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Knife Edges
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Author:  subarupete [ March 28th, 2015, 7:00 pm ]
Post subject:  Knife Edges

Ok Guru's.

What steel should be used for Knife-Edges?
Are they Hardened?
Are they tempered?

Cheers
Peter

Author:  lpgo [ March 28th, 2015, 8:03 pm ]
Post subject:  Re: Knife Edges

Citroen old new stock steel.... that's the only thing I know :D :D :D :D

Author:  subarupete [ March 28th, 2015, 8:26 pm ]
Post subject:  Re: Knife Edges

I plan to make some, hence the request for info..

This Shape


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Author:  lpgo [ March 28th, 2015, 8:34 pm ]
Post subject:  Re: Knife Edges

To soft... the knife-edge will go..

To hard.. the eye will go...

So you need to be in between...

Author:  Sean [ March 28th, 2015, 8:57 pm ]
Post subject:  Re: Knife Edges

the knife edges were replaced with 12.9 Bolts on the medical team Meharis of Paris Dakar early days. Im sure its in one of the "Ici...." books

dont know what the advantage of any would be - but for your short trial adventures having something easily sourced would be an advantage surely?

Author:  Pony [ March 28th, 2015, 9:35 pm ]
Post subject:  Re: Knife Edges

eh pete i'll
tell all you need to know about knife edges and pins in Morvan
as i have probably made more than any one else except Citroen!!

Author:  subarupete [ March 28th, 2015, 9:45 pm ]
Post subject:  Re: Knife Edges

So?

Hardened?
Tempered?

Author:  ChrisW [ March 28th, 2015, 10:06 pm ]
Post subject:  Re: Knife Edges

What steel do you use now for your bolts? Have they failed - NO - I would copy that.
I replaced my rod ends with new ones from ECAS and within 6 months they had a groove in them from the knife edge ( greased well all the time)

Author:  subarupete [ March 28th, 2015, 10:19 pm ]
Post subject:  Re: Knife Edges

Have used 10.9 bolts, and you can see a large contact area,
Ken's info on knife edges gave me the idea to make my own.
Front's need to be longer than standard,
Rears I can used standard parts but new stuff is to soft and doesn't weld.
Hence the DIY approach

Author:  EirikJ [ April 24th, 2015, 10:57 am ]
Post subject:  Re: Knife Edges

I can't help with the question from SubPete, but I will ask another one; Where can one buy good quality knife edges and the tie bar end piece?

It's getting harder to find decent used ones in my pile of parts, and I do not like bad quality after marked parts. I'll gladly pay more for good quality.


Regards, Eirik

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