[Vwdiesel] Retorquing ARP racing studs
Will Taygan
william at taygan.com
Sat Jan 31 15:15:05 PST 2009
An indulgence, kind sir.
Conceeding a good and proper torque was found in the beginning, and thy
transport still requires attention would thou prohibit the retorquing of
said studs?
Or at the assigned 600 miles, or perhaps at said warmed and cooled
engine state would thou apply thy wrench again?
If thy wrench is reapplied, would thou break said bolts in a reverse
torque pattern and retorque the entirety, break verily a single bolt and
retorque in a constricting pattern or merely apply said wrench without
breaking said bolts?
And if thy steed has passed verily 150 miles without a retorque, would
thou completely remove said bolts to once again apply mighty ARP grease,
or merely add force?
Or mebby it don't rilly matter ;)
Will.
On Sat, 2009-01-31 at 13:50 -0600, James Hansen wrote:
> To torque or not to torque.
> That is the question...
> Alas, when man instill his fair steed with new gasketry, doth the gasket
> nay compress yet more?
> To compress, yet not have allowance for such compression doth seemly
> convey leakage past yon ill compressed gasketry.
> Retorque I must, but only to spec.
> For here, spec be a reflection of FINE thread and clamping forces not
> attainable by mere coarse threaded fasteners of dubious origin, plastic
> in nature, and length defined by the whim of the installer.
> Should good workmanship involve reading the manual for which fine ARP
> product did spring, final torque values may be produced, reflective of
> proper clamping force for such threadform.
> And now, I must bid adieu for the nonce.
> To live is to wrench.
> -james
>
> William J Toensing wrote:
> > Good discussion as I am using them in my Quantum turbodiesel. ARP
> > recommends torque to 80 pounds if using their specialized assembly
> > lube or 120 pounds if using 30 weight oil. I am using the ARP
> > provided lube & tightened in 10 pound stages until I reached their
> > recommended 80 pounds. Am still finishing the assembly & hope to get
> > the engine running tomorrow. Seems to me on my Dasher, they
> > recommended a retorque when warm & again when cold but no such
> > recommendations with this set of ARP studs so looking forward to more
> > comments. It is my understanding that you follow the ARP
> > recommendations, not the VW Bentley recommendations which use the
> > twist to yield bolts. When I took out the old VW head bolts, one
> > yielded at only 60 pounds & several took 120 pounds to break loose.
> > If I recall correctly, the Bentley recommends torque to 43 pounds &
> > then a 180 degree then or two 90 degree turns. Wonder what that
> > brings the effective torque to? Bill Toensing, Nevada City, CA
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> > Vwdiesel at vwfans.com
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> >
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