Re: Harmonic balancer?

["RoccoPhil" <roccophil@mindspring.com>]

The 1.8L and other variations of VW wc engines are indeed internally
balanced.  That is to say that the crank and the flywheel are balanced
together.

One of the problems people get into (although they can't really tell most of
the time) is when they either lighten the crank or flywheel and throw the
whole assembly out of whack.  "Oh cool!  I have a lightened flywheel!  Now I
am gonna fly!"  No.  Sure, the engine still runs but it loses efficiency due
to being out-of-balance.  Secondly, a drastically lightened flywheel without
a correspondingly lightened crank causes a loss of low-end torque.  All you
time-demons out there should know that.  There are various degrees of it
(out-of-balance).  On my engine that I am having made, I am having a
flywheel balanced to mate with the crank and achieve good balance as the
rest of the engine will be balanced.  I need to get a reconditioned one, so
the builder said he'd do a flywheel for me instead of me having to buy one
that isn't necessarily balanced to the existing crank.

-PK



>    I'm not aware of any harmonic balancer on a water-cooled VW.I thought
> they were internally balanced. The pulley in question is probably the
water
> pump, not power steering, pulley on a 16v motor. They do cost about $60
and
> can make a horrendous noise when their bearings die.
>    Gerry


>
> I was reciently told by a friend of mine that thinks he knows everything
> that there is to know, that by replacing your pulleys with lighter smaller
> underdrive pullies would screw up the harmonic balance of the engine and
> cause it have a short lifespan???  Now someone is saying that there is a
> seperate harmonic balancer from the pullies, so does that mean that
putting
> underdrive pullies on a rocco is ok?  I am assuming that it must be,
because
> i heard Brett talkin about getting some for his car, and i know that he
> wouldnt do anything that would hinder the life of the engine!!!!!  Just
> curious i guess, thanks.
>
> Jason Arms (Essex, VT)
>
> <snip>
> >Hello 'roccers...
> >
> >Needing a pulley for my 16V ('87).  This is the
> >sheetmetal pulley that fits inside the harmonic
> >balancer and runs (I think) the P/S pump.
> >
> >I believe it separates from the harmonic balancer, but
> >mine appear to be married by rust.  Mine is bent a
> >bit, but usable; I'd prefer to get it out of there.
> >Dealer wants way too much ($60!).  Daun did not have
> >one :(
>
>
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