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Old 06-16-2019, 11:59 AM
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Carrier mount,trans mount bolts and torque values

I was replacing the trans mount and carrier mount on my 1985 w123 300D and I found that the threads on the 2 bolts holding both of these parts were pretty smashed together as well as a pain to remove. For temporary, I installed same length, size, and thread pitch Lowe's hex cap bolts with lock & regular washers without difficulty. Any real danger just leaving these on the car? I looked online for torque values on regular 8.8 m10x1.25 bolts and their max torque value appears to be ~18ftlbs. Also, for the life of me I cant find the Mercedes torque values for flex discs, diff mount, trans mount, trans sub-frame, and carrier mount bolts. Anybody out there know the values?
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Old 06-16-2019, 12:12 PM
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Should not be a problem as long as your replacement fasteners were at least grade 5 or grade 8.
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Old 06-16-2019, 03:44 PM
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Quote:
Originally Posted by BWhitmore View Post
Should not be a problem as long as your replacement fasteners were at least grade 5 or grade 8.
"Grades" are applicable to SAE fasteners, not metric.
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Old 06-16-2019, 03:51 PM
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https://www.boltdepot.com/fastener-information/materials-and-grades/bolt-grade-chart.aspx
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Old 06-16-2019, 03:59 PM
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Correct, should have stated a minimum of metric 8.8.
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Old 06-17-2019, 09:10 AM
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drive shaft torques

Here a some of the torque values you're looking for


Jeff
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Carrier mount,trans mount bolts and torque values-41-050-1.jpg  
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