[Vwdiesel] Rabbit medicare ----( OLD age security ?)

[James Hansen]

Yes, exactly. To add, the lack of high enough power setting causes lower
cylinder pressures, which in turn cause lower piston ring to cylinder wall
pressure, causing insufficient wear to lap in the rings to the cylinder
walls.  Essentially, the high spots from honing get worn away before the
rings get worn to fit, letting excess oil stay on the cylinder walls. This
oil gets burned on, and makes the glaze.

Higher cylinder pressure equates to higher ring to cylinder wall pressure.
So drive the snot out of it...

Interestingly enough, new race motors get a very very fine hone finish on
the cylinders now. Guess we'll see how well that works...
-James

-----Original Message-----
From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com]On
Behalf Of Kelly McMullen
Sent: Tuesday, March 22, 2005 11:57 AM
To: vwdiesel at vwfans.com
Subject: Re: [Vwdiesel] Rabbit medicare ----( OLD age security ?)


Glazed cylinders occur when operator doesn't use high enough power
settings during break-in, too much oil stays on the cylinder walls, and
burns on in place, creating a layer that the rings won't remove, and
prevents the necessary metal to metal wear to seat the rings.
Characterized by high oil consumption, possibly high blowby, and no
decrease in oil use over break-in period. Requires removal of the
cylinder, re-honing, and new rings to fix.
KM
A&P

H .  Hagar. said:
> http://www.sacskyranch.com/metfram.htm
>
>
> Hagars "Skyranch" ?   sure like that name.  ----better than  "Hagars
> Hole".(helicopter term)
>
> The flyboys are a good source of  information ---I shall see if I can find
> the
> explanation of "GLAZED" cylinders.   If I do I shall post the link.
>
> Hagar.
>
> PS:   NO holes in Bunny Bondos safety net.  She will die in a dignified
> way of OLD
> age.-------I am taking her with me.
> _______________________________________________
> Vwdiesel mailing list
> Vwdiesel at vwfans.com
> http://www.audifans.com/mailman/listinfo/vwdiesel
>

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