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[tech] Engine Balancing



Just as a side note, the reciprocating components, pistons, pins and
rods, are balanced statically. The rotating components have to be
balanced dynamically.
Dan

Craig Williams wrote:
> 
> I'm not sure how it was done, but I beleive it was spun. Now that I think
> about it, I think that it was $240 for the whole thing. I do know that my
> machine shop sent everything out to the balancer that they use, and they
> don't do the balancing in their own shop. Sounds pretty common for the shops
> in my area.
> 
> == Craig Williams
> 1981 Scirocco S 2008cc 16V (As seen in 01-2001 Sport Compact Car) 15.114 @
> 91 MPH
> 2001 Passat Wagon, 1.8t (For the Wife and Son)
> 1991 Passat Wagon 2.0 16V (For Sale)
> 2000 Saab Viggen (20 psi, Turbo charged monster)15.047 @ 94 MPH
> Northern California, USA
> 
> ----- Original Message -----
> From: Donald Walter <dswalter.wi@netzero.net>
> To: Craig Williams <roccolister@hotmail.com>; Benjamin Harder
> <vwtype53@yahoo.com>; <scirocco-l@scirocco.org>
> Sent: Thursday, January 31, 2002 12:29 PM
> Subject: RE: [tech] Engine Balancing
> 
> > Did you have it Static balanced or Dynamic (Spun) balanced?  $200 sounds
> > cheap for balancing.
> >
> > -----Original Message-----
> > From: scirocco-l-admin@scirocco.org
> > [mailto:scirocco-l-admin@scirocco.org]On Behalf Of Craig Williams
> > Sent: Wednesday, January 30, 2002 1:21 PM
> > To: Benjamin Harder; scirocco-l@scirocco.org
> > Subject: Re: [tech] Engine Balancing
> >
> >
> > Ben,
> >
> > I had my bottom end all balanced when I built my 2008 cc motor. It was
> > pretty reasonable, about $200 I think, and they did everything from the
> > crank pulley, bolts, crank, pistons with rings and wrist pins, rods,
> clutch,
> > pressure plate flywheel and all the bolts and nuts for all those things to
> > be hooked together. It's way better then what the factory does.
> >
> > I can tell you that my engine is super smooth. I've got a polyurethane
> front
> > motor mount and a VW Motorsport rear. I can hold my RPM"s at 7000 and it's
> > still smooth inside the car.
> >
> > Not that balancing can add horse power or anything, but it can improve the
> > speed at which your engine can develop it's rev's, lengthen the life of
> the
> > motor and help your engine rev higher as well.
> >
> > I'd do it again. -- Craig Williams
> > 1981 Scirocco S 2008cc 16V (As seen in 01-2001 Sport Compact Car) 15.114 @
> > 91 MPH
> > 2001 Passat Wagon, 1.8t (For the Wife and Son)
> > 1991 Passat Wagon 2.0 16V (For Sale)
> > 2000 Saab Viggen (20 psi, Turbo charged monster)15.047 @ 94 MPH
> > Northern California, USA
> >
> > ----- Original Message -----
> > From: Benjamin Harder <vwtype53@yahoo.com>
> > To: <scirocco-l@scirocco.org>
> > Sent: Wednesday, January 30, 2002 10:28 AM
> > Subject: [tech] Engine Balancing
> >
> >
> > > First of all, are VW engines balanced internally from the factory?  Or
> > > do they also use the crank pulley to help in balancing?  Or is the
> > > pulley balanced by itself?
> > >
> > > I am looking to rebuild a stock bottom end and will be reassembling
> > > the engine with original components...just new bearings, rings, etc...
> > > so, is there any real reason to have the engine re-balanced...is the
> > > "factory" balance bad enough that I will notice a big difference by
> > > having a shop balance the engine?  Originally, I thought that I would
> > > leave the engine alone and just have the PP/Flywheel combo balanced,
> > > but if the engine is not internally balanced, this would be pointless.
> > >
> > > So, any thoughts?  TIA
> > >
> > >
> > > =====
> > > Benjamin Harder
> > > 86 Scirocco 16v
> > > 80 Scirocco
> > > 93 Passat GLX
> > >
> > > http://www.geocities.com/vwtype53/
> > >
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