This depends entirely on the engine in question. Some timing belts/chains have tensioners that automatically set the tension for you. However many more have specific procedures to correctly tension the belt/chain. Do it wrong and it usually ends in tears. If you are changing it yourself you get a workshop manual i.e. a Haynes manual for your car and follow the procedure carefully.
Changing a timing belt/chain isn't usually too difficult, they do tend to be time consuming though as you have to take all the other bits off first to get to the timing gear (hence the high labour charge from garages).
I would always recommend chaning the timing gear (pulleys etc.) rather than just the belt as these all wear together and the cost of something failing is usually expensive
A car's timing belt can start to melt and snap if it is fitted too tight. Most timing belts should have a half turn of play on them.
It does not have a timing belt, it has a chain.
when should i change the timing belt on a mercury villager
there is no timing belt. It is a timing chain that requires no maintenance.
remoremove the timing belt cover, remove old belt after aligning timing marks on cams and crank gear if still in one pc. if broken belt, align marks, install belt-making sure marks are still aigned when belt is tight
about 100,000 mile if it,s a timing belt
A 2000 Chevy S10 does not have a timing belt.
on vehicles? maybe the timing belt lost teeth or isn't tight enough due to a failed or failing tensioner.
It doesn't have a timing belt. It has a timing chain and it will last the life of the engine.
1998, 318 is fitted with a timing chain not a timing belt.
it should be pretty tight, but no so tight that it stretches it
Yes, the 2007 Ford Escape has a timing belt. The timing belt should be part of the regular maintenance on the vehicle.