I switched engines and had to mess with the timing to get the 2.8L now in my 1992 camaro to fire up. The engine came out of a 84 camaro it's firing up fine but it's virbrating the whole car more than it should be...suggestions? Also kept ALL the wiring harness, pullies, & accessories off the 3.1 & put them on the 2.8

 

Are you using the 3.1 flywheel onto the 84 2.8? If you did then you may have the same problem I ran into several years ago on my engine swap. The 3.1 uses a neutral balance flywheel or flexplate but the 84 is external balance. 87 and up engines have a big counter weight built into the crankshaft while the earlier years had the weight on the flywheel. HTH

 

yeah im using the flywheel from the 3.1 on the 2.8 also took the harmonic balancer off 3.1 & put on 2.8, u think maybe it could be the timing is a little off too cuz i don't know much bout the timing i just know it was 180 degrees off when i took the cap off when i fixed that it fired right up...what can i do about this?

 

May want to check the plug wires are not crossed. That will give you a really nice vibration.