hi can you help me,recently my 692 detroit started to warm up at 1200 rpms,i had a mechanic do the injectors where it didnt do munch,next we opened the blower and turbo,he said the turbo looks like needs replacing but the blower rotors are moving when the engine is off they are moving like a quarter inch not the long way the long way is tight but side to side its moving quarter inch ,is that ok and also maybe you can rebuild this one as i watch your video and wow like that is very good workmanship,thanks
I expect that they had a fixture to help them lock case to wall clearances, after which they would drill the dowel pins in. Rotor timing is changed with shims for production units, so a human can change those in a minute or two, if he does it all the time on the line.
I have read over many patents over the years, and have assisted with writing few, so fortunately I am familiar with the format and can usually skim through these pretty quickly. This patent is very cool in terms of where it falls in manufacturing history. It was filed by Eaton Corporation in 1985, during the time frame where they would have been doing the initial development work on the M62/M90 series superchargers. Eaton would begin supplying these blowers to Ford, GM and other OEM's about 5 years after this patent was submitted. This patent shows that they were acutely aware that hand assembly and clearancing of their new blowers would not be practical, and that they needed a fixture to get rotors rapidly phased during mass production assembly. The hardware and methods shown in the patent don't readily translate into doing final assembly of a 6-71 for a Hot Rod, but they are a very interesting window into what type of development was happening in manufacturing 30+ years ago. Thanks!
I have a 671 blower fresh of a Detroit that I'm using for a ratrod build , your video is very helpful 👍
hi can you help me,recently my 692 detroit started to warm up at 1200 rpms,i had a mechanic do the injectors where it didnt do munch,next we opened the blower and turbo,he said the turbo looks like needs replacing but the blower rotors are moving when the engine is off they are moving like a quarter inch not the long way the long way is tight but side to side its moving quarter inch ,is that ok and also maybe you can rebuild this one as i watch your video and wow like that is very good workmanship,thanks
How did they set clearances in these things when they were in mass production ?
I expect that they had a fixture to help them lock case to wall clearances, after which they would drill the dowel pins in. Rotor timing is changed with shims for production units, so a human can change those in a minute or two, if he does it all the time on the line.
@@MakerCave interesting
Google Search US Patent "US4638570A"
"Supercharger assembly and rotor phasing fixture and method of partially assembling"
You're welcome 👍
I have read over many patents over the years, and have assisted with writing few, so fortunately I am familiar with the format and can usually skim through these pretty quickly. This patent is very cool in terms of where it falls in manufacturing history. It was filed by Eaton Corporation in 1985, during the time frame where they would have been doing the initial development work on the M62/M90 series superchargers. Eaton would begin supplying these blowers to Ford, GM and other OEM's about 5 years after this patent was submitted. This patent shows that they were acutely aware that hand assembly and clearancing of their new blowers would not be practical, and that they needed a fixture to get rotors rapidly phased during mass production assembly. The hardware and methods shown in the patent don't readily translate into doing final assembly of a 6-71 for a Hot Rod, but they are a very interesting window into what type of development was happening in manufacturing 30+ years ago. Thanks!
hi