fritz1 said:

Bravo is going to an annual right now, I am not home, A&P states that turbocharger starts developing radial play, turbo has about 850 h, A&P did not sound overly concerned and will bless it for another year, so I am wondering what radial play is permissible, what are the service limits for radial play of a Garrett AiResearch TA 0413 turbo and what is a prudent number to call it quits and pull it for overhaul?

At 3:30 in this Hartzell video they show the radial and axial clearance limit tables from the overhaul manual. That should get you in the ballpark if not spot on.

Cheers,
Rick

EDIT: Screen shot of the tables

[Fritz1]

Rick, awesome, that will do the trick. -Fritz

[Pinecone]

The other option is to call Main Turbo and see what they say. 

[Fritz1]

Will do