Rusted Suspension parts - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
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#1 (permalink) Old 07-27-2006, 07:15 PM
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Rusted Suspension parts

Hey guys, I'm "restoring" an old 86 325, but some of the parts are quite rusted on, and to put all new parts in it, i'm going to need to get the old ones off first. Anyone have any better ideas to get rusted rotors/control arms/tierods/swaybar off, other than a torch and a 5lb sledge? and a whole lot of WD40. I'll let you know how it goes...
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#2 (permalink) Old 07-27-2006, 10:00 PM
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PB Blaster! Makes WD-40 look like water! You can get it at any good parts store or your local Fastenal Industrial supply. It's a must for old rusty stuff. Just spray liberal amounts on and waite an hour or so and they will come off with half the effort. Another piece of advise is to use impact to loosen rusted parts. Just tap the parts all around with a nice ball peen hammer and it will help to break the rust apart. If push does come to shove and use of the smoke wrench is neccesary, remember to heat the part untill it's really hot and then let it cool before trying to remove the piece! Lot's of people try to heat and take it off while it's hot. That actually doesn't help at all! When you heat something it expands therefore making it tighter. Once it cools however it contracts and that is what breaks the bond between the parts. Be careful and good luck!
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