[ctcopple]

Hello i was seeking some help regarding my 2011 that broke the secondary timing chain and snapped the tensioner off the bracket. Is there anything i should be concerned about if i do a new head. I have scoped the cylinders and dont see anything concerning on the exhaust side that was not moving the cams. Im looking at abut a week out for a new head and have already got all the parts for timing from ford and i figure once the front comes off ill see if any other parts are damaged and just order or get them from ford anyways. Pics attached if i can get them to work.

 

[DNA Dan]

I think once you take the head off you will have a better view of those pistons. I'd be a little concerned about damage to the rods and wrist pin journals if you smacked the valves. Are you boosted? Mods? or is this on a stock truck? I don't think we've ever seen this type of failure before. Something may have been installed incorrectly for the mount to shear like that.

 

[FanaticalKilla]

Looks like you’ll need a new head or a new front cam cap and get it line bored.

 

[ctcopple]

I think once you take the head off you will have a better view of those pistons. I'd be a little concerned about damage to the rods and wrist pin journals if you smacked the valves. Are you boosted? Mods? or is this on a stock truck? I don't think we've ever seen this type of failure before. Something may have been installed incorrectly for the mount to shear like that.

stock truck, been runing 3.5 years i have been told its an odd failure i was taking a shot to see if anyone had seen this before. Ill get the head off and if no damage then maybe just replace and get the timing done.

 

[EcoXLT]

For a 2011 that’s pretty clean inside.

 

[ctcopple]

For a 2011 that’s pretty clean inside.

Thats what I though. I have only owned it since 2018 but i like to keep up on my maintnence and seen the person before me also kept up.

 

[FanaticalKilla]

How many miles on the truck?

 

[ctcopple]

How many miles on the truck?

not yet 160k its around 158 or 159

 

[EcoXLT]

I think once you take the head off you will have a better view of those pistons. I'd be a little concerned about damage to the rods and wrist pin journals if you smacked the valves. Are you boosted? Mods? or is this on a stock truck? I don't think we've ever seen this type of failure before. Something may have been installed incorrectly for the mount to shear like that.

I’m thinking the chain took the mount out.

 

[DNA Dan]

I’m thinking the chain took the mount out.

Ahh yes.. Probably got whipped around that sprocket and sheared it it right off. I wonder how much rpm it takes for that to happen?

 

[Boatwaco]

Ahh yes.. Probably got whipped around that sprocket and sheared it it right off. I wonder how much rpm it takes for that to happen?

1

 

[DNA Dan]

1

Ha ha. You got me.1 revolution sure, but not per minute. Would need much more force than that.

 

[ctcopple]

Yup 1 rpm I didn't drive it for a few days then started it and the knocking sound begun

 

[DNA Dan]

So it just gave out on a cold startup?