Low torque in PT6-67a

[Racujo]

I just finished a desalinization wash and on the first flight post wash I experienced low torque output. Ng1 at 95-100%, 1700 rpm, but torque at 50-60%. Plane would fly but low speeds and would not climb out of 8000ft.
Any suggestions?

 

[GlennAB1]

I just finished a desalinization wash and on the first flight post wash I experienced low torque output. Ng1 at 95-100%, 1700 rpm, but torque at 50-60%. Plane would fly but low speeds and would not climb out of 8000ft.
Any suggestions?

There are a few cautions in the procedure for the -42A, I'd start there and make sure they were followed if the -67A procedure is the same. http://www.mmopa.com/gallery/150_PT6A-42A Wash Procedure

 

[Tarheelpilot]

I was going to recommend looking at the P3 system for contamination but I just noticed you said -67. I believe the big P&W's have woodward FCU's that don't use the P3 for reference like the small series engines do. So I'm not sure....


I would start with fuel and go from there .... just my best guess.

 

[Racujo]

Thanks, I will let you know how it goes.