I have developed an oil leak on my port 550hp 8V92TI. It is coming out from under the rear outboard side of the blower. I removed the airbox and the airbox has oil residue in it and the blower gears also have a slight oil residue on them. My question is do I have bad seals on the blower? Can a layman repair them or do I need a new reconditioned blower? I am pretty mechanically inclined but am NOT a diesel mechanic, should I opt to have a DDC mechanic come down and look at it or just try and do it myself.

I (with help from friends) have replaced both heads, injectors, water pumps, turbos, done tune ups, changed oil, and such. I am not so sure I want to get into governor timing, blower gear tolerances, and such. Any opinons are greatly appreciated. I am not even sure I can get the blower off without taking the whole front of the motor apart, cooling system included.

Thanks
Dave