Post by
480sx »
https://forums.nicoclub.com/480sx-u50548.html
Sun Jan 20, 2008 6:37 pm
Its so easy to check the timing chain main, just pop off the valve cover and see how the chain thats attached to the cams looks. Its possible that the lower timing chain broke though. To check that, get a 27mm socket and attach it to the main pulley bolt. If you can turn the engine, and the cams dont turn then the lower timing chain is broken. Also check to see if the timing chain guide, that connects to the top of the heads(under the valve cover between the two cam sprockets) is broken off. That can cause some pretty serious damage, or even result in a broken timing chain.
The thing is, when a timing chain breaks you can have a world of damage done to the engine. Pistons can hit valves is the big thing. That would mean you needed to pull your heads and replace valves.
That car is for sure worth less than 1000 dollars. Your not really giving us enough info to gage accurately a fair price. I mean, hows the body, interior, transmission, ect ect. Also, with 200k on the odom, that takes a huge chunk out of the value of the car. Because the cars and auto, thats a price drop as well.
The timing chain itself is a pretty serious ordeal. You might be better off just replacing the whole engine itself. With 200k on the odom, the engine is in its last leg of life. You can pick up running ka's for pretty cheap. However, if you chose to replace the timing chain you need to lower the oil pan to take off the lower timing cover. You also need to take off the crank pulley, and all the belts. Then, valve cover, upper timing cover, and finally the lower timing chain cover.