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XG falcon Multi-point 4.0l broke all exhaust rockers??? 

 

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 Post subject: XG falcon Multi-point 4.0l broke all exhaust rockers???
Posted: Sat Feb 23, 2013 3:27 pm 
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Location: adelaide
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so i was driving my ute spiritedly and it died on me make a few clunking noises and didn't want to turn over. pulled the rocker cover and found just pure chaos !!!

Just trying to find out what caused this and the best approach of fixing this catastrophic failure lol. Thinking of getting a mild cam to put in whilst i'm here and stuff.

Pictures

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Broken valve surprisingly everything is still intact 8-)

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1 of the many broken lifters :evil:

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All the lifters in the rocker cover :mrgreen:


So i just want to know the best way to go from here if i want to put a mild cam in it too, like price ranges and roughly how long it will take :wink:

Cheers Jack
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 Post subject: Re: XG falcon Multi-point 4.0l broke all exhaust rockers???
Posted: Sat Feb 23, 2013 3:44 pm 
Getting Side Ways
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Did your timing chain skip a few teeth and valves kissed the pistons at high rpm?

 

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 Post subject: Re: XG falcon Multi-point 4.0l broke all exhaust rockers???
Posted: Sat Feb 23, 2013 4:23 pm 
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SA, Australia

Nah it was at about 3,000 rpm when it happened, what caused it was me stabbing the throttle.

also the motor would most of the time rattle through out the rev range, it being most noticeable under load 1,000 rpm onwards to about 2,500 rpm.

is that the sound of a loose cam chain?
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 Post subject: Re: XG falcon Multi-point 4.0l broke all exhaust rockers???
Posted: Sat Feb 23, 2013 4:33 pm 
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Age: 26

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Location: adelaide
SA, Australia

also i found a broken piece of cam chain guide about 2cm long :shock:
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 Post subject: Re: XG falcon Multi-point 4.0l broke all exhaust rockers???
Posted: Sat Feb 23, 2013 4:58 pm 
Getting Side Ways
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the same thing happened to my brothers ef because his lash adjuster broke and it skipped as tooth

 

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 Post subject: Re: XG falcon Multi-point 4.0l broke all exhaust rockers???
Posted: Fri Mar 01, 2013 5:06 pm 
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thanks guys for all your comments and all that, also ill keep you guys updated yo!

Cheers Jack
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 Post subject: Re: XG falcon Multi-point 4.0l broke all exhaust rockers???
Posted: Fri Mar 01, 2013 5:12 pm 
Getting Side Ways
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Was the cam sprocket bolt done up nice and tight? Or as mentioned did the timing chain skip a tooth?

Gab
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