

| Subject: | Re: Magical cast iron suspension? |
| From: | Chris S |
| Date: | Sat, 18 Oct 2008 00:52:31 -0400 |
Which means the steel pieces are up to the task as well. On 10/17/08, Zeitgeist <gruengeist@gmail.com> wrote: > Aren't all "T" chassis vehicles designated as one ton from sometime early in > the sixties (~'63?)? I strongly suspect that VW knew a thing or two about > how to make the suspension robust enough to maintain that designation. > > On Fri, Oct 17, 2008 at 6:18 PM, Mike <mbucchino@charter.net> wrote: > >> I seriously doubt that VW would make a heavy vehicle major suspension >> component out of a weak, brittle cast iron. Who says it's cast iron, >> anyway? My bet is that it's forged..........nothing less would do....... >> >> Mike B. >> >> ----- Original Message ----- >> From: "pdooley" <psdooley@VERIZON.NET> >> To: <vanagon@GERRY.VANAGON.COM> >> Sent: Friday, October 17, 2008 9:46 AM >> Subject: Re: Magical cast iron suspension? >> >> >> Ummm, what about ductile cast iron? >>> >>> You must be thinking of white or gray iron. Those are low >>> strength/ductility and give cast iron a bad rep. >>> I'm pretty sure VW didn't use that for the control arms. >>> >>> No, I'm pretty sure they used ductile/nodular cast iron, which is plenty >>> tough and strong for use in a Vanagon suspension. >>> >>> Regardless, cast or stamped, there is no way I would change from one or >>> the >>> other, I already have enough to do without looking for more work. >>> >>> >>> >>> -----Original Message----- >>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf >>> Of >>> John Reynolds >>> Sent: Thursday, October 16, 2008 9:02 PM >>> To: vanagon@GERRY.VANAGON.COM >>> Subject: Re: Magical cast iron suspension? >>> >>> "So still no compelling evidence to upgrade, especially based on my >>> driving >>> experience of 4 years each in an '85 and '84 Westy." >>> >>> Probably cost. Fabricating arms out of several pieces of steel and >>> welding >>> them were likely more expensive than casting. That's my guess. >>> >>> I'd prefer the welded steel than brittle cast iron anyway. Steel when >>> over >>> stressed will bend, the cast iron will break clean off, most grades have >>> have very little ductility. Cast iron, repeat after me: strong in >>> compression, weak in tension. >>> >>> My $.02, your mileage may vary. >>> >>> John R >>> >> > > > -- > Casey > '87 300TD > '94 100CSQ Avant > '89 Bluestar > -- Sent from my mobile device Chris S. Disclaimer: "Death and serious injury may occur"
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