timing belt let go help!!

[Dsmwant2b]

Ok well a about a week ago i had gotten everything in my talon together to get it started for the first time she fired right but then the timng belt lost teeth

I did a compression test and it came up as 0,0,155,155
I would like to know what the chance is that my pistons are fine and i only bent the valves and didnt crack a piston or two WTF

 

[GSX93DSM]

Sounds like your have more then valve trouble then that. 0 compression is not good possibly rings, rod piston problems what did you do to the bottom end anything?

 

[92awddsm]

I would say you bent or broke the valves. What rpm did the tb break? If it was at idle, chances of piston damage is slim. If it was rings, compession would be more than 0.

Anyway, my most educated guess is that it was at idle or low rpm and only bent valves. With only 2 cylinders having zero compression and they happen to reach tdc consecutively, makes sense that the exhaust valves were bent in both cylinders and not the other 2 because the engine wasnt spinning fast enough to make a full revolution. Do a leak down test and this will tell where the cylider leakage is located.