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The timing chain tensioner for the 1.6L engine? If so it has two. One is located behind the inspection panel located above the fan belt main pulley just under the valve cover. Two nuts and a six 10mm bolts hold it in place. It is sealed with silicone engine sealant.
Support the engine from underneath and remove the top motor mount for easier access.
Two bolts hold it in place. Auto parts stores sell it for around $50.
The second tensioner in found in the lower block area behind the timing chain cover/ water pump. That tensioner is made up of two components. The spring tensioner which can be removed from the engine easily. Remove the two bolts on the side if the engine directly behind the water pump output and it pulls right out. The other component is the nylon tensioner track or guide that actually pushes against the timing chain. That is the part that wears out and requires the cover to be removed. To remove the cover you have to remove all the 10 mm bolts including the two in the top from the head and two in the bottom from the oil pan. There is also two 12mm bolts near center the cover near the water pump. Removal of this cover my damage the head gasket part that seals the head above to the cover. I have always pulled the head off the engine and replaced the head gasket when opening the timing chain cover. I don't know if it is possible not to without causing oil leaks by not replacing the head gasket.
Here is a link to a photo showing the upper cover removed.
http://www.Flickr.com/photos/92225127@N00/534508640/in/photostream/
What else can I help you with?
How do you change the lower timing tensioner on a 1997 200sx 1.6?
Remove the center retaining nut on the tensioner. You will need to use something to jam the pulley, so it will not turn.
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There is no timing belt. There is timing chain. You do not need to ever change it, they last. Except if you change smtg else around, like water pump.
Does 1997 Nissan 200sx have timing belt?
no it has 2 timing chains...an upper and a lower
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To change the timing belt on a 1997 Isuzu Trooper with a 3.1L diesel engine, first disconnect the battery and remove any components obstructing access to the timing belt cover. Then, align the timing marks on the crankshaft and camshaft to ensure proper timing, and remove the old timing belt along with the tensioner. Install the new timing belt, ensuring it is properly tensioned and aligned with the timing marks, and then reassemble all components in reverse order. Finally, reconnect the battery and start the engine to check for proper operation.
