Delivered to garage with a broken cam belt,fitted new timing belt kit. checked timing several times, checked cylinder compression all cylinders 330psi plus.Engine struggles to turn over as if timing is out. Removed camshaft pulley and inspected wood ruff key for damage all ok. Turned engine over by hand and its seems normal.suspected diesel hydraulicing removed all injectors and sent for testing replaced one injector,But still wont start. HELP!!