Cam not turning!

[91kid]

ok well i bought an accord yesterday. I was told the timing belt was broke...


So today i took the covers off well the timing belt is in great condition.
So I turned the car over with the valve cover off and UTOH! the cam isnt moving at all!
The timing belt isnt moving at all when i turn the engine over
what would cause this??

[Jon]

Broken cam on the gear side or broken gear? It should be fairly obvious...

[Darkcloud]

Is there any oil on the cam at all, it sound like the cam is dry. That happened to me too. Try this

Remove the rocker assembly and do not let bolt from the rocker assembly fallou out. and put oil on the cam and rotate the cam to lubricate the cam journals putthe rocker assembly on and try to see if it the cam rotates.

[Darkcloud]

Broken cam on the gear side or broken gear? It should be fairly obvious...

I just re-read what he posted sound like a broken cam, I had that happen to me.

[91kid]

The cam is in oil... the head has a little like pan under the cam. The cam is not broken.. it would be really obvious... The cam gear that the belt attaches to is not turning.. timing belt isnt moving

[cloudasc]

The crankshaft is what turns the timing belt, which is what turns the cam. If you leave the car in gear, and push/move the car, does the timing belt move then? If it doesn't then I would think that the crankshaft might have snapped (You'll have to drop the oil pan to inspect). Either that or the problem lies with starter/transmission connection to the motor.

This is an educated guess... feel free to correct me where I'm wrong.

[foamypirate]

Sounds like the timing belt broke down by the crank timing gear...

Pull the crank pulley off and get those timing covers off to take a look.

[Jon]

Yeah see, when you re-edit what you previously posted... sounds like a broken timing belt or SOMETHING associated with the timing gear/pulley.

IF the timing belt was moving and the cam wasn't, then I'd stick with what I previously posted.

[ibr_adam09]

You might have some bent valves too, if the motor is cranking, but not the head

[deevergote]

Pull on the timing belt and see if it's loose. It may have snapped down low, as others have said. Even if the crank snapped (which is VERY uncommon), the crank gear would still turn the timing belt.

If the timing belt snapped... yes, you may have internal damage. It may be cheaper and easier just to replace the motor, and use this one for parts.

[Grin0048]

If your timing belt is actually not broken, check your accessory belts...if they are moving and the timing belt isn't, it would mean that that little key thing is broken...I think. Anyone heard of that actually happening?

[91kid]

I've seen crank keys snap but only in amazingly high stress conditions... the timing belt is tight around the top gear i tried to pull on it and it wouldnt budge...

Im starting to think broken crank key.. but how would i inspect that without removing half the motor?

Im used to big/small block gm v-8s im new to this honda scene.. sorry i wasnt clearer in my original post

[plee3]

I've seen crank keys snap but only in amazingly high stress conditions... the timing belt is tight around the top gear i tried to pull on it and it wouldnt budge...

Im starting to think broken crank key.. but how would i inspect that without removing half the motor?

Im used to big/small block gm v-8s im new to this honda scene.. sorry i wasnt clearer in my original post

You stated that the timing belt is tight around the top gear. The belt actually wraps around a couple of more gears inside. Your best bet is to break down the timing belt cover and VISUALLY inspect the entire belt.

[Bullhorn7]

I thought if the cam wasnt turning it meant that you seized up the engine?

[bcjammerx]

crank key was mentioned...but more obvious...cam key.

does the belt spin?
if the belt spins and the cam gear spins while cam "rod" does not, either broken cam key or broken cam

if belt does not spin, crank key