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  1. #1
    Established Member Two Rings roboto_1337's Avatar
    Join Date
    Jul 05 2016
    AZ Member #
    375740
    My Garage
    2006 S4 6MT
    Location
    Ontario, Canada

    Adventures with timing

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    So I've had a bit of a rattle on startups all winter... sometimes worse than others.... sounds like the infamous guide is at its wits end... I've ordered some parts and am going to start on the pull and timing service of my B7.... she's got 201k km on the clock and I think that it's been good so far.. I'm going to be doing a couple of other things along with this job and am going to try my best to post up the job as I can... it may be only once I'm done that I can throw up some more info.

    Here's what's planned.
    Chase down some minor oil leaks (oil cooler o-rings specifically).
    Check valves and valley pan gasket.
    new engine mounts (034 street density).
    new snub mount.
    PCV valve.
    Mechanical adjuster rebuild (JHM).
    upgrade lower left rail with RS4 metal guide.
    new chains.
    new guides.
    new tensioners.
    new alternator belt.
    new valve cover gaskets.

    There are other jobs that I would like to do at this time, but it looks like my wife is going to be driving the S4 more in the future so I'll be holding off on:
    Intake Spacers (I know I'm in there but it's really not needed).
    JHM solid short throw shifter.
    JHM light weight crank pully and 6-rib belt / pully / tensioner upgrade.
    Catch can installation.
    Hotchkis swaybars
    Rear dif mount.

    I'm kinda on the fence about doing the A/C compressor because I know that it's easy to get at and work on with the engine out, however I'm not 100% sure that it's a bad compressor, either way I'm going to have my mechanic take a quick peek when I have him drain the A/C system... if it's the compressor I'll likely rush one in to replace it while I have the car on blocks.

    Wish me luck and as always I'm open to advice from anyone with good/bad experiences with this.

  2. #2
    Veteran Member Four Rings
    Join Date
    Jun 18 2010
    AZ Member #
    60418
    My Garage
    1991 Escort Wagon
    Location
    East of Cincinnati

    Typically you probably won't need the chains, as long as you mark them as to which direction they go.
    Old Geezer, formerly known as Stud Muffin

  3. #3
    Established Member Three Rings Terry.Reese's Avatar
    Join Date
    Oct 05 2015
    AZ Member #
    359932
    My Garage
    2005 Audi Allroad 2.7 Biturbo V6
    Location
    Billings, MT

    Never a bad thing to refresh chains, some can get stretched over time. And most kits come with them already. but that is personal preference.

  4. #4
    Senior Member Two Rings richB7S4's Avatar
    Join Date
    Jul 16 2013
    AZ Member #
    119055
    Location
    MD

    Even if your A/C compressor is good. Consider when they were last replaced. If it is still the stock one and with your mileage, might consider replacing it nevertheless. It is a big job to replace the compressor. Save on the labor now rather than pay more in the near future to replace the compressor.

    Also don't forget the engine coolant temperature sensor. The location is a PITA and with the engine out it makes it easy.

    Sent from my LG-D851 using Tapatalk

  5. #5
    Established Member Two Rings roboto_1337's Avatar
    Join Date
    Jul 05 2016
    AZ Member #
    375740
    My Garage
    2006 S4 6MT
    Location
    Ontario, Canada

    So, I thought that I would have some parts coming in today... so as to not get too far ahead of myself I'm pumping the brakes until Monday to start. Spoke with my mechanic (VW, Audi, Porsche specialist) about the A/C his opinion was that 90% of A/C problems are leaks.... I needed to de-inventory the refrigerant anyway so we took a look and I still had over 80% in the system... He suspects (at a glance) that it is the compressor due to the fact that this is a common problem on these vehicles... only issue is now that due to time constraints I think I'm going to push off the compressor work until late May.

    I was going to use the original chains, but the kit I purchased was a great price and came with the chains so I figured why not... it was cheaper to get the kit with the chains than buy all parts on their own.

    I'm going to enjoy the weekend, and keep studying my DIYs and manuals in preparation to dive in on Monday.

    I should also make note that I'm doing this work myself with the exception of charging the A/C system so the only labour cost is my very little free time hehe...

