Ok you didn't mention this in first reply. It will stop moving like you are saying it is they are meant to move a little to keep tension on the belt. As long as you did this you should be ok.
1. Ensure crankshaft and camshaft timing marks are still aligned. Install the timing belt. See Fig. 7 . Turn the timing belt tensioner counterclockwise to tension the timing belt. Turn tensioner until the pointer aligns with
the notch on the rear timing belt cover. Tighten automatic tensioner bolt to specification. See TORQUE SPECIFICATIONS .
2. Using crankshaft center bolt, turn crankshaft clockwise (as viewed from timing belt end of engine) 2 full revolutions. Ensure timing belt tensioner pointer is still aligned with notch.
3. If timing belt tensioner is correctly aligned, install timing belt cover. See Fig. 3 . Install the engine mount bracket on the timing belt end of engine. Position power steering hose in place, and install clamp bolt. Install
crankshaft pulley. Install serpentine accessory drive belt.
4. Install right front splash shield. Install right front wheel. Install air filter housing and resonator. Connect air intake temperature sensor connector. Connect negative battery cable.
Fig. 7: Identifying Timing Belt Routing
Courtesy of DAEWOO MOTOR AMERICA, INC.
Put the cover on an dlet it go. Make sure all pulleys are tight as well (18 ft. Lbs) from what I gather you have done everything correctly and kind of worried about something that sholdn'tbe. Part of the problem is as the cams turn it will cause the tensione to move due to valve action from springs. If the cover was on and you started car you wouldn't notice it anyhow.
Monday, November 19th, 2012 AT 8:09 PM