Problem Solving
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, and a variety of statistical approaches.
Examples of Problems Bob has worked on include:
- Product variability
- 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
- Ceramic Ball Failure
- Low pressure seal failures
- O-ring failures
- Cavitation erosion
- Camshaft and follower design
- Fuel line fractures and sealing
- Fuel filter issues (plugging, waxing, particle trapping efficiency, water separation)
- DEF Injector issues
- Exhaust fuel injector issues (HC injection for DPF Regeneration)
- Engine bearing failures
- Engine smoke and performance issues
- Engine cold start issues
- Injector train wear issues
- Engineering organizational issues