First let me say that changing an alternater belt shouldn't be this damned difficult. I got the new belt on but the belt is rubbing on part of the bracket that holds the tensioner screw. Since the belt broke while on the road I didn't get to see what this looked like before. SOOOOO I'll be driving the wifes van to work again tommorrow. Any help on how to correct the problem would be much appreciated and pics would be helpful. It's a 1981 240D. Thanks, JEFF

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1981 240d aka "The rust bucket"

first one I could find...

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

this an SLS equipped motor? that pump looking thing by the power steering?

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hum.....
1987 300TD 311,000M Stolen. Presumed destroyed

yes, that flange is where the SLS pump would go on a 123 Wagon... and I'd guess it's from a california model 85... but the opposite side of the pic shows a pretty good look of the alternator bracket.

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John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

If the belt is rubbing the bracket, the bracket may be bent. It is easy to bend the bracket by trying to adjust it without the alternator being loosened.

I had issues with belts rubbing on this area. I cured it by using a smaller belt.

That's an 85 Kali motor with the dreaded trap.

Attached Thumbnails

 

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DJ


84 300D Turbodiesel 190K with 4 speed manual sold in 03/2012

To change alternator belts or to adjust tension, only the bottom alternator bolt and the bracket lock down bolts (both 17 mm accessed on the regulator side) need to be loosened.

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85 300D turbo pristine w 157k when purchased 161K now
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked

Isn't this the symptom of an engine mount needing to be replaced ?

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1980 240d ,

chain elongation, cam marks reference:
http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html

http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html

evap fin cleaning:

http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator

A/C thread

http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html

I don't really think so. The pulleys are all on the engine and not seperate from the mounts.

So wouldn't a bad engine mount just cause the entire thing to tilt to one side?


To the OP: If the bracket is too rusty to deal with you can take an eye bolt, some washers, and bolts to fashion a new tensioner out of it for $4. Here's the thread where I made mine and took a picture for reference. Stuck on V-Belts: ALternator bolts frozen and tension bolt broken

Good luck!

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-Typos courtesy of my mobile phone.

Thanks All, The bracket doesn't appear to be bent or broken so I'm not quite sure what the problem is. I'm headed back out to the garage now to try to figure it out.

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1981 240d aka "The rust bucket"

when you get there, take a picture and post it here and we'll help you figure out the issue.

__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 560SL convertible
1987 190D 2.5-5SPEED!!!

1987 300TD
2005 Dodge Sprinter 2500 158"WB
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!

OK problem solved. Turns out I didn't have the bottom pivot bolt loose enough and it wasn't allowing the alternator/bracket to move in it's full range of motion. As a result the bracket was stuck in an odd position close to the belt and rubbing. I have another problem now but I'll put that in a different post. Thanks everyone for the help. Jeff

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1981 240d aka "The rust bucket"