DIY Timing chain replacement?
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Joined: Jun 2005
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From: Riverton, UT
There is a DIY in the main DIY section at the top of the page. Here is the DIY section: https://dodgeforum.com/forum/1st-gen...wers-faqs.html
And here is the specific link: https://dodgeforum.com/forum/1st-gen...d-removal.html
And here is the specific link: https://dodgeforum.com/forum/1st-gen...d-removal.html
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Registered User
Joined: May 2010
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From: Winchester, Kentucky
Thanks. The info is appreciated.
Last edited by TennesseeVolsFan; Apr 16, 2011 at 10:59 AM.
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Joined: May 2010
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From: Winchester, Kentucky
Hmmm.... the distances aren't as important as the tension is. I suppose it's possible that you caught it just as a tensioner started to fail and the chain was slapping up & down, but you won't really be able to see it without pulling the timing cover.
Consider pulling the drivers valve cover as well and compare the tension on that side. Each side has it's own guides & tensioners, so this may give you some more clues.
If they appear the same, then the only other choice is the third chain, but that's completely buried under the timing cover / other chains. You're already well on your way to a rebuild at that point.
Also, remove your serpentine belt and try turning the engine over *BY HAND* with a socket on the crank bolt. If something is gone south you'll hear it.
4.7's are an "interference fit" engine. If a chain jumps or fails, chances are very good that a piston will hit a valve. You should be able to feel resistance while turning teh motor over by hand. Oh yeah, remove the plugs first so you're not fighting compression.
Keep posting what find, there are a bunch of people on here that can all provide good help.
Bob
Consider pulling the drivers valve cover as well and compare the tension on that side. Each side has it's own guides & tensioners, so this may give you some more clues.
If they appear the same, then the only other choice is the third chain, but that's completely buried under the timing cover / other chains. You're already well on your way to a rebuild at that point.
Also, remove your serpentine belt and try turning the engine over *BY HAND* with a socket on the crank bolt. If something is gone south you'll hear it.
4.7's are an "interference fit" engine. If a chain jumps or fails, chances are very good that a piston will hit a valve. You should be able to feel resistance while turning teh motor over by hand. Oh yeah, remove the plugs first so you're not fighting compression.
Keep posting what find, there are a bunch of people on here that can all provide good help.
Bob
You were right, it was the one of the secondary chain tensioners. I could compress it with just two fingers. I bought a complete timing set and a new water pump since i've got it a thousand pieces. Thanks to all that have provided input and links.
Respectfully,
Mark
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Joined: Sep 2010
Posts: 396
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From: Buffalo, NY
Bob,
You were right, it was the one of the secondary chain tensioners. I could compress it with just two fingers. I bought a complete timing set and a new water pump since i've got it a thousand pieces. Thanks to all that have provided input and links.
Respectfully,
Mark
You were right, it was the one of the secondary chain tensioners. I could compress it with just two fingers. I bought a complete timing set and a new water pump since i've got it a thousand pieces. Thanks to all that have provided input and links.
Respectfully,
Mark
Glad to hear that things worked out for you. We were on vacation in Myrtle Beach for the week so I missed the thread updates. Good call on changing the water pump out, it's the smart thing to do. You may want to do the thermostat and lower hose while you're at it also as they're both a pain to get to and are cheap items.
Bob
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Joined: Aug 2006
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From: Whitmore Lake, MI
I also have the noise coming from the passenger side valve cover. I already replaced the idler and tensioner pulleys and the alternator. I disconnected the belt and still had the noise. I am unclear if Tennesseevolsfan needed to replaced the timing chains or just the tensioner. Can the tensioner be accessed without pulling the front of the motor or from the valve cover? I'd like to avoid stripping the front of the motor if possible. Any information or hints would be welcome!!
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From: Buffalo, NY
Bob
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Joined: Aug 2006
Posts: 73
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From: Whitmore Lake, MI
Is there a kit that includes all the needed gaskets and parts? By the way, it sounds like this:
http://www.youtube.com/watch?v=KPhV50rIspQ
http://www.youtube.com/watch?v=KPhV50rIspQ