Quote:
Originally Posted by bmb7t
I did not know that the rear chassis was a weak point for the E24.
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It is such a weak point that BMW developed a "Differential Mount Repair Kit" in 1985. Here is the documentation:
Differential Mount Repair
Here is a pic of the damage to my B7. There are 2 cracks: 1 near the bolt, and one on the flat bar :
Now the chassis has been duly reinforced around the 4 bolts, so this is behind me.
Two things I learned in 4 years of ownership of this B7:
1. strange problems can happen that you would not even thought about.
2. there are people who knew about these problems before you, thus there is a solution (mainly through BMW or Alpina itself for the engine).
The problem with old Alpinas is that not all spare parts exist anymore. Therefore we sometimes depend on the goodwill of some individuals in Buchloe to repair the most complicated pieces, such as the Pierburg Injection head (actually the repair is made at Pierburg plant in Neuss, but there they only accept orders from Alpina. Believe me, I tried... ) .
My fear is the going concern of my B7 (and B10 BT), when the people who have the knowledge won't be there anymore...
Aston (my other yougtimer) does not have that issue, because they decided to make a business out of the "heritage" cars, i.e. all parts are available, people are trained on how to make and install them , etc. Of course the price of Aston pieces is like beluga's one.
Which makes the B7 maintenance price look like cheap in comparison .
When I will have the B7 back at home (hopefully in a few days or two weeks) I will post a separate post with all encountered issues in the last 4 years, and their solution.