[V8] Lapping - Honing - Ringing - V8 Bores

[Etdmail at cs.com]

Hi All,
A good Memorial weekend to you ..
Any well equipped (& experienced) machine shop
geared to handle Silicon/Aluminum bores found in
various Porsche, Ferrari, BMWs should be able to
do our Audi models, as well ..

An "old price" I was quoted once, just out of curiosity 
in the north-east, for a Porsche was $100 per bore!!
(Bare block delivered - 1 day procedure for 8 bores..)

As always your mileage may vary ...
Best,
Ed

----- Original Message -----
From: cobram at juno.com
Date: Thursday, May 25, 2006 2:47 pm
Subject: Re: [V8] body parts anyone?
To: bob.moy at cte.aecom.com
Cc: V8 at audifans.com

> You can, but you have to have a "moto-lab" that knows what they're 
> doing. I have corresponded with several V8Q owners from the former 
> Soviet Union that have done their engines at some "moto-labs" in Moscow.
> 
> These guys got internal components through Mahle in Germany, 
> including oversize pistons in one case.  Rings are available from US 
> suppliers, not OEM German, but they seem to work.
> 
> BCNU,
> http://www.geocities.com/cobramsri/
> There are two types of tragedies in life. One is not 
> getting what you want, the other is getting it.
-------------------------
> Message: 6
> Date: Thu, 25 May 2006 15:18:47 -0500
> From: sdewitt at stx.rr.com
> Subject: Re: [V8] body parts anyone?
> To: v8 at audifans.com
>  
> There is no coating on these engines, they use a high silicon 
> aluminium, and prior to final honing, the cylinders are washed with an 
> acid that removes the aluminium and leaves silicon as the wear surface. 
>  
> It is feasible that overboring can be done with no further steps in the 
> process.
-----------------
> Message: 4
> Date: Fri, 26 May 2006 03:15:52 -0700 (PDT)
> From: Carter Johnson <carterjohnson3 at yahoo.com>
> Subject: [V8] honing/ringing a V8
> To: v8 at audifans.com
>   
> Gents,
> Perhaps I'm being a bit pragmatic, but for the price of rebuilding a spent 
> 3.6 or 4.2, could you not purchase a newer ABZ 4.2 and install that?
>     
> That was/is my plan for the 4.2 Ur - when the 24x,000 mile 4.2 ABH goes 
> finally, I'll look for a 4.2 ABZ, which - according to my evil outlook - 
> should be plentiful in 5 years when A8's become the new V8 Quattro of the 
20-
> teens.  More plentiful than 90 3.6's (and certainly everything that 
follows) 
> and there are quite a few up for sale cheap cheap.
>     
> Carter
> W. Carter Johnson
> SileStone/Counterfitt of RI
> 401-789-3217 home
>  -----------------------------------
>Message: 6
>Date: Fri, 26 May 2006 08:38:56 -0600
>From: dsaad at icehouse.net
>Subject: Re: [V8] body parts anyone?
>To: V8 at audifans.com

>I have to ask - what is expensive?
>I almost certainly want a set. If my motor has good bores, I would rather
>re-ring it than put in another used block. The only issue left would be 
honing,
>but I would gamble that the rings would seat properly, again given that the
>bores were not too worn.
>I am sure others in my situation would feel the same.
>I also get the feeling that these bearings are somehow special for the V8?
>I would have assumed that they were used somewhere else also. It seems 
>many parts are shared with Porsche. Could these be as well?

>And I have never heard of Glyco - are they the OEM supplier?

>Thanks
>Dave
----------------------------------------
> Quoting sdewitt at stx.rr.com:
> If you need V8 bearings, I was able to sweet talk Glyco into selling me
> a small quantity of them. They are pretty expensive, but available.
>
> ----- Original Message -----
> From: dsaad at icehouse.net
> Date: Thursday, May 25, 2006 3:32 pm
> Subject: Re: [V8] body parts anyone?
> To: cobram at juno.com
> Cc: V8 at audifans.com, bob.moy at cte.aecom.com
>
> Deves seems to have them:
> http://www.deves.com/devesrings/cars_AUDI.html
> 
> And on this page, they say these rings are good for Alusil motors.
> http://www.deves.com/faq.html
> 
> The big problems seem to be honing and rod bearings.
> 
> Dave
> ------------------------------------------------------------------------