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You should always replace the timing chain, tensioners and sprockets whenever you rebuild the engine.
how do i change timing chain on 95 saturnsc1 1.9 sohc
I believe you need to replace a timing belt. Cause it uses timing chain which doesn't required to change as timing belt.
Always replace the timing chain, sprockets and tensioner rails whenever you remove the head.
It has a chain that should last the life of the engine.
Timing chain
The 6 cylinder Saturns were equipped with the "Ecotec" engine, which used a timing belt. Timing belts fail over time, and Saturn recommends that the belt be replaced every 100,000 miles. The 4 cylinder Saturns all used timing chains. With recommended service and normal use, the timing chain should not fail. It is recommended that you replace the timing chain and sprockets whenever the engine is rebuilt, but otherwise, the timing chain is considered to be quite reliable.
Never. The Saturn S series vehicles used a timing chain instead of a timing belt. And the chain is inside the engine, bathed in oil to keep it lubricated. The timing chain should be replaced whenever you rebuild the engine.
All of the Saturn 4 cylinder engines used a timing chain. The V6 Saturn's used a timing belt.
2004 saturn vue v6
Generally speaking, if you have properly maintained and not abused the engine, the timing chain should last until the engine is worn out. If you find that you have any burned valves, by all means replace the timing chain, pulleys and chain tensioners. But a timing chain is not like a timing belt. A belt will wear out after 80K to 100K miles. The chains do age, but since they are constantly in an oil bath, if you've kept the oil clean the chain should last a long time.
it has a timing chain, which should be towards the bottom of the engine, and it has a drive belt, which is external and in the front.