[Vwdiesel] Piston Ring questions

[Stephen Kraus]

   - Question: I'm at Total Seals website, but for 1998 Volkswagen Jetta
   TDI its showing as a 1.7l instead of 1.9l


On Sun, Feb 10, 2013 at 1:16 AM, <lbaird119 at aol.com> wrote:

>   Smoke at startup.  Oil smoke or unburned fuel smoke?  Typically I'd say
> startup smoke wouldn't likely be rings but I've experienced where it was.
> Generally I'd first blame worn injectors.  Otherwise valve stem seals and
> the occasional turbo are more soon to blame on the TDI motors, so it
> seems.  Not too common for the seals on those either.
>
>   Boring's not bad.  Clean the block well and strip it.  You should be
> able to get it done for $20/hole or less.  It's the pistons that get you!
> :-)  As stated, if it needs bored, it's not worth doing wrong.  You'll get
> about 30K at best and use oil the whole time.  Experienced that one too,
> all on the older, IDI engines of course.  Only way to tell is to mic the
> bores.  If the pistons are worn a bit and cylinders a bit, new rings might
> just do but if the bore's worn beyond spec, it's just a time consuming
> band-aid.
>
>   How much blowby?  If you compare it to a gasser, a diesel will always
> shock you at how much blowby it has but is still perfectly fine.  If you
> don't like blowby, spend some more money (how much more depends on if
> you're buying Co-fap or Goetze rings!) and buy Total Seal rings.  There
> will be little blowby and once the boost hits, it goes almost completely
> away!  :-)  Well worth it IMO.
>      Loren
>