- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
You won't need a manual unless you are going to tackle the job of replacing the belt. Most engines these days are known as "interference engines" - that means if the camshaft(s) stop going round or the timing is lost the piston(s) will hit any valves that are open. The result is either bent valves requiring the removal of the cylinder head in order to replace the valves or greater damage, sometimes completely writing off the engine.
In the case of a broken timing belt it is advisable to carry out valve gear and cylinder leakage checks before any rectification work begins, including belt replacement. Such checks are best carried out by an experienced operative...
If the vehicle was idling proper before timing belt replacement, it is possible the valve timing is not correct due to belt not being installed/lined up properly. If belt was changed because it was broken, chances are there is valve damage internal to the engine causing this issue
A broken timing belt will allow the valves to hit the tops of the pistons if your vehicle is equipped with an "interference" cylinder head. A "non-interference" head will allow the valve train to survive a broken timing belt (or chain) incident.
Doesn't matter what engine it is as long as it has valves and uses petrol (not diesel), the camshaft lobes at cylinder #1 should always face upwards. This positions the valves at it's closed setting (combustion), this is known as Top Dead Center or TDC. With this in position, all your timing markers should align on their marks (cam pulley, crankshaft pulley or flywheel ring gear). Do not confuse yourself with other cylinders being this and that, as long as number 1 cylinder is at TDC or 0* you have set your timing correctly.
IF the crankshaft turned ANY after the belt broke, you have bent the valves. The valves only have room to extend when the piston is down in the cylinderhead. IF the piston comes up, and the valve is down still, due to a broken belt that cannot turn the cam to let it back up.... BAM!