A8 Parts Forum  

Go Back   A8 Parts Forum > General Natter > Daily banter

Daily banter For everything, and anything that doesnt fit in elsewhere

Reply
 
Thread Tools Display Modes
  #321  
Old 18th March 2022, 11:19 AM
strummagnet strummagnet is offline
Senior Member
 
Join Date: Jul 2011
Location: Gosport
Posts: 401
Default

Quote:
Originally Posted by MikkiJayne View Post


Is that bushing squished like that due to the removal process or like that when removed? If its like that when removed is it due to the arm being fully bolted prior to the car suspension sitting normally, therefore under stress?

Quote:
Originally Posted by MikkiJayne View Post

Powdercoated exhaust hanger and tank straps, with new nuts.



Much better

After all the underside is done I can picture you reclining in your chair (under the car), shades on, tequila sunrise in hand and admiring the view......
__________________
Paul
Gosport UK
________________________
Audi S8 2002 FE Avus Silver / Extended Red Leather.
Daily Driver: BMW 3 series GT - Just more practical for my camping trips!
Reply With Quote
  #322  
Old 18th March 2022, 01:13 PM
MikkiJayne MikkiJayne is offline
Senior Member
 
Join Date: Jan 2012
Posts: 5,017
Default

I may or may not have done that already with the front end

Quote:
Originally Posted by strummagnet View Post
Is that bushing squished like that due to the removal process or like that when removed? If its like that when removed is it due to the arm being fully bolted prior to the car suspension sitting normally, therefore under stress?
The outer edge being mangled is because I run a drill down it to separate the rubber from the metal sleeve. Usually they are already separated most of the way round, so the drill just finishes it off so it pops out. The small chunk missing from the sleeve at the top is from me trying to lever it out before releasing it with the drill.

I'm doing the opposite lower arm this evening so I'll get some more pics.

Last edited by MikkiJayne; 18th March 2022 at 01:15 PM.
Reply With Quote
  #323  
Old 19th March 2022, 08:40 PM
MikkiJayne MikkiJayne is offline
Senior Member
 
Join Date: Jan 2012
Posts: 5,017
Default

This is the other control arm. This is the split bushing, the centre of which just pops out with a screwdriver





This is the other one. You can see how the rubber is detached from the outer sleeve



Not detached enough to pop out though. The sleeve is so corroded that it just splits with the torque from the screwdriver



Drill round the edge - this was so bad it needed a single hole, and then the drill pulled itself all the way round



Removed



Sleeve left in place



Saw through it to relieve the tension holding it in



Sometimes one cut is enough. In this case it wasn't so I made a second cut and then punched the middle bit out, then the sleeve came loose and popped out.



On to the floorpan, prepping for the subframe to go back in. This is one of the holes from the self tappers used to hold the heat shields on, now with a rivet and seam sealer



Water tight



Same thing again but in the tunnel



Grind off the stump of the stud, then open out the hole while pulling it down with the rotary tool



Blind rivnut inserted, again with seam sealer



and a bi-thread stud in the rivnut, held in place with blue loctite so it won't fall out, but could be removed in the future if nedessary. There were four more like this.



This is the new brake hose bracket which will be bonded in place. I've removed the seal sealer and e-coat behind it so its clean aluminium on both sides. The little hole is coincidental and just happened to be in the stock I was using. This piece was going to be the mockup, but it actually worked first time so the hole gets to stay and will provide extra surface area for the adhesive.



