rb25det timing issues

[smmsak]

Hey guys so I had the head off the car. Put it back on and after 20 min of driving, the timing went off and wouldnt start. Got the timing redone and made sure everything was tight as before, and it lasted abiut 500 miles and just went out and wont start again. Has anyone ever had an issue like this? I have no idea whats going on. It has a new timing belt and everything is nice and tight but its way off timing. Please help!!!!

[AS240]

Are you tightening down the tensioner enough? It's not supposed to move after the (green) spring on the back sets the tension.
Post pics of everything from the cams to the crank.

[fliprayzin240sx]

^^^Better question is, he replaced the timing belt, did he replaced the tensioner and idler? You're supposed to replace those when you replace the belt.