set TDC without tearing the front apart

Printable Version

Audi >> Audi Models >> Audi A6 >> set TDC without tearing the front apart

Page: [1]

Login Message << Older Topic   Newer Topic >>

set TDC without tearing the front apart - 4/6/2007 2:07:42 PM    wings7351   Posts: 94 Joined: 3/5/2007 Status: offline Hi, I'm about to change my cam tensioner seal and valve cover gasket. Fron the discussions in the forum, I need to put the engine at TDC however last time I did that was when I changed my timing belt, in which I had to remove everything in front of the timing belt. Do I have to the same thing here or there is other way to set it in a quick way? Any advice is appreciated. Post #: 1

RE: set TDC without tearing the front apart - 4/6/2007 2:17:42 PM    techbod Posts: 12777 Joined: 11/4/2005 Status: offline there is no quick way do it as the picture says that I posted otherwise it could cast more than you think if not lined up right http://www.audiforums.com/m_478033/mpage_1/key_/tm.htm#478339 _____________________________ Dave UK member I use a British spell checker so bad spelling is normal lol (in reply to wings7351) Post #: 2

RE: set TDC without tearing the front apart - 4/6/2007 8:18:03 PM    mpw2.7T   Posts: 156 Joined: 2/11/2006 Status: offline You do need to get to near top dead center, or you won't be able to compress the tensioner adequately.  What I did was just watch the tensioner while I was turning the crank bolt.  You can see the tensioner rise and fall.  I stopped when it was at the highest point.  I don't believe there is a requirement to be exactly at TDC.  (in reply to techbod) Post #: 3

RE: set TDC without tearing the front apart - 4/8/2007 11:19:13 AM    SSn   Posts: 151 Joined: 2/16/2007 From: Edina, MN Status: offline There are two TDC marks under the valve covers inside the engine for proper Cam alignment. (in reply to mpw2.7T) Post #: 4

RE: set TDC without tearing the front apart - 4/9/2007 1:01:18 AM    wings7351   Posts: 94 Joined: 3/5/2007 Status: offline I changed passenger side cam tensioner seal today; however when I moved to the driver side, I found out that the tensioner did not rise as much as the other one at passenger side; I put in the compression tool and I got barely any room to more the cam tensioner around to even pull the steel gasket out; of course I could not swap the rubber gasket either because of this. Is there a different TDC for the driver side? Or the driver side just won't rise as much? Mine is a 99 A6 2.8L. Thanks for any input. (in reply to SSn) Post #: 5

RE: set TDC without tearing the front apart - 4/9/2007 3:14:50 AM    mustang196718 Posts: 425 Joined: 1/29/2007 From: Orange County, CA Status: offline top dead center is top dead center with respect to the entire engine, not just one side or the other, so no, there isn't going to be a seperate tdc for the other side. i suppose the possibility that the drivers side just doesn't move as much. sorry, i'm definitely no expert on the 2.8s, but hopefully my input will help you a bit. _____________________________ 2000 Audi A6 4.2 Quattro Sport & Premium packages VAST Stage 2 custom ECU & TCU files 2003 SVT Cobra--sold 1967 Mustang--331 stroker 2007 Yamaha R6 (in reply to wings7351) Post #: 6

RE: set TDC without tearing the front apart - 4/9/2007 6:10:09 AM    mpw2.7T   Posts: 156 Joined: 2/11/2006 Status: offline Turn the crankshaft over a couple times and stop when the tensioner is at the top of its motion, (in reply to wings7351) Post #: 7

RE: set TDC without tearing the front apart - 4/9/2007 10:44:46 AM    wings7351   Posts: 94 Joined: 3/5/2007 Status: offline thanks mpw2.7t, when you did the job, did the same thing happen to you? I'm just wondering why this is happening. (in reply to mpw2.7T) Post #: 8

RE: set TDC without tearing the front apart - 4/9/2007 7:57:41 PM    mpw2.7T   Posts: 156 Joined: 2/11/2006 Status: offline Yes, I had the same thing happen.  I don't know how that system works, but I do know that when you turn the crank, the adjuster cycles up and down.  If you leave it in the uppermost position, you will get the slack you need to remove the seal and clean the area. Good luck!  (in reply to wings7351) Post #: 9

RE: set TDC without tearing the front apart - 4/9/2007 11:19:20 PM    wings7351   Posts: 94 Joined: 3/5/2007 Status: offline Thanks to everyone. I put the bolts back onto the tensioner assembly, turned the crank shaft, and it did rise up and down. The top position is not on TDC, but somewhat 90 degrees more on the cam shaft. mpw2.7t, I guess it did not rise up yesterday when I turned the crack shaft was because I had the bolts loose when I did that. Does it make sense? what's driving the tensioner up and down? (in reply to mpw2.7T) Post #: 10

Today's Posts
Most Active Topics
Make A Donation
Forum Rules & FAQ
RSS Feeds

Audi Prices

Audi Cars
Audi A6 Audi S3
Audi A4 Audi S4
Audi TT Audi S6
Audi Dealers
Audi Clubs

Top 10 Posters
cincytt 14786 pandaxpress 14483 techbod 12777 onepoint8tee 10838 jestnomen 10682 awdaholic 10051 badluckaudi 9131 karl 8984 chaos92287 8044 i3uddha 7313

New Vendors
AMSOIL - Performance Oil Technology
Penske Audi West Covina
Royal Purple
GetCoolParts.com
K&N Engineering, Inc.