Attached Thumbnails
Click image for larger version

Name:	537.jpg
Views:	476
Size:	76.5 KB
ID:	28046   Click image for larger version

Name:	538.jpg
Views:	467
Size:	82.1 KB
ID:	28047   Click image for larger version

Name:	539.jpg
Views:	469
Size:	79.8 KB
ID:	28048   Click image for larger version

Name:	540.jpg
Views:	470
Size:	66.7 KB
ID:	28049   Click image for larger version

Name:	541.jpg
Views:	467
Size:	59.2 KB
ID:	28050   Click image for larger version

Name:	542.jpg
Views:	471
Size:	60.5 KB
ID:	28051   Click image for larger version

Name:	543.jpg
Views:	472
Size:	88.8 KB
ID:	28052   Click image for larger version

Name:	544.jpg
Views:	464
Size:	73.9 KB
ID:	28053   Click image for larger version

Name:	545.jpg
Views:	469
Size:	72.9 KB
ID:	28054   Click image for larger version

Name:	546.jpg
Views:	461
Size:	33.0 KB
ID:	28055  

Click image for larger version

Name:	547.jpg
Views:	468
Size:	32.3 KB
ID:	28056   Click image for larger version

Name:	548.jpg
Views:	451
Size:	44.1 KB
ID:	28057   Click image for larger version

Name:	549.jpg
Views:	458
Size:	38.0 KB
ID:	28058   Click image for larger version

Name:	550.jpg
Views:	455
Size:	43.5 KB
ID:	28059   Click image for larger version

Name:	551.jpg
Views:	453
Size:	45.1 KB
ID:	28060   Click image for larger version

Name:	552.jpg
Views:	467
Size:	81.8 KB
ID:	28061   Click image for larger version

Name:	553.jpg
Views:	462
Size:	97.4 KB
ID:	28062  
Reply With Quote
  #324  
Old 20th March 2022, 06:59 PM
MikkiJayne MikkiJayne is offline
Senior Member
 
Join Date: Jan 2012
Posts: 5,017
Default

Subframe today, but I started by glueing the brake hose bracket on so that could be curing. The adhesive has a nominal strength on aluminium of 22N per mm˛. The bracket has an area of 616mm˛ which gives 13552N of holding force in ideal conditions, or 1.3 tons. I reckon that should hold a brake hose



New bolts. I've used the D3 toe adjustment bolts as they're only 4mm longer than the D2 ones. I got mk5 Golf camber bolts, but unfortunately they are missing 8mm of thread on the end so aren't quite long enough. The D3 camber bolts are 10mm too long, so I may have to just get the Febest ones.

The two long ones on the right are for the outer toe rod joint, which are from an Amarok, and 5mm longer than the D2 bolts. We probably should have an alternative parts thread where I can list all this...



All assembled







It was about this point where my phone battery died, so no more pics unfortunately. I had to swap the headlight level sensor, and made a new arm for that at the same point. The rear dampers are painted and back in too.

There are a couple of jobs left before putting it back in the car - the diff mount bolts were on back order so those need swapping, new camber bolts as noted, and a few other bits of hardware. I'd also like to get the brakes assembled while its sitting on pallets and nice and easy to get to.

Finally, I need to make some alignment sleeves to line it up with the rear mounting holes, as the tool I made when I did Ricky D's doesn't work with the D3 bushes. Those are 20mm inner diameter, whereas the locating holes are 21mm diameter, so I'll print up some simple sleeves for these. There's no load on them as they are purely used to line it up, and being printed there's no issue leaving them in place.
Attached Thumbnails
Click image for larger version

Name:	554.jpg
Views:	450
Size:	72.9 KB
ID:	28065   Click image for larger version

Name:	555.jpg
Views:	457
Size:	103.4 KB
ID:	28066   Click image for larger version

Name:	556.jpg
Views:	450
Size:	98.4 KB
ID:	28067   Click image for larger version

Name:	557.jpg
Views:	448
Size:	93.0 KB
ID:	28068   Click image for larger version

Name:	558.jpg
Views:	451
Size:	106.8 KB
ID:	28069  
Reply With Quote
  #325  
Old 20th March 2022, 07:39 PM
S81 S81 is offline
Senior Member
 
