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Registered
Join Date: Oct 1999
Location: Marietta, GA
Posts: 809
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Welding cranks
I have an early 2.0-2.2 crank that is undersized and I was wondering if you can weld and remachine these journals? Who does this kind if work on the six cylinder cranks? Has anyone changed strokes this way?
Thanks, neilca |
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11-26-2003, 05:42 AM
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I'm not sure if Porsche cranks can be done this way but the process is done by spraying on molten metal or by actually welding the crank on a rotating fixture then in both cases, turning them down.
The crank should be straightened afterwards...and rehardened (nitrided). Expensive processes...both of them...and probably not much guarantee. Bob
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Bob Hutson |
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11-26-2003, 07:45 AM
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Registered
Join Date: Oct 1999
Location: Marietta, GA
Posts: 809
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Welding of cranks happens all the time with the 4 cylinder engine. They change strokes even shape the journals to use VW or Chevy connecting rods. Can this be done with the six cylinder crank?
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11-26-2003, 08:00 AM
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Join Date: Jul 2000
Location: So. Calif.
Posts: 19,910
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Does anyone know a source for nitriding? I looked on the internet a few months ago and discovered most places have discontinued the service, at least in the U.S. Perhaps environmental issues. Tuftriding was a good alternative since the temperature of the heat treatment was low enough to avoid heat distortion (e.g. shaft bends).
Sherwood http://members.rennlist.org/911pcars |
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11-26-2003, 03:11 PM
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Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,494
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you should be able to find a 2.0 crank for a couple hundred bucks. WAY less than a reweld job. put an ad in the 911 parts wanted forum.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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11-28-2003, 11:44 AM
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Harley
