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#1
12-16-2005, 07:17 AM
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240D AC Tensioner Pulley Question
Ok is this thing supposed to be self-Tensioning or what?
The only way to apply any Tension to my AC belt is to put a pry bar on the Tensioner Pulley and tighten up the big bolt. Is there supposed to be a spring in the Tensioner Pulley?  Here’s a pic, I would thing is there was a spring it would go in the area I circled in red yes i did search
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Jason Green 1977 240D AUTOMATIC the Beast  1974 Super Beetle  Suppose you were an idiot. And suppose you were a member of Congress. But I repeat myself. - Mark Twain, a Biography 
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#2
12-16-2005, 09:04 PM
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Bump
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Jason Green 1977 240D AUTOMATIC the Beast 1974 Super Beetle Suppose you were an idiot. And suppose you were a member of Congress. But I repeat myself. - Mark Twain, a Biography
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#3
12-16-2005, 10:15 PM
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Look at the picture and see where the nut is attached to the pully/bracket assembly. Notice the shape of the bracket is such that a open end wrench will fit over it. Install the assembly with the belt on the pullies. Then use an open end wrench to apply tension on the belt pully assembly. Use another box wrench to tighten the bolt holding the whole pully assembly to the block/mounting bracket.
The area shown in the picture Dave
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1970 220D, owned 1980-1990 1980 240D, owned 1990-1992 1982 300TD, owned 1992-1993 1986 300SDL, owned 1993-2004 1999 E300, owned 1999-2003 1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD 1988 560SL, 100,000mi, owned since 1995 1965 Mustang Fastback Mileage Unknown(My sons) 1983 240D, 176,000mi (My daughers) owned since 2004 2007 Honda Accord EX-L I4 auto, the new daily driver 1985 300D 264,000mi Son's new daily driver.(sold) 2008 Hyundai Tiberon. Daughters new car
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#4
12-17-2005, 04:16 AM
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I’m sorry Dave but that was not my question
Maybe I did not make my question clear enough Let me try to rephrase it I simple want to know if that pulley is self-Tensioning or not In addition, if it is self-Tensioning what dose the spring part look like?
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Jason Green 1977 240D AUTOMATIC the Beast 1974 Super Beetle Suppose you were an idiot. And suppose you were a member of Congress. But I repeat myself. - Mark Twain, a Biography
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#5
12-17-2005, 07:06 AM
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No the pully is not self tensioning. There is no spring. Adjust as discribed above by Dave. I don't believe the Self Tensioners came until the serpenteen (sp) belts came along.
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84 500 SEL (307,xxx miles)
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