Join Date: Jun 2020
Location: N ireland
Posts: 163
Default

This is really pretty much a full refurbishment,are you looking at 300 plus hrs ?
__________________
Audi S8 D3 07MY 5.2 V10 Daytona Grey
With Bang & Olufsen Advanced Sound System, Advanced Parking System, TV Analog/ Digital, Rear/Back Window blinds, Front and rear heated seats, Alcantara Roof, Extended leather Pack 2, Extended Aluminium pack, Carbon and Aluminium trim packs, RSE, PS2.
Daily driver
Audi A8 d4 2014 phantom black 3.0 tdi

Previously owned
Audi 80 1986 1.8 white
Audi 80 1990 2.0 red
Audi A4 1996 1.9 tdi green
Audi A6 1.9 tdi 2000 blue
Audi tt 225 2000 silver
Audi s8 d2 2002 fe grey
Audi a8 4.0 tdi d3 2006 black
Audi a8 3.0 tdi d3 2010 black
Reply With Quote
  #326  
Old 21st March 2022, 10:11 AM
Ronin Ronin is offline
Banned
 
Join Date: Jul 2019
Location: Wales
Posts: 847
Default

Nice touch with the carpet on pallets.
A typical workshop would probably just use 2 transmission stands or something and scratch the subframe.
Reply With Quote
  #327  
Old 23rd March 2022, 03:13 PM
strummagnet strummagnet is offline
Senior Member
 
Join Date: Jul 2011
Location: Gosport
Posts: 401
Default

Quote:
Originally Posted by MikkiJayne View Post
Subframe today, but I started by glueing the brake hose bracket on so that could be curing. The adhesive has a nominal strength on aluminium of 22N per mm˛. The bracket has an area of 616mm˛ which gives 13552N of holding force in ideal conditions, or 1.3 tons. I reckon that should hold a brake hose


The time and effort to 'do it right'

I would have just stuck a rivnut in there and bolted it
__________________
Paul
Gosport UK
________________________
Audi S8 2002 FE Avus Silver / Extended Red Leather.
Daily Driver: BMW 3 series GT - Just more practical for my camping trips!
Reply With Quote
  #328  
Old 23rd March 2022, 05:35 PM
tonupkid's Avatar
tonupkid tonupkid is offline
Senior Member
 
Join Date: Feb 2009
Location: Near Lichfield, Staffordshire
Posts: 2,245
Default

Presumably Rivnuts etc are not aluminium. Is there therefore a potential for galvanic corrosion in future, or does your use of sealant insulate he different metals from each other?
__________________
A journey of a thousand+ (epic) miles, begins with a single step, (to the door of an 8). Lau Tzu
Reply With Quote
  #329  
Old 23rd March 2022, 08:44 PM
MikkiJayne MikkiJayne is offline
Senior Member
 
Join Date: Jan 2012
Posts: 5,017
Default

I have aluminium rivnuts where they are appropriate, and considered one here but I don't have a reference for what's behind this sheet metal so adhesive was the way to go.

Now covered in seam sealer



New fuel filter



The old one was dated 2002 so likely the original



This is the D3 camber bolt which is 10mm longer than it needs to be. Its ugly but it does the job.

Attached Thumbnails
Click image for larger version

Name:	559.jpg
Views:	389
Size:	95.2 KB
ID:	28076   Click image for larger version

Name:	560.jpg
Views:	390
Size:	68.1 KB
ID:	28077   Click image for larger version

Name:	561.jpg
Views:	395
Size:	46.9 KB
ID:	28078   Click image for larger version

Name:	562.jpg
Views:	382
Size:	68.0 KB
ID:	28079  
Reply With Quote
  #330  
Old 26th March 2022, 07:17 AM
strummagnet strummagnet is offline
Senior Member
 
Join Date: Jul 2011
Location: Gosport
Posts: 401
Default

Quote:
Originally Posted by MikkiJayne View Post

The old one was dated 2002 so likely the original

Changed at recommended intervals

I wonder what it looks like inside?
__________________
Paul
Gosport UK
________________________
Audi S8 2002 FE Avus Silver / Extended Red Leather.
Daily Driver: BMW 3 series GT - Just more practical for my camping trips!
Reply With Quote
Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 05:46 PM.


Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.