Just did the 300TE tonight. I wish it was only 50 minutes!
I did replace the visco clutch (old one not working well and VERY oily) and the tensioner. The old tensioner was cracked pretty badly.
Only trouble I had was loosing one PS pulley bolt (will look tomorrow when it's light) and the shock pushed the tensioner so far down I thought I'd done something wrong since I couldn't get the belt back on.
Cured the noise and the leak. Pure pain getting that stinking engine full of water! Nearly overheated it before I got it full.
Nice way to spend 6 hours on a Monday.
1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!