For all:
Do not worry, the roadster owner in question plans on replacing all the
fasteners that were under duress, from the heat wrench, or even from the
impact gun at the service station.....replacements will be hardnened also,
not grade two home depot stuff.
BTW, to get into the arcane termanology, quench hardening is what happens
when you throw water on a bolt when its red hot. Work hardening is what
happens when you forge a piece of steel, and results in a product that has
the desirable quality of toughness as well as hardness.
I could get into deeper explanations, but would have to get out my welding
handbook, and my material handbook from my nuclear submarine days....bottom
line, you guys are certainly right!
Heating red hot and then knocking the fastener loose with a few good taps as
soon as it gets below red hot has worked real well for me, no need to
quench. I still replace these fasteners though, if in a critcal use area.
Best Regards,
Jim
Chesapeake, Virginia
67 pushrod 2L 5spd
72 Datsun 510 Sportwagon
85 VW Cabriolet
88 Jeep Commanche Pickup
94 Dodge Grand Caravan
02 PT Cruiser
58 Aerocraft 14ft skiff W/01 25HP Johnson
>From: Keith0alan@aol.com
>Reply-To: Keith0alan@aol.com
>To: mtyler@hctc.net, datsun-roadsters@Autox.Team.Net
>Subject: Re: frozen nut on hub assembly
>Date: Tue, 14 Dec 2004 11:47:10 EST
>
>I agree. If you are removing the fastener and plan to throw it away and
>replace with new it's a good idea. Some places like holding fenders on is
>fine,
>but, take good care of your "life and limb" hardware. Heating anything
>critical
> red hot is definitely a no no.
>
>kw
>
>In a message dated 12/14/2004 7:00:35 AM Pacific Standard Time,
>mtyler@hctc.net writes:
>
>CAUTION!! If you do this, DO NOT re-use the fastener. Quenching the
>dull red steel with water will work harden the metal making it brittle.
>It could fail under load.
>
>-Marc
>On Dec 13, 2004, at 9:53 PM, Bob Winslade wrote:
>
> > Try heating them up with a torch, almost where they are starting to
> > turn
> > dull red, and douse them with water. Then try and put the wrench to
_________________________________________________________________
Express yourself instantly with MSN Messenger! Download today - it's FREE!
hthttp://messenger.msn.click-url.com/go/onm00200471ave/direct/01/
|