Rebuilt AMC 360 won't fully rotate????

[Firstcj7]

So I bought a rebuilt AMC 360 and was going to check the compression on it tonight and it will only rotate a 1/4 turn then it sticks??? I flipped it and pulled the oil pan and don't see anything obvious. Any idea's of what could be hitting??

 

[Tacoma]

got all the plugs out? you might be getting stuck on... compression.

 

[Shawn]

Might have dropped a valve.... :-\

 

[Tacoma]

Could be... and a quick pull of the valve covers would confirm or deny that.

 

[Firstcj7]

I'll try the plugs, I should still be able to rotate through the compression stroke though right???

 

[ChestonScout]

it gets tough but yes you should be able to

 

[Firstcj7]

pulled the plugs and its not that, I'll pull the valve covers and have a look

 

[Firstcj7]

Pulled the valve covers and everything looks ok there too?? I'm calling the guy I bought it from

 

[BCGPER]

Look at the flywheel end of the crank. Some guys use a longer than usual bolt in there to hold the crank from turning while installing the vibration dampner.

 

[4554x4]

I once found a rod installed backwards on a rebuilt, never run 350 chev. This caused it to not turn over. Unknown if that could be a possibility on a AMC.

 

[Firstcj7]

Talked with the guy i bought it from and he spoke with the shop that rebuilt it, they said they will fully stand by everything so i'm having them look at it... Thanks for all the good input...

 

[ChestonScout]

Nice! Let us know what it was