Timing Belt Change, Cam Shaft out of Sync! HELP!

EtherNut

Veteran Member
Joined
Aug 30, 2002
Location
Richmond, Kentucky
TDI
Passat, 1997, White
Ok, I was changing my Timing Belt and I hadn't tightned the nut on the cam pulley before I blipped the starter on the car to seat the belt.. I believe, when I blipped the starter, the camshaft pulley slipped on the cam shaft and my cam shaft is out of sync with the Injection pump and crank shaft. How do I get the Cam shaft back in sync or better yet, how do I make sure the Injection pump, crank shaft and cam shaft are all in sync?

I've manually rotated the engine and don't feel anything making contact so I think everything is ok, just not in sync.

OK, so I feel like an idiot... Please don't try to beat me up too bad...

THANKS IN ADVANCE!!!!!!!

EtherNut
 

GoFaster

Moderator at Large
Joined
Jun 16, 1999
Location
Brampton, Ontario, Canada
TDI
2006 Jetta TDI
This is really easy to fix. Take off the valve cover, upper timing belt cover, and the rubber plug in the clutch bellhousing. Rotate the engine to TDC #1, and then rotate it to the point where the locking tool can be inserted into the slot in the camshaft. Insert the cam locking tool, then loosen the center bolt for the cam pulley by 1 turn (do not remove it!!), knock the pulley loose from the camshaft (it will not come off because of the center bolt that you did not remove), then rotate the engine to TDC #1 based on the flywheel mark (which will carry the loosened pulley along with it). Torque the center bolt of the camshaft to specs, remove the locking tool. Rotate the engine forward two complete revolutions by hand, recheck that the locking tools can be inserted at the proper flywheel position, then remove all the locking tools and put the removed parts back on.

There's no need to remove the timing belt or the tensioner.
 

EtherNut

Veteran Member
Joined
Aug 30, 2002
Location
Richmond, Kentucky
TDI
Passat, 1997, White
GoFaster, I did that very thing! It worked! All is well in TDI land now.. After my TB change, my timing was WAAAAY advanced, I got that lined out and I was in good shape! Thanks!

EtherNut
 

Harvieux

Vendor , w/Business number
Joined
Aug 15, 1998
Location
Whittier,CA-USA
TDI
06 A5 Pkg.2 w/navi & ASEP
Yeppers, that would be alot easier than removing the TB or tensioner. I've been forced to perform this very same task a few times in the past when I rush a TB job and start to rotate the engine while forgetting to torque the cam sprocket bolt to it's 33 ft. lbs. Later!
 

Lug_Nut

TDIClub Enthusiast, Pre-Forum Veteran Member
Joined
Jun 20, 1998
Location
Sterling, Massachusetts. USA
TDI
idi: 1988 Bolens DGT1700H, the other oil burner: 1967 Saab Sonett II two stroke
I still fail to understand why the cam sprocket has to be loosened at all. I don't touch the cam sprocket and avoid this problem by not creating the opportunity.
Brian, You forgot to mention that the fuel pump has to also be at #1 TDC. Using the method you posted allows a 50/50 chance that the cam is at #1 compression/injection while the pump is at #4 injection. It is necessary to confirm that the injector pump is at #1 injection by means of inserting the pump lock pin when the cam is at #1 TDC.
 

GoFaster

Moderator at Large
Joined
Jun 16, 1999
Location
Brampton, Ontario, Canada
TDI
2006 Jetta TDI
That's true, but my reply was based on having an engine that runs (although not running well).

It is indeed possible to install the timing belt without taking the pulley off the camshaft, but it's a helluva lot easier to get over the pulleys if you have it off the end of the taper on the camshaft and slip the pulley over the end of the camshaft with the belt already on it ...
 

oilhammer

Certified Volkswagen Nut & Vendor
Joined
Dec 11, 2001
Location
outside St Louis, MO
TDI
There are just too many to list....
There's no key (little metal wedge) to keep the sprocket from moving on the camshaft? Leave it to VW...
Newsflash: some Chrysler engines have been this way since the early '90s, and some newer Fords are like this as well. This is a simple job if you have the right tools.
 
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