ok here goes ....i originally had a 89 dx motor in my car and on a long trip the camshaft broke .....well anyway ,i bought a 94 dx motor that was a auto ...mine is a manual ......i swapped in the 94 motor and when i started the motor it ran fine for a few ....but after awhile it started smoking sweet smelling white smoke ......and now the car will not start .....any suggestions?