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Registered
Join Date: May 2005
Location: England
Posts: 52
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Cracked Crankshaft
Hi im having a full rebuild on my 85 3.2 Carrera and have had 2 cranks machined only to be told they are cracked? Is this common and if so can they be repaired? My original crank had a spun a bearing on one of the journals.
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09-06-2005, 08:24 AM
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Registered
Join Date: Mar 2005
Posts: 743
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Hello there.
Its not uncommon for cranks to crack.. However, no reputable Porsche guy would do any work on a cracked crank...its very easy to test them.. The Industry Standard Test is to drop it from 3 feet carefully and horizontally onto a concrete floor. Most ring loud and clear, some make a muffled dong, and some fall in half.. Then you can proceed to spend cash on dye and or magnafluxing.. Kind regards David |
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09-08-2005, 11:21 AM
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Registered
Join Date: Mar 2004
Location: City of Seattle, WA
Posts: 3,374
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3.2 cranks seem to be particularly susceptible to cracking, compared to other 911 engines. may be down to rod bolt issues, not sure.
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Andy |
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09-08-2005, 12:20 PM
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