Hello,

Some racks have a threaded hole in its front end. You can thread a screw into it through the front access and the rack should be able to move in and out about an inch if you push and pull on it.

If you use only the accelerator linkage to move the rack, it will move only a few mm . The centrifical governor inside the pump actually moves the rack the most when the engine is running at different rpms.

__________________
Joe Alexander
Blacklick, Ohio
1964 220SE Rally (La Carrera Panamericana someday)
1966 Unimog 404s (Swedish Army)
1969 300SEL 6.3 (sold)
1969 280SL Pagoda
1973 280SEL 4.5
1974 450SLC FIA Rally car (standard trans)
1982 300D turbo (winter driver)
1986 560SEC
1989 Unimog FLU419 (US Army)
1991 300TE (wife)
2002 SLK 32 AMG (350 hp)