All well and good, but we haven't answered Ferris' question yet ...

Why all the noise when compression braking? And is it the same reason for why a Jacobs Brake also makes a lot of noise when compression braking, or is it something different (i.e., Otto Cycle versus Diesel Cycle, for you Thermodynamics fans out there wink )?

Free One-Year Subscription to Stovebolt.com goes to the first one to correctly identifies the inventor of the diesel engine brake (the "Jake")


~ John

A kid raised on Hotwheels, Matchbox and Tonka cannot be reasonably expected to own only one vehicle as an adult.

1949 Chevrolet 3804
In the Legacy Gallery | In the Gallery Forum
1973 IH 1310 Dump
1963 Kaiser M38A1
2001 International/AmTran RE3000 "Skoolie"
2014 Ford E-350 4x4 (Quigley)