    Keep you posted.

  6. #6
    Established Member Two Rings roboto_1337's Avatar
    Join Date
    Jul 05 2016
    AZ Member #
    375740
    My Garage
    2006 S4 6MT
    Location
    Ontario, Canada



    Plugging away. To be continued tomorrow. Having some problems getting the 6mm hex bolts off the rear drive shaft. Is there a reason the DIYs say to unbolt here? Or is it to save on tranny oil from disconnecting at the diff?


    Sent from my iPhone using Audizine

  7. #7
    Established Member Two Rings icanfly's Avatar
    Join Date
    Jan 12 2012
    AZ Member #
    86544
    My Garage
    06 B7 S4 | STI Powered HandBuilt TarmacRallyCar | Skydiving Rig
    Location
    Looking for a canyon to carve.

    Quote Originally Posted by roboto_1337 View Post
    Plugging away. To be continued tomorrow. Having some problems getting the 6mm hex bolts off the rear drive shaft. Is there a reason the DIYs say to unbolt here? Or is it to save on tranny oil from disconnecting at the diff?

    Sent from my iPhone using Audizine

    To start, I sprayed them all down with PB Wrench / Liquid wrench a few times and let it sit overnight. I had to use a rubberband* on a few of mine and then beat the hell out of the coupler with a rubber B.F.H. until it seperated (make sure you put a rope or something around the end or it will fall in your face if you're note careful. I didn't realize how much it would droop once decoupled.. Once I got it, I just replaced the all the 6MM's so I didn't have to deal with it next time. Hope that helps.




    *get a wide rubberband, and put that between the bit and the bolt head to get a little more grip if you're stripping them out.
    slow is fast...

  8. #8
    Established Member Two Rings roboto_1337's Avatar
    Join Date
    Jul 05 2016
    AZ Member #
    375740
    My Garage
    2006 S4 6MT
    Location
    Ontario, Canada

    Quote Originally Posted by icanfly View Post
    To start, I sprayed them all down with PB Wrench / Liquid wrench a few times and let it sit overnight. I had to use a rubberband* on a few of mine and then beat the hell out of the coupler with a rubber B.F.H. until it seperated (make sure you put a rope or something around the end or it will fall in your face if you're note careful. I didn't realize how much it would droop once decoupled.. Once I got it, I just replaced the all the 6MM's so I didn't have to deal with it next time. Hope that helps.




    *get a wide rubberband, and put that between the bit and the bolt head to get a little more grip if you're stripping them out.
    yeah... I currently have the coupling soaked in PB... I've been turning the shaft by hand but will run some wire around it to hold it when she drops... I think I'm gonna need a bigger hammer

  9. #9
    Established Member Two Rings roboto_1337's Avatar
    Join Date
    Jul 05 2016
    AZ Member #
    375740
    My Garage
    2006 S4 6MT
    Location
    Ontario, Canada

    PB and a "loving touch" managed to get her

  10. #10
    Established Member Two Rings roboto_1337's Avatar
    Join Date
    Jul 05 2016
    AZ Member #
    375740
    My Garage
    2006 S4 6MT
    Location
    Ontario, Canada



    Slow and steady.... got the engine and tranny out and separated. I would say that the hardest part about this is the shifter box as it seemed to be what gave the most problems. I didn't drop the subframe as I would like to avoid alignment.

    The use of the engine load balancer was quite useful.


    Sent from my iPhone using Audizine

  11. #11
    Established Member Two Rings roboto_1337's Avatar
    Join Date
    Jul 05 2016
    AZ Member #
    375740
    My Garage
    2006 S4 6MT
    Location
    Ontario, Canada



    Started the day by removing the wiring harness and valve covers. Decided that was a good time to tackle the valley pan and check valves. It looks like the PO did the check valves as both were in good working condition. Replaced them anyway along with the oil sprayer. If anyone wants my used ones shoot me a PM with an offer.

    Managed to get the cage off the back and get at the chains and low and behold the infamous guide is holding on by a thread. Broken into 3 pieces. Very happy to find that knowing that all this work isn't for nothing.

    I also removed the A/C compressor before I got at the chains. Very easy with the engine out.

