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Registered
Join Date: Oct 2006
Location: Raleigh, NC
Posts: 760
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Is this Crank reusable? pic
I was taking the rods off tonight when I saw this (fourth journal down) the scratch isnt that deep but is definately a scratch. Any ideas on if I can fix this or do I have to get another one?
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John A. 1979 Porsche 930: 3.4L, SC cams, Twin plug, Leask WUR, Custom SSI turbo exhaust, Tial WG, K27HFS, and we can't forget the Zork (short lived depending on my homeowners assoc.) 05 Boxster S: For the Track. 06 Dodge Ram 2500 Power Wagon: Tow Vehicle |
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03-28-2007, 07:50 PM
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Registered
Join Date: Feb 2007
Location: Atlanta
Posts: 26
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If I am looking at the Picture correctly, that is very ugly. It most likely can be saved. There are machine shops that specialize in grinding cranks. They grind them and then re-size the bearings. There was one in Atlanta years ago called the crankshaft exchange. Anyway, my opinion is you need to replace this crank or get it professionally ground and polished. Do not re-assemble with this the way it is.
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03-30-2007, 06:09 AM
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Senior Member
Join Date: Feb 2000
Location: Lacey, WA. USA
Posts: 25,310
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No. Get a good used one.
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Man of Carbon Fiber (stronger than steel) Mocha 1978 911SC. "Coco" |
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03-30-2007, 06:24 AM
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Bill is Dead.
Join Date: Jul 2005
Location: Alaska.
Posts: 9,633
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I may be completely wrong on this, and I hope somebody will correct me if I am....
I had heard that Porsche cranks had very shallow hardening of the bearing journals, and that the Porsche crank should never be ground unless the shop can also re-heat treat. Is this true??
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-.-. .- ... .... ..-. .-.. -.-- . .-. The souls of the righteous are in the hand of God, and no torment will ever touch them. |
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03-30-2007, 08:01 AM
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