Question about Cars & Trucks
Changed out timing belt and oil pump seal, cranked the motor sounded fine but did not start so I went back to check the marks again and they were at the right spot so I tried to rotate the crank by hand and it would only rotate around 1 time to a stopping point, put it in neutral and now will only turn 1/2 rotation and reason why??? Any ideas would be appreciated. 3sfe motor
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Posted on Jan 02, 2017
SOURCE: no start 1992 300zx
Did you try rotating the CAS input shaft? Remember that the cams spin at half the speed of the crank, so a full spin of the CAS is actually 720 degrees. It could be that the CAS is 360 degrees out of phase and causing the car not to run properly. Unbolt it and remove it carefully. Rotate the input shaft (the part that mates with the cam) 360 degrees and put it back on, and see if that helps.
Also, just making sure, when you double-checked the cam timing marks, you did verify that in addition to the four cam sprockets being aligned properly, the crank timing mark is also aligned correctly, right?
Posted on Jul 27, 2008
Hi my name is juan and lets try to solve this it is possible that when you rotated the camshaft the distributor last his position and this is why it won't start it may not be the problem but this happens a lot so open your distributor and aline up your marks on camshaft and the crankshaft then make sure the distributor is pointing near the #1 spark plug if is opposite give it a 1 more turn to the crankshaft line up your marks again and se what happens #1 spark plug is the closets to the front part of the engine on 4cil
Posted on Mar 26, 2009
check your oil make sure the crank seal is ok that u didnt spill ur oil and blow it up. then check the timing belt - you may not have had the tension tight enough on the timing belt and it may have skipped a bit causing it to not fire. i think thats the most likely.
Posted on Mar 30, 2009
Since you have double checkedthe timing and checked the battery make sure you are getting a spark at the plugs and that you are getting fuel. Make sure all sensors are plugged in and are working. Check near the crankshaft (front) for a small sensor and be sure it is plugged in. This is because some vehicles have a crankshaft position sensor to regulate when the spark is delivered to the plugs.
Posted on Aug 11, 2009
are you sure that the tensioner is still good I have the same engine in my 94 ranger and have had to replace the tensioner 2 times
Posted on Apr 10, 2010
Testimonial: "Thanks for the suggestion. That was one thing that I had considered but it appears to be working..."
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