[urq] rear diff sealing

[Mike Sylvester]

Martin,

I'm glad I read that write-up as I was not aware that the ring gear is
different.
It looks the same, but I guess it wouldn't take much.

Mike


> -------- Original Message --------
> Subject: RE: [urq] rear diff sealing
> From: "Martin Pajak" <martin at quattro.ca>
> Date: Sun, February 12, 2012 8:15 am
> To: "'urq'" <urq at pacbell.net>, "'Ben Howell'" <bhowell at rmi.net>, "'Mike
> Sylvester'" <mike at urq20v.com>, "'urq Audifans'" <urq at audifans.com>
> 
> 
> Steve,
> 
> The torsen diff will only go into the new style 4kq diff housing.  Sorry, no
> way to retain locking capability.
> The good news is that the V8 diff comes with large 110mm flanges so it will
> bolt into the Ur-q without issue.
> 
> Here is a writeup on MG by Justin, I did it myself and took less than 2
> hours to complete the swap (including oven time).
> http://www.motorgeek.com/viewtopic.php?f=6&t=10133&start=275
> My swap was into a 115hp 4kq so I did not feel any difference when
> completed, plan was for some more power but sold the car before I had a
> chance to experiment.
> 
> HTH
> Martin Pajak
> 
> http://www.quattro.ca 
> 
> 1982 Audi Ur-quattro, SQ project
> 1983 Audi 80 quattro, Euro 2-Tür
> 1984 Audi Ur-quattro, 20vt with 6-speed
> 1993 Audi 90 CS quattro, 2.5 TDI with 6-speed
> 
> 
> -----Original Message-----
> From: urq-bounces at audifans.com [mailto:urq-bounces at audifans.com] On Behalf
> Of urq
> Sent: February-12-12 2:03 AM
> To: 'Ben Howell'; 'Mike Sylvester'; 'urq Audifans'
> Subject: Re: [urq] rear diff sealing
> 
> ... I had heard that it was originally developed for some sort of aircraft
> engine application.  I had a bit of difficulty getting the first tube, and
> it wasn't cheap ... it seems more plentiful and cheap now ... but it seems
> that there may be more than one variety.  
> 
> All I know was that I read the specs on the Permatex site ... non-hardening
> and tolerant of automotive lubricants, not acidic either.  It seems to me
> this would be a good alternative ... in fact I did a quick check and
> confirmed that it was originally designed for Rolls-Royce aircraft engines:
> 
> 	
> http://www.hylomar.com/index.php?option=com_content&view=article&id=64&Itemi
> d=138
> 
> Hylomar Universal Blue, that is what I would recommend.  As noted, it was
> recommended on the 
> 
> ... now, I'd love to hear more about how to swap a V8Q rear Torsen into an
> ury's rear pumpkin ... and whether or not there's a way I can retain the
> locking dogs ... 
> 
> Steve Buchholz
> 
> -----Original Message-----
> From: Ben Howell
> Sent: Saturday, February 11, 2012 8:32 PM
> Subject: Re: [urq] rear diff sealing
> 
> My understanding of Hylomar (from my RX-7 ownership days) was that is was
> developed specifically for use in o-ring sealing applications. Supposedly
> Mazda was having a heck of a time getting the large o-rings in-between rotor
> housing to seal and someone developed Hylomar for them and it worked like a
> charm.....but only in o-ring applications.
> 
> Ben
> 
> -----Original Message-----
> >From: Steve Buchholz
> >Sent: Feb 11, 2012 8:21 PM
> >Subject: Re: [urq] rear diff sealing
> >
> >The first thing that came to mind is the sealant I used for my old CB700SC
> engine, called Hondabond ... I see it mentioned on the Rennlist too. This is
> apparently like Permatex grey.  Then I remembered some stuff I used on the
> urq long ago called Hylomar.  This stuff is non hardening and is now
> supplied by Permatex too. Were I in your position, I'd go with the blue
> stuff.
> >
> >Steve Buchholz (mobile)
> >
> >----- Reply message -----
> >From: "Mike Sylvester" 
> >Date: Sat, Feb 11, 2012 11:01 am
> >Subject: [urq] read diff sealing
> >
> >Audi uses some sort of green sealant on the side cover as there is no 
> >gasket.
> >When you guys open it up to swap in the V8 torsen diff, do you reseal 
> >that with something?
> >
> >Mike
> >
> 
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