Hello, i am from Norway so my english isn't so good but i try to explain and hope you understand me...

I have a ram 2500 with hemi 5.7, i was driving and the belt on the engine, ac,waterpump, etc... belt... That belt snapped off, i had to drive the car some miles to get it off the road, it all went good until i came to some hills and the engine became very hot, so i stopped the engine and then i coked/ coolant coming out...

When i tried to start it again it wont start, or it starts if i hold the throttle pedal halfway in, but its not a good sound in it, missfires and run badly, not idling at all...
There is no water in the oil and no oil in the water that i can see, i really cant see anything wrong.

Do some of you guys have a clue what have could happend??

 

1) Blown head gasket, although you'll usually see coolant in the oil but not always.

2) Warped aluminum head - this is likely and the sound that doesn't sound too good is probably a dropped valve seat. Head is aluminum and it expands during an over-heat but the valve seats are steel and don't expand at nearly the same rate, hence they drop out. This causes the valve to drop and hit the piston on each stroke (the not a good sound part), the injector stays open and the plug is probably toast (there's the misfire part). Had it happen to me (on the 4.7 in my now sold Grand Cherokee) and I didn't even have a serious over-heat...

 

Im with you Hammer, but like you said not always is there water in the oil which i found out the hard way.

Have a compression test done

 

Thank goodness this is a Hemi we are talking about and NOT a 4.7. LOT easier to remove the heads on a push-rod engine than an OHC engine. I had a good 8 hours pulling the heads off the 4.7 HO in the Grand Cherokee...

 

It wouldnt surprise me one bit.

 

Here is a video when i start it, anybody familiar with these sounds???

 

Im pretty sure with a sound like that the last thing i would do is rev it up like you dont care. Hello rebuild!

 

i had to have som much throttle too keep it alive...

 

Start with a compression check to verify the cylinders, but it sounds (that poor engine!!!!) like its about to puke its internals. I wouldn't run it any more until it gets checked out.

 

For future reference, if your engine sounds like that... Don't run it, even to make a video.