How do you install a timing belt and set timing on a 2001 Daewoo Lonos?

Answer 1

Daewoo Leganza timing belt installation.

Dear owner, I work at an automotive repair shop in Gainesville, FL which is right next to a car rental who use Daewoo's for their rental cars, I've done close to 100 timing belts on various models of Daewoo cars.

Required tools:

13mm open end wrench10mm shallow and deep socket8mm socketlong flathead screwdriver17mm deep socketT50 torx socket1/4", 3/8ths and 1/2" ratchets and extensionsE10 inverted torx sockets6mm Allen wrench15mm open end wrench7mm socket12mm open end wrench14mm socket12mm socket8mm, 9mm and 10mm Allen head sockets19mm socketprybarneedle nose pliers

If you are doing this because your timing belt broke you will also need to buy a complete cylinder head, head gasket set, and both idler pullys. ALL DAEWOO MODELS WILL BREAK THE INTAKE AND EXHAUST VALVES WHEN THE TIMING BELT BREAKS.

Start by removing the air cleaner assembly from the throttle body, remove the air filter and housing jack up the vehicle and remove the wheel, remove the plastic shielding in front of the accessory drive belt assembly, remove the accessory drive belt, place a jack with a block of wood on top underneath the engine oil pan remove the front engine mount, remove the crank shaft pully ( the 4 Allen head bolts only not the 17mm bolt in the center.) remove the metal plate behind the engine mount bracket on the engine, remove the plastic timing belt cover 3 clips on top 2 10mm bolts on bottom. Rotate the engine until the #1 cyl. is at Top Dead Center on the compression stroke or line up the crankshaft timing mark with the mark on the inner timing belt cover ( notch in cover with notch in pully) on the camshaft pullys -- ( intake cam line up the line on the pully with the line on the inner cover)( exhaust cam line up the arrow on the pully with the arrow on the inner cover) loosen the 13mm bolt in the belt tensioner and using the Allen wrench rotate the tab until there is slack in the belt. Remove the belt. At this time I would recommend you replace the water pump, both plastic idler pullys as they tend to overheat and lockup, and the belt tensioner. Make sure all your marks are lined up, you may need a helper to hold the Exhause Cam in place as it tends to move during belt installation. Put the timing belt underneath the crankshaft pully, install the belt leaving the intake cam for last and NO BELT SLACK on the right side between the crank and the exhaust cam. Once the belt is installed rotate the crankshaft over 2 revolutions and make sure is rotates freely, and your timing marks are aligned perfectly if not the engine will not run properly, tension the belt as needed. Installation is the same as removal.

To clarify, on the DOHC engine, the intake cam gear has a line on it, and the exhaust cam gear has an arrow on it. These should be lined up with the corresponsing line and arrow on the VALVE COVER, pointing straight up. I just went through this process over the weekend, and spent quite a bit of time looking for these marking as I had removed the valve cover. Once I found them, it was plain and simple.

In addition, be sure to not over tighten the belt when reinstalling. The tensioner has markings on it for "old" and "new". DO NOT adjust past "new", as the car will sound like a jet engine, and the belt will not last for very long.

One more item that you may as well replace while you are in there is the cam position sensor if you have not already, as there have been issues with them, and the timing housing has to be opened to get to it.