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  BMW Forums » BMW discussion forums » BMW Z-Series
  Dear GOD! Who designed this diff carrier?

 Dear GOD! Who designed this diff carrier?



Ok, so after about 3 hours of pain, and jiggling and manipulation I got the 4 monster bolts back in the diff. People say its hard, but they dont give you any idea. So, the Diff is bolted up, the driveshaft is bolted on, the carrier is bolted up. Everything is done for part two. Tonight I will attempt to install the half shafts and torque them to spec. Has anyone ever torqued the top bolts to spec? How about the side bolts?

And no one better tell me how easy it is to drop the subframe and do it, I might just scream.

But its finally getting to the point of getting done. And many thanks for Dan for finding me the torque values for the diff cover late at night when I had no internet access!
   Reply » Dear GOD! Who designed this diff carrier?

These bolts?



I was not able to and/or for some lame reason I did not use a torque wrench on them I think. Now you are going to keep me awake at night thinking about it.

   Reply » Dear GOD! Who designed this diff carrier?

Just have Randy torque them when he does the subframe. Thats my plan.

   Reply » Dear GOD! Who designed this diff carrier?

Ok, just curious. Whats up with the spacers? What purpose do they serve?

   Reply » Dear GOD! Who designed this diff carrier?

Quote:
Ok, just curious. Whats up with the spacers? What purpose do they serve?
To allow the bolts to stretch/maintain elastic tension

   Reply » Dear GOD! Who designed this diff carrier?

Quote:
These bolts?



I was not able to and/or for some lame reason I did not use a torque wrench on them I think. Now you are going to keep me awake at night thinking about it.
I torque them (only) when I have the subframe lowered to install the Ireland bushings. As many times as I swapped the differential out in the gray car, the bolts were never tightened to torque spec; they were always plenty tight each next time I went to remove them.

I think the value is 110Nm (I'd have to look it up...).


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