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Discussion Starter · #1 ·
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.
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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.
 

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

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Discussion Starter · #4 ·
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.
 

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How many miles on the truck?
 

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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.
 

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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?
 

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So it just gave out on a cold startup?
 
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