Re: [MBZ] 1990 E300D/2.5 Turbo Question #2: Belt Tensioner Misalignment

[Curley McLain via Mercedes]

not life or death, but yes, time to start thinking...

Craig via Mercedes wrote:

In pulling the radiator out of the E300D, I noticed a slight misalignment
of the belt tensioner pulley compared to the water pump pulley.

I tried to take a picture, but it's hard to do. I got one with only a
flashlight and the camera, but then got the idea to use a flood lamp to
illuminate the area. Before I could get a picture from the correct
position with that, the bulb burned out.

Anyway, attached is the best picture I have at the moment.

The misalignment is only about 2 degrees, I'd estimate.

Is this enough to think about changing some parts?

Thanks,


Craig

---



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Re: [MBZ] 1990 E300D/2.5 Turbo Question #2: Belt Tensioner Misalignment

[OK Don via Mercedes]

Yes - it needs new bearings in the pivot arm.

On Wed, Apr 18, 2018 at 11:17 PM, Craig via Mercedes 
wrote:

> In pulling the radiator out of the E300D, I noticed a slight misalignment
> of the belt tensioner pulley compared to the water pump pulley.
>
> I tried to take a picture, but it's hard to do. I got one with only a
> flashlight and the camera, but then got the idea to use a flood lamp to
> illuminate the area. Before I could get a picture from the correct
> position with that, the bulb burned out.
>
> Anyway, attached is the best picture I have at the moment.
>
> The misalignment is only about 2 degrees, I'd estimate.
>
> Is this enough to think about changing some parts?
>
> Thanks,
>
>
> Craig
>
> --
> Present: '90 300D/2.5 Turbo246 kmi
>  '89 Chevrolet G20 Beauville Van (the Big Red Van,
>affectionately dubbed the BRV)
>207 kmi
>  '07 Peterbilt 386  Bruno  885 kmi  For sale!
>   Has Cat Platinum Overhaul!
>  '00 Kenworth W900  Helmut 943 kmi
>
> Past:'82 240D/3.0   Bluebell   286 kmi
>  '95 E320   Sebastian  135 kmi   RIP
>  '94 E420   Oskar  127 kmi   RIP
>  '86 190E/2.3
>  '72 220/8
>  '64 190Dc  Emma
>  '72 220D/8 Herman 186 kmi
>
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-- 
OK Don

*“Travel is fatal to prejudice, bigotry and narrow-mindedness, and many of
our people need it sorely on these accounts.”* – Mark Twain

"There are three kinds of men: The ones that learns by reading. The few who
learn by observation. The rest of them have to pee on the electric fence
for themselves."

WILL ROGERS, *The Manly Wisdom of Will Rogers*
2013 F150, 18 mpg
2017 Subaru Legacy, 30 mpg
1957 C182A, 12 mpg - but at 150 mph!
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Re: [MBZ] 1990 E300D/2.5 Turbo Question #2: Belt Tensioner Misalignment

[Meade Dillon via Mercedes]

Beware that there are different versions of that tension pivot assembly, be
sure to get one that fits your car.  Also order the plastic cover that
protects the external face of the pivot bearing from road dirt and grime.

-
Max
Charleston SC
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Re: [MBZ] 1990 E300D/2.5 Turbo Question #2: Belt Tensioner Misalignment

[Peter Frederick via Mercedes]

Replace it.  The bearing in the pivot is shot, and it will both knock and eat 
belts pretty soon.

Peter
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