 Hardened crank in the 4g63? |
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 May 5 2006, 12:14 PM
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#1
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DSM Tech Wizard  Group: Members Posts: 2,256 Joined: 10-January 01 From: central IL Member No.: 10  |
Had an interesting talk with Ken Kalina of Kalina Machine.... He was curious why I didn't want to turn my crank. I replied that I heard that the cranks are hardened and that people have had problems with them after they turn them. He claims that "to his knowledge" there were only a few cranks ever produced that were hardened, and the mitu's weren't on the list.
Are our cranks hardened or not? If so, where is the proof of this? I've got 3 blocks now that all need cranks turned, no reason to thow them out if they can still be used! -------------------- The fastest car I own is a minivan....
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May 5 2006, 02:02 PM
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 DSMCentral Freak Group: Members Posts: 396 Joined: 10-January 01 From: Peoria, IL Member No.: 8 |
My understanding is that the cranks have been nitrided. You can turn them and the will work. They will not have the nitride hardening anymore though.
See if you can get MITSUBISHI bearings to fit a turned DSM crank. -------------------- |
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May 5 2006, 03:01 PM
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#3
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Info Seeker Group: Members Posts: 92 Joined: 28-February 05 From: Quad Cities, IA Member No.: 465 |
QUOTE (awdnot2gsx @ May 5 2006, 02:02 PM) My understanding is that the cranks have been nitrided. You can turn them and the will work. They will not have the nitride hardening anymore though. Exactly, You can get them re nitrided though, still not a good idea. -------------------- 1992 TSi AWD, Auto swapped
Click Here For My DSM Registry |
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May 5 2006, 07:07 PM
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#4
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 DSMCentral Freak Group: Members Posts: 352 Joined: 7-July 04 Member No.: 319 |
does nobody knife-edge their cranks anymore?
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May 5 2006, 07:37 PM
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#5
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DSM Tech Wizard Group: Members Posts: 2,256 Joined: 10-January 01 From: central IL Member No.: 10 |
QUOTE (awdnot2gsx @ May 5 2006, 02:02 PM) My understanding is that the cranks have been nitrided. You can turn them and the will work. They will not have the nitride hardening anymore though. See if you can get MITSUBISHI bearings to fit a turned DSM crank. Is there any proof of this? I'd love to be able to show Ken that they are nitrided, and make sure he believes me! -------------------- The fastest car I own is a minivan....
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May 5 2006, 09:28 PM
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#6
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 Post Master Group: Members Posts: 780 Joined: 14-July 04 Member No.: 338 |
QUOTE (scrapin_frame @ May 5 2006, 07:07 PM) does nobody knife-edge their cranks anymore? FFWDConnection.com offers "the butcher" crank. Essentialy the same thing, though they made an intelligent variation. The leading edge of the crank is rounded, and they knife edge the trailing edge, much like an aircraft wing. I'm pretty sure that this has no effect on the crank being nitrided, since that's more of an issue for the bearing wear surfaces. -------------------- QUOTE (gsxracer80 @ Oct 31 2006, 12:41 AM)
thanks hcar.... I am still massaging that area trying to get it ready...  |
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May 5 2006, 09:29 PM
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#7
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DSM Tech Wizard Group: Members Posts: 2,404 Joined: 16-December 03 From: Fletcher/Bloomington Member No.: 214 |
QUOTE (scrapin_frame @ May 5 2006, 07:07 PM) does nobody knife-edge their cranks anymore? Yes there are people out there that do still knife-edge their crankshafts. Why do you ask? -------------------- "I hear he tunes the space shuttle also...and that thing is fast"
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May 6 2006, 04:43 AM
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#8
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DSMCentral Freak Group: Members Posts: 352 Joined: 7-July 04 Member No.: 319 |
QUOTE (turbohcar @ May 5 2006, 09:29 PM) QUOTE (scrapin_frame @ May 5 2006, 07:07 PM) does nobody knife-edge their cranks anymore? Yes there are people out there that do still knife-edge their crankshafts. Why do you ask? i just never see anybody talk about it anymore.. so since cranks were brought up, it was my chance to ask |
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May 8 2006, 01:06 PM
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#9
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DSMCentral Godfather Group: Admin Posts: 3,823 Joined: 10-January 01 From: Washburn Member No.: 26 |
As Rob & I discussed, I am still running a turned crank in my stroker. I don't obviously have a lot of miles on it but so far we are up too about 1500mi not including the 300 miles on the first go-round. BTW- I di not have it re-nitirded.
We will see... -------------------- In Loving memory of David T Crebo
Greatness comes from the most unexpected places!  |
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