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#1
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Torque specs questioned for front suspension mount
I am replacing my front suspension guide rod mounts on my 300sdl. As I was torquing the rear bolt, # 134 in the picture attached, to the indicated 80 nm, I felt the torque suddely lighten up with this empty feeling in my stomach. As much as I hated to take it all apart again to see what was going on, I did and what happened is that the aluminum insert inside the large bushing cracked where the bolt goes through.
Did I miss identify the torque spec? 80 nm seemed quite high for this sized bolt but not that unusual. As a comment, it took probably over 120nm to loosen the bolt iinitially. Ideas?
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87 300SDL (115,000mi. 7/1/2008) 03 Jetta Wagon TDI (62,000mi. 7/1/2008) 75 240D(sold, sad to sell it, needed the garage for the SDL!) Smokey |
#2
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I haven't done much suspension work so I can't help you there, but this is exactly why I don't use a torque wrench. I'd rather use my feel and use torque values only as a guidance, or if none is given, I just use common sense.
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2004 VW Jetta TDI (manual) Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL |
#3
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Most likely it was the part Labeled 137 that failed they are not made very well 80NM is the correct torque
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#4
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Part 137 in aftermarket are crap from my experience. Threads are off and weaker than OEM.
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I'm not a doctor, but I'll have a look. '85 300SD 245k '87 300SDL 251k '90 300SEL 326k Six others from BMW, GM, and Ford. Liberty will not descend to a people; a people must raise themselves to liberty.[/IMG] |
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