not really, evidence that I did a complete tuneup and rack adjustment and installed jake brakes on my engine. I used my normal tool kit, nothing special. But if I had to do it in the bus, particularly our MC5's, the kit would make it a lot easier. Timing the injectors with a gauge instead of a depth mic, having the off-set wrenches for the push-rods, having the rack tool, the throttle delay pin, the go-no go for the gap. Plus it depends on your definition of common tools. I have a Bridgeport and I think that's a common tool
I made a .062 gauge for when i set up my jake brake. I think making a .062" go/no go gauge is easy, others might find it difficult.