mfg Posted May 9, 2020 Report Posted May 9, 2020 Studebaker engineers decreased oiling to the rocker shaft assemblies in Studebaker Avanti "R" engines by reducing the oil entrance hole in rocker shaft from 5/16" to .......?...... 1) 1/4".......2) 3/16".....or......3) 3/32"
studegary Posted May 9, 2020 Report Posted May 9, 2020 58 minutes ago, mfg said: Studebaker engineers decreased oiling to the rocker shaft assemblies in Studebaker Avanti "R" engines by reducing the oil entrance hole in rocker shaft from 5/16" to .......?...... 1) 1/4".......2) 3/16".....or......3) 3/32" 1) 1/4"
mfg Posted May 9, 2020 Author Report Posted May 9, 2020 3 hours ago, studegary said: 1) 1/4" Sorry, 1/4" is incorrect. Any other thoughts here?
r1lark Posted May 9, 2020 Report Posted May 9, 2020 3/32".......and wasn't this a change to not only the R series engines, but also the 259 and 289?
mfg Posted May 9, 2020 Author Report Posted May 9, 2020 3 hours ago, r1lark said: 3/32".......and wasn't this a change to not only the R series engines, but also the 259 and 289? And you are CORRECT!....I agree this was done to all late Stude V8's...brought on, of course, thanks to "R' engine performance development!
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