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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. is the premier BMW Forum on the internet. Registered Users do not see the above ads.
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Old 03-31-2012, 04:13 PM   #1 (permalink)
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new member, huge problem...

Not sure what to do....

Got my newly rebuilt 1991 325i, m20 head back from the machine shop today. When I bolted on the cam sprocket the bolt snapped off INSIDE the end of the camshaft, before the spec'd 48-52 lbs torque was reached!!

Has anyone even heard of something like this happening? Is it likely that the machine shop that did the rebuild could drill it out and use an EZ-out, or some other similar tool to remove the stud out of the camshaft, without damaging the camshaft or the head?
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Old 03-31-2012, 06:55 PM   #2 (permalink)
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I've never heard of it but I'm sure it's possible. Ask your machine shop. They should have the tools to fix it. I was removing a bolt that holds my bumper on and the nut siezed and sheared off the bolt so it does happen.
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Old 04-01-2012, 08:29 AM   #3 (permalink)
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Yes it happens... Drill and stud-extractor required.

Eso es todo!
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