Seeking some feedback on how difficult a job it would be to R & R the 12 injectors (then send them to a injector shop for overhaul) on twin Lehman SP 225 Turbo engines. Access is (of course) good on P and OK on S & kneeling engine room so overhead to top of valve cover is tight-9".. My book says lifter rack must be removed to take out the injectors, so, re-setting the valves would need to be included. Are any special tools required? I would assume one would want a set of proper tubing wrenches and torque wrench-how are tubeing fittings torqued, since cannot use a socket? What is a good estimate of difficulty & time, I'm pretty handy, rebuilt several gas engines, winches, transmissions etc (non-professional). Thanks for any feedback from someone who has done it. Thanks. Tom Hitchcock. 281-383-2927 cell-713-254-3105