Home Technical Discussions Volkswagen Passat: 1998-2005 (B5)

Volkswagen Passat: 1998-2005 (B5) Timing belt change? 2002 Passat 2.8L V6 30v


Permlink Replies: 7 - Pages: 1
Last Post: May 1, 2007 10:20 AM Last Post By: mdallroad
subseamike

Posts: 3
Registered: 04/20/07
Timing belt change? 2002 Passat 2.8L V6 30v
Posted: Apr 20, 2007 4:29 PM
  Click to reply to this thread Reply
I have pulled the front of the engine, replaced the water pump and all related rollers and tensioner, etc. This work is no issue but the one thing I did NOT do was to secure the cam shaft before tear down. Now come the obvious, How can I verify the timing before I replace the remainder of the engine front. The crank shaft has not moved but I'm sure that the camshafts have moved some. Keep in mind I have NO special tools, manual, etc. Will it be possible to recover from this mistake?

Subseamike
Child#1

Posts: 45
Registered: 06/12/06
Re: Timing belt change? 2002 Passat 2.8L V6 30v
Posted: Apr 20, 2007 6:44 PM   in response to: subseamike in response to: subseamike
  Click to reply to this thread Reply
Yes, you can recover. As long as you know the crankshaft is at TDC (you may need to temporarily install the timing belt cover behind the crankshaft pulley, and then the crankshaft pulley, to align the timing marks between the cover and crankshaft pulley). If you have a TDC locking tool (highly recommended), you should secure the crankshaft in the TDC position.

Next, you should move both camshaft sprockets so that the larger of the 2 holes on each of the camshaft sprocket plates face inward, towards each other (towards the center of the engine). If you have a camshaft alignment tool (a bar that has pins that fit into the camshaft sprocket plate holes to ensure proper alignment), this would help a lot. Not sure if one can hold the camshafts in place in this position without the camshaft alignment tool (when I changed my timing belt, I used both of these special tools to ensure nothing would move unexpectedly).
subseamike

Posts: 3
Registered: 04/20/07
Re: Timing belt change? 2002 Passat 2.8L V6 30v
Posted: Apr 20, 2007 9:27 PM   in response to: Child#1 in response to: Child#1
  Click to reply to this thread Reply
Thank you so much for your time, I will take your advice and align the camshafts horizontally with the large hole facing the center of the engine, TDC will be no problem. I will let you know how it comes out tomorrow and thank you again for your time.

Subseamike
subseamike

Posts: 3
Registered: 04/20/07
Re: Timing belt change? 2002 Passat 2.8L V6 30v
Posted: Apr 21, 2007 5:52 PM   in response to: Child#1 in response to: Child#1
  Click to reply to this thread Reply
Took your advise and set the cams horizontal with Large holes inward. Completed assembly and started the engine on the first try, no drips, no runs, no errors. The engine runs great! I guess I have proved one thing you can replace the timing belt using only shop hand tools, however if a person is not much of a mechanic then I would recommend purchasing the correct tools for the job. The main thing here is READ THE MANUALS BEFORE TEARING ANYTHING DOWN then you won't run into trouble as I did. I have ordered the correct tools as well.
Once again CHILD#1 you have indeed saved my rear and for that I thank you.

Subseamike
budpalumbo

Posts: 1,454
Registered: 12/09/03
Re: Timing belt change? 2002 Passat 2.8L V6 30v
Posted: Apr 22, 2007 12:43 PM   in response to: subseamike in response to: subseamike
  Click to reply to this thread Reply
Glad to see you got it back. Would have been ugly if you didn't get it right.
vwhack

Posts: 14
Registered: 12/02/05
Re: Timing belt change? 2002 Passat 2.8L V6 30v
Posted: Apr 22, 2007 5:01 PM   in response to: subseamike in response to: subseamike
  Click to reply to this thread Reply
wow, thats really scary info to give someone. the timing needs to be setup properly. with the proper tools. the idea is to lock the crank on tdc, then loosen the cam sprockets so they can free wheel.lock the cams with the bar, tension the new timing belt to 15 nm pull the tensioner pin, tension the cam sprockets to 65 nm, remove the crank lock, reinstall all pulleys paying attention to properly torque allens on crank to 25 nm also. turn the engine buy hand 2 full revolutions. you have to loosen the cams, they free wheel when loose to allow you to set up belt tension properly, otherwise threre is a possabilaty of having the belt too loose and developing a fault code for cam sensors, from the timing being slightly off. take it to a competent specialist, have them check it out! doing it at home is fine providing you have the tools. i appreciate how people save money doing it at home, but what if yo are off, have you priced a used 2.8 lately?
Child#1

Posts: 45
Registered: 06/12/06
Re: Timing belt change? 2002 Passat 2.8L V6 30v
Posted: Apr 24, 2007 8:34 PM   in response to: vwhack in response to: vwhack
  Click to reply to this thread Reply
Subseamike, I'm glad to hear you got back on track and everything put back together & running well again. You did a great job!

German-performance: Please take a look at Subseamike's original thread---all he wanted to know was how to get the timing of the crankshaft to the camshafts back again. He didn't ask for anything more on how to do the job. And my response only addressed how to get the timing back, nothing more. Your guidance on how to properly tension a timing belt is spot-on, and is by-the-book. Had Subseamike asked for instructions on how to properly tension the timing belt while retaining the crankshaft-to-camshaft timing, my response would have been far more detailed. Given that he didn't ask for all that information, and that he had already displayed a lot of mechanical aptitude by pulling the front of the carrier forward to work on the entire front of the engine, and change what he all did, I think he had a pretty good idea of what needed to be done.

It sounds like you have a tremendous background on proper repair procedures to assist people who can't always afford dealership service. I hope to see your advise more often in the future in these discussions so we can all learn more from you and benefit from your experiences.
mdallroad

Posts: 50
Registered: 08/15/05
Re: Timing belt change? 2002 Passat 2.8L V6 30v
Posted: May 1, 2007 10:20 AM   in response to: subseamike in response to: subseamike
  Click to reply to this thread Reply
For others that want to do this on their own I highly reccomend ordering the parts form www.blauparts.com if you order a timing belt parts kit from them they will also rent a tool kit that has several special tools incluging the cam lock, that makes the job easy to do correctly. The kits also simplify the parts order because they contain everything you will need, all from top german manufacturers. They even include the coolant! These are expensive tools that do not make sense for most people to own, but for the $35.00 rental fee they are worth every penny!

Point your RSS reader here for a feed of the latest messages in all forums

Popular Discussions:
Volkswagen Passat: 1998-2005 (B5)
2001 VW Passat GLX wiring question concern?
Passat: 1998-2005 (B5)