So i swapped my blown c4 out for a c6 that was just taking up room at a friends shop. Well i tried to start it and it and it wont start it does this fast then slow turn(the fly wheel) Does this mean its not balanced correctly? or did i install it wrong? Is the starter going? any help would be great...

 

the 302 is a 1978 and the c6 is from 76

 

nobody have a idea or anything?

 

So the trans is bolted to the engine, the start installed, and all you get is a spinning starter, right? Does the starter engage the flexplate and spin that as well?

Something is installed incorrectly, and may now be damaged. OR you have the wrong depth starter.

As for balance, read thisee here:

Ford Flywheels and Flexplates

You may have a simple mismatch or a fubar trans.

Either way, it's probably gotta come out.

 

yes the starter engages the flexplate and the first time i started it, it ran perfect...I think i will get the c4 rebuilt and sell the c6, but thank you for the response.

 

So the engine turns over, not just a spinning flexplate?

 

yes it did the first time i started it and i did nothing to it and the second time i turned the key it trys to start slow and then super fast then slow (talking about the flywheel spinning)

 

did you install the spacer plate between the engine and trans?

 

OK, one more time. In every case where you try to start it, does:

--the engine turn over EVERY time?

--sometimes the engine turns over, sometimes ONLY the flywheel spins?

 

sorry even i dont understand what im saying in that last post.....i swapped the tranny and was all done i started it it ran fine so i turn it off well came back to the truck like 15min later and then it would not start

 

spacer plate?

 

OK, a no start with the engine spinning.

Back to basics. Fuel & spark. Check all the wires, especially anything in the work areas.

Fuel filter, vacuum leaks--did you hook up the modulator?

 

That stuff is all good, but when i try to start it it spins slow then fast then slow ect.

 

I have just noticed that there is a break in the return line that someone tryed to fix but did ****y job, i will fix it and try again

 

but i really appreciate the response and being put in the right direction