Engine Out Pics

4.2 V8 40v Naturally Aspirated - 339bhp
Post Reply
paulyd65
1st Gear
Posts: 57
Joined: Wed Feb 17, 2010 10:43 pm

Engine Out Pics

Post by paulyd65 » Mon Nov 28, 2011 2:43 pm

Hi All,

Engine out pics as promised. 2 broken chain tensioners and one slightly work chain.

Should be all back together by the weekend.

Cheers.
Attachments
IMG_0647.JPG
Engine Out Pic 1
IMG_0648.JPG
Broken Chain Tensioner
IMG_0649.JPG
Broken Tensioners
IMG_0650.JPG
Empty Engine Bay

paulyd65
1st Gear
Posts: 57
Joined: Wed Feb 17, 2010 10:43 pm

Re: Engine Out Pics

Post by paulyd65 » Mon Nov 28, 2011 2:47 pm

Further pic showing the complete engine. Spot the broken tensioners.
Attachments
IMG_0652.JPG
The Engine - What a Beast!

User avatar
R33
4th Gear
Posts: 781
Joined: Mon Jan 18, 2010 1:24 pm

Re: Engine Out Pics

Post by R33 » Tue Nov 29, 2011 11:12 am

Wow it really is scary seeing the chains like that, out of sight out of mind.

I'm off to get an oil service...........

RoyalMile
Neutral
Posts: 14
Joined: Sat Oct 29, 2011 8:42 pm

Re: Engine Out Pics

Post by RoyalMile » Tue Nov 29, 2011 7:27 pm

Thanks for sharing this. Hopefully you'll get another 100K + once it's all back together.
I must say this is the second set of pics I've seen of broken guides/tensioners and is a little worrying. In both cases the plastic guides seem to have snapped (rather than worn or crumbled) and I wonder if oil changes are really going to reduce the chances of this kind of failure.

I lifted this from Wikipedia re: synthetic oil:

Potential stress cracking of plastic components made of polyoxymethylene (POM) in the presence of polyalphaolefin (PAO).

Ok, probably not relevant if we're using top-notch modern oils, but who knows what was used during the entire life of the car.

It will be interesting to see if the replacement timing parts have been improved or strengthened.

Hope the re-assembly goes well

paulyd65
1st Gear
Posts: 57
Joined: Wed Feb 17, 2010 10:43 pm

Re: Engine Out Pics

Post by paulyd65 » Tue Nov 29, 2011 9:08 pm

Hi.

Thanks for your feedback. I researched this very well before I committed to the spend and I have seen that the plastic cam tensioners seem to be an issue. The strange thing is that the tell-tale signs did not occur, I.e. rattling chains, etc. maybe I was lucky and just caught it before the engine may have gone bang.

I have to say Audi have been absolutely perfect. They have provided fixed prices to do all the work and have stuck to the schedule and they have also given a very nice brand new A6 courtesy car to bomb around in.

Hopefully it will be all back together by the weekend and it should also cure the annoying startup rattle that you get on the S4's.

On and by the way, I have serviced the car at the scheduled intervals and made sure that the correct oil was used at all times. I also checked this on the Audi service record from the previous owner.

Look like I might be a bit unlucky but hopefully another 100k will beckon. Saving up to wrap it next year and stick my 19" MTMS on.

Thanks again for your feedback.

User avatar
goose
2nd Gear
Posts: 226
Joined: Thu Aug 26, 2010 12:46 pm
Location: Berkshire

Re: Engine Out Pics

Post by goose » Wed Nov 30, 2011 11:47 am

"Saving up to wrap it next year and stick my 19" MTMS on."

wheels.. did someone say wheels??? piccies pls!!!!

goose
Current:
'08 Carbon Black BMW X5 3.0sd M Sport|Full white interior bulb kit|White LED Halos|De-badged
'72 Sunburst Yellow VW Karmann Ghia Coupe|1641cc|Engle 110 Cam|Weber 34 Carb|dropped spindles|Porsche 911 interior

Past:
'06 Phantom Black Pearl Audi B7 S4 - Milltek non res|BMC Panel|034 25mm RARB|SuperPro poly bushes|Apikol poly Snub|H&R Springs|H&R 10mm rear spacers|LCR Splitter|R8 caps|JCap|RS4 Pedals|EBC D/G disks & yellow pads|HEL brake lines|White sides/DRLs|De-tango'd

Post Reply

Return to “S4 (B6 Type 8E/8H) 2003-2005 / (B7 Typ 8E/8H) 2005-2009”

Who is online

Users browsing this forum: No registered users and 21 guests