all vehicle comes with a timing cover of some sort. timing chain or timing belt. They all seem internal. but i understand what you are trying to get at . it can be considered external because it does not come in contact with the motor oil. pop the timing cover off and the belt is right there .
The timing marks on your 2001 Volvo S40 can be found on the outside of the main pulley. The timing marks will be scattered around the edge of the pulley.
There is no external timing marks on 2001 Saturn.
It has a timing belt,
There is no belt to change; it uses an internal timing chain.
120 000 km
I recall it cost meabout $750 on a 2001 V70
everyone says it needs to be changed around 105,000 miles
Today it cost me $700. I am online comparing prices to what I paid.
Yes, internal engine damage can occur if the timing belt breaks.
THe major internal threats are gridlock due to a divided Congress such as the 2001-203
The engine computer is also the alternator regulator.
The 2001 Honda Accord 4 cylinder and V6 both have a timing (cam) belt. The belt must be replaced every 105,000 miles. Warning: This is an interference engine. If they belt breaks you will have internal engine damage.