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#1
06-22-2007, 11:05 PM
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Tighten fan belt 90 2.6 190E
It is the weirdest thing. I cant get the belt to fit on my car. Ya, I know...look at threads...no really. I replaced the fan clutch bearing bracket and now the belt wont go back on. The tensioner either wont go slack enough of the belt shrunk. I have the belt diagram and I know how to tighten the belt tensioner. I just cant figure out what I am missing that is keeping the belt from fitting over the pulleys.
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Christopher Henkel 1990 190E 2.6 - Arctic white SOLD 1986 190E-16v - Blauswartze 1993 300CE - SOLD 2003 W208 CLK 320 Cabriolet - Magma Red 
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#2
06-22-2007, 11:11 PM
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If you loosened your tensioner and the belt won't go on, re-check the belt routing to be sure you have it on right.
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 1993 190E 2.3 2001 SLK230 1971 LS5 (454) Corvette Convertible
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#3
06-22-2007, 11:38 PM
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It could be that you have not loosened the tensioner.
You should seriously consider leaving the tensioner alone and taking the alternator loose, putting the belt on and replacing the alternator.
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2012 E350 2006 Callaway SC560
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#4
06-22-2007, 11:57 PM
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The damper shock will extend the tensioner all the way out with the bolt loose. Loop the belt around everything but the water pump and PULL on the belt toward the driver's side fender. The shock will slowly collapse and allow you to fit the belt on.
Too late now, but did you notice where the pointer on the tensioner itself was when it was tight and where it was when loose? If it didn't return to the start of the "ramp" cast in the tensioner body, you need to replace the tensioner, the rubber is shot and you won't be able to get it tight again. Peter
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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!
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#5
06-23-2007, 12:14 AM
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Quote:
I replaced the compressor, expansion valve, and drier on my 190 2.3 last week, and when I loosened the tensioner the pointer went half way. Sure enough, the rubber tensioner was shot. Installed a new one and hopefully this will be the last one... if I can get my wife to part with the car.
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1993 190E 2.3 2001 SLK230 1971 LS5 (454) Corvette Convertible
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#6
06-23-2007, 11:09 AM
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thanks for the help
I checked the belt routing with the actual cars manual. It should be correct.
The belt is a MB belt, it should be the correct length and size. I have changed th belt before on a few diff 190e cars. The tensioner is loose. The tensioner will move from side to side, back and forth. What I cant get to happen is the belt to go on over all the pulleys. I dont know why. If the tensioner rubber is bad with that keep the adjuster nut from tightening? I put the belt on the way i thought was correct and it was way too loose and i could not get the tensioner to tighten up to take ouut the slack. I then checked the manual and saw they had a different routing for the belt. I rerouted the belt and the belt is not long enough to go on the pulleys in the route shown in the manual. I am stumped.
__________________
Christopher Henkel 1990 190E 2.6 - Arctic white SOLD 1986 190E-16v - Blauswartze 1993 300CE - SOLD 2003 W208 CLK 320 Cabriolet - Magma Red
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