Several years ago my amm to turbo tube corroded and was taped at the nipple. The mechanic who did thid also had to remove a vacuum hose and said he was temporarily bypassing the turbo. So, now I want to replace all the hoses and bring my turbo to functioning mode. Should I lubricate my turbo prior to this.? Since the unit has not been operational is it wise to replace hoses and try to see how it performs? Sorry quys I'm not a mechanic.

I don't really understand what you mechanic did, but is sounds like you need a new mechanic. I doubt he bypassed the turbo, does your turbo guage still get into the yellow? Are you sure he didn't disconnect the vacuum line to the compressor bypass. If so, you would only be hurting the turbo because all the compressed air will come back and slam the inlet instead of being released back to the intake.

A little more information, or pics of your intake hoses would be very helpful, i am not sure what you are trying to say.