What else should I do during a timing belt job?
Been able to fix everything so far, all the stuff I'm doing isn't at random in hopes of fixing problems... It's all stuff that my car needs done. There isn't a single car that isn't 100% maintenance free. After this stuff I'll be done for a while.... And I'm pretty certain that it'll run pretty nice after this weekend. I've done all the work on my car for many years. This is the second timing belt on it and so the reason for starting this thread was for input regarding other things that should be taken care of while the engine and its components are easily accessible since I'm doing the timing belt.
Last edited by Boober; Jun 27, 2012 at 11:24 PM.
CCA4 might even confirm, that you can't fix everything and believe that you are done. If your car won't run after all these fixes, how will you trouble shoot? Good luck and welcome to the Audi world. It is indeed a labor of love and I've got parts in the mail coming right now. I wouldn't have it any other way.

Been able to fix everything so far, all the stuff I'm doing isn't at random in hopes of fixing problems... It's all stuff that my car needs done. There isn't a single car that isn't 100% maintenance free. After this stuff I'll be done for a while.... And I'm pretty certain that it'll run pretty nice after this weekend. I've done all the work on my car for many years. This is the second timing belt on it and so the reason for starting this thread was for input regarding other things that should be taken care of while the engine and its components are easily accessible since I'm doing the timing belt.
I think the list you posted earlier is plenty for now. I'm a fan of lumping projects together like this, especially maintenance related stuff and being that my B5 is my daily driver. There's a point of diminishing returns with that approach though, you don't want to get the whole car ripped apart and then get freaked out and overwhelmed about putting it back together. Good luck! If you have any questions or get stuck anywhere while you're doing the work just post up a new comment in this thread and we'll get you sorted out. Sounds like you've got a pretty good handle on things though.
And thanks man, I've cleared out the weekend for this overhaul. Doing everything at my friends dads place since he's got a huge garage and pretty much every tool one could ever need. Makes working on anything so much smoother when you've got so much to use. I'll take pics and make notes of anything that might help others in the future.
Quick question, anybody have any recommendations for an ac recharging kit? Summer's here and so cal is heating up, might as well do it... car's 12 years old now and never had ac recharged lol although it's still cold (not like it used to be though).
thanks all
I've used the recharge kits from autozone before with good results. I'm pretty sure the stuff in the can is very strictly controlled by the EPA so I don't think there's much variation between the kits besides the quantity of refrigerant and how fancy the can is
some shity news... Did the timing belt and cam chain tensioner and all the other stuff i needed to change. Car started fine and i let it run for about 10 mins before going home. while waiting at a light, clutch in and foot off the gas, car turned off. opened the timing belt cover completely worn down on the backside of the belt... the non-toothed side. got a code for implausible camshaft position sensor so it's safe to assume the belt broke.
so I've got a couple questions on how I should proceed:
I need to open everything again to see for sure, but is it possible to put the idler roller or the tensioner roller on too tight to where they don't spin causing friction on the backside of the belt?
Since the engine was at idle when it shutoff/belt broke, is it possible that the valves aren't damaged? What if i line up the cam sprocket timing mark with the valve cover and turn the crank to line up with the timing marks I made on it, setting top and bottom to tdc and put on a new belt and start it up... what could happen?
thanks
so I've got a couple questions on how I should proceed:
I need to open everything again to see for sure, but is it possible to put the idler roller or the tensioner roller on too tight to where they don't spin causing friction on the backside of the belt?
Since the engine was at idle when it shutoff/belt broke, is it possible that the valves aren't damaged? What if i line up the cam sprocket timing mark with the valve cover and turn the crank to line up with the timing marks I made on it, setting top and bottom to tdc and put on a new belt and start it up... what could happen?
thanks
Update: Talked to my friend who's an audi tech, said most likely something fell in the bottom cover and ripped the back of the belt. Also said since it was at idle when it happened I might have gotten lucky and not bent any valves. easiest way to check is to set it all to tdc, install a new timing belt and turn it over.
starting today, will post updates tonight
starting today, will post updates tonight
Im betting it's something that fell into the bottom tb cover, got jammed between the crank/belt and the bottom cover. Or the idler and/or tensioner roller failed. Fingers crossed, I have everything opened up again except the bottom cover. Ran out of time today so tomorrow I'll continue and post an update
Last edited by Boober; Jul 3, 2012 at 12:57 AM.
what up everyone, opened the lower tb cover... nothing was jammed anywhere, I thought I would find a bolt or something like that.
removed the belt, shredded, and took out the tensioner roller. This is the one that's bolted to the head right above the tensioner. It was defective. seized, stopped rolling and started melting through the belt as it was running. Ill post pictures shortly.
I've contacted Blauparts about it and they're having me start the 'corporate paperwork' to start a claim or report or whatever. The lady was nice and was pretty cool so I'll go along with what they say and hope they're going to be willing to help out if there is valve damage.
they said they'd most likely send out replacement parts for what failed and what became damaged as a result, namely the tensioner roller, timing belt, tensioner and idler roller. So, I'll put them on and do compression tests when I get the parts. for now im just waiting and hoping I got lucky and it'll be cool.
removed the belt, shredded, and took out the tensioner roller. This is the one that's bolted to the head right above the tensioner. It was defective. seized, stopped rolling and started melting through the belt as it was running. Ill post pictures shortly.
I've contacted Blauparts about it and they're having me start the 'corporate paperwork' to start a claim or report or whatever. The lady was nice and was pretty cool so I'll go along with what they say and hope they're going to be willing to help out if there is valve damage.
they said they'd most likely send out replacement parts for what failed and what became damaged as a result, namely the tensioner roller, timing belt, tensioner and idler roller. So, I'll put them on and do compression tests when I get the parts. for now im just waiting and hoping I got lucky and it'll be cool.


