I wanted to stay in
Join Date: Mar 2015
I used to work in the oil industry on diesel driven fire pumps and they had air flaps fitted for exactly this problem. You would not believe the vacuums that can be generated before the engine stopped and sometimes the air filters would need replacement after a witness test! The big problem in those days was extra fuels in the air, like propane or solvents, not diesel or oil entering the combustion chamber resulting in overruns. Then I changed jobs to diesel driven agricultural equipment, when they fell over, literally down a hill, they would run to destruction on the engine oil. Shame to hear this is still possible in the modern age, turbo oil pressure sensor seems to be the next thing needed on a road car if they don't already have them?