Bob Straub is a very pragmatic problem solver, using experience and judgement as well as and many learned techniques and tools problem solving such as Kepner Tregoe, Shainin, Red-X, DOE, amd a variety of statistical approaches.
Examples of Problems Bob has worked on include:
Fuel system plunger seizure and or sticking
Fuel system structural failure/cracking due to both manufacturing and design issues.
Warranty “Trouble Not Found” issues
Low fuel lubricity wear issues
High pressure valve seat erosion and wear
Common rail injector over-fueling (steady and intermittent)
Injector output drift
High pressure seal failure
Fretting erosion issues
Check valve design issues
Low pressure seal failures
Camshaft and follower design
Fuel line fractures and sealing
Fuel filter issues (plugging, waxing, particle trapping efficiency, water separation)