    Bed time. More tomorrow.


    Sent from my iPhone using Audizine

  12. #12
    Veteran Member Four Rings gcoy's Avatar
    Join Date
    Apr 06 2009
    AZ Member #
    40835
    My Garage
    2005 B6 S4 6mt Avant & 2001 B5 S4 6mt Avant (Sold) & 2007 VW Passat 3.6 4Mo wagon
    Location
    Boise Id

    Nice work !!!
    Current:
    2005 Audi S4 6spd Avant
    2001 VW Passat 1.8t
    2009 GMC Denali truck

    Past:
    2007 VW Passat 3.6 VR6 4mo Wagon
    2004 Audi tt
    2001 Audi S4 6spd Avant
    1998 VW 1.8t wagon

  13. #13
    Established Member Two Rings roboto_1337's Avatar
    Join Date
    Jul 05 2016
    AZ Member #
    375740
    My Garage
    2006 S4 6MT
    Location
    Ontario, Canada



    So spent a lot of the day cleaning.... got the o-rings replaced in the oil cooler (one was very shitty) cleaned up the engine. You'll see from the pics that there is a major difference.

    Got the big boy RS4 guides installed and I must say they look pretty sexy...

    Experiencing the first major setback as I broke the guide on top of the electrical cam adjuster... in hindsight it was a happy accident because they were pretty worn. So now I wait to have them shipped. The job is on hold until they show up. I'll probably install the next A/C compressor, receiver/drier and orifice tube in the meantime.

    Also suckered myself into a new clutch while I wait...


    Sent from my iPhone using Audizine

  14. #14
    Established Member Two Rings E-SWIFT's Avatar
    Join Date
    May 07 2009
    AZ Member #
    42194
    My Garage
    2001 Bmw M5,
    Location
    philadelphia

    You give me hope
    04 A6 S-line, Revo Stage 2, Forge DV,Samco TBB, AWE S-Flow,Manga-Flow Exhaust,19"Sportec Bi-color w/245/35/19, 35% tint.

  15. #15
    Established Member Two Rings roboto_1337's Avatar
    Join Date
    Jul 05 2016
    AZ Member #
    375740
    My Garage
    2006 S4 6MT
    Location
    Ontario, Canada

    Quote Originally Posted by E-SWIFT View Post
    You give me hope
    Lol.... my neighbors all seem to use the word "ambitious". None of them own and Audi hahaha...


    Sent from my iPhone using Audizine

  16. #16
    Established Member Two Rings roboto_1337's Avatar
    Join Date
    Jul 05 2016
    AZ Member #
    375740
    My Garage
    2006 S4 6MT
    Location
    Ontario, Canada

    So didn't do much today because I'm waiting on parts.... that being said I got all the A/C work done and blew the system out with compressed air as per the Bentley. They said air or nitrogen. Didn't have nitrogen.

    New orifice tube and accumulator. Old compressor wouldn't drain any oil so I imagine that was part of the problem withbit


    Sent from my iPhone using Audizine

  17. #17
    Established Member Two Rings roboto_1337's Avatar
    Join Date
    Jul 05 2016
    AZ Member #
    375740
    My Garage
    2006 S4 6MT
    Location
    Ontario, Canada

    A couple of learning points that I would like to point out... when removing the chains be sure to remove the gear on the exhaust cam even if you're not planning on doing anything to it... it makes setting the timing easier. Also the best way to ensure that the TDC pin is in, is to get a flashlight and look up through the upper oil pan drain and find the hole. I used a pry bar with 2 flywheel bolts installed to move the crank in order to get it in the right spot. This can also be done with the alternator, but I had removed my belt. I'm at work today and no parts yet... could be Wednesday before I get back to the beast. I hope to have it re-assembled and be re-installing on Wednesday... but things rarely go as planned.

  18. #18
    Established Member Two Rings roboto_1337's Avatar
    Join Date
    Jul 05 2016
    AZ Member #
    375740
    My Garage
    2006 S4 6MT
    Location
    Ontario, Canada

    waiting on parts... not likely to be Wednesday... gonna be on nights at work might give me some time in the day to work on her.

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