There is a button (I'm assuming the slide) on the inside of the hole the tensioner screws in to. This feels like it's spring loaded. If the crank bolt is turned CW, the amount of distance this button can be pressed in changes. Would anybody have a good diagram of what it looks like inside to see exactly what we're dealing with. I have the MB 602/603 engine manual...but it's not very "pictoral".

__________________
Lance Allison
Lance@LanceAllison.com

Current:
11 MB S550 4Matic, 55k miles, Designo Black/Black
14 Ford F150 XLT Lariat Crew, 73k miles, 5.0
Coyote V8 4x4. Black/tan.
09 GMC Envoy Denali, 5.3 V8, 4x4 SWB. 38k miles,
Jewel Red/Med Gray.

Gone:
87 MB 300SDL, 320k miles, Astral Silver/Blue.
98 VW Jetta TDI, 488k miles, Classic Green/Gray.
85 Olds 98 Brougham FWD, 4.3 DIESEL V6, 80k
miles, 3x Gray.

MBCA Member, Chicago Region