Ooof… how screwed am I?
Thread Starter
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Rookie
Joined: Jul 2016
Posts: 68
Likes: 0
From: Victoria, BC, Canada
Well, I’m stumped.
1) All the valves/springs open and close.
2) None of the lifters collapse when I push on them (this is with cam lobe facing skyward and spring not compressed)
3) nothing is loose.
4) new timing chain tensioners
5) no timing chain guides were fubared. All in tact from what I could feel and see.
6) chain tension is fine.
is there anything in the air plenum that could flock or tap? I’ll grab my friends borascope and check the cylinders to see if anything is rattling around…
not sure where to look next? Run it with the covers off?
1) All the valves/springs open and close.
2) None of the lifters collapse when I push on them (this is with cam lobe facing skyward and spring not compressed)
3) nothing is loose.
4) new timing chain tensioners
5) no timing chain guides were fubared. All in tact from what I could feel and see.
6) chain tension is fine.
is there anything in the air plenum that could flock or tap? I’ll grab my friends borascope and check the cylinders to see if anything is rattling around…
not sure where to look next? Run it with the covers off?
Thread Starter
|
Rookie
Joined: Jul 2016
Posts: 68
Likes: 0
From: Victoria, BC, Canada
Well, I’m stumped.
1) All the valves/springs open and close.
2) None of the lifters collapse when I push on them (this is with cam lobe facing skyward and spring not compressed)
3) nothing is loose.
4) new timing chain tensioners
5) no timing chain guides were fubared. All in tact from what I could feel and see.
6) chain tension is fine.
is there anything in the air plenum that could flock or tap? I’ll grab my friends borascope and check the cylinders to see if anything is rattling around…
not sure where to look next? Run it with the covers off?
1) All the valves/springs open and close.
2) None of the lifters collapse when I push on them (this is with cam lobe facing skyward and spring not compressed)
3) nothing is loose.
4) new timing chain tensioners
5) no timing chain guides were fubared. All in tact from what I could feel and see.
6) chain tension is fine.
is there anything in the air plenum that could flock or tap? I’ll grab my friends borascope and check the cylinders to see if anything is rattling around…
not sure where to look next? Run it with the covers off?
Thread Starter
|
Rookie
Joined: Jul 2016
Posts: 68
Likes: 0
From: Victoria, BC, Canada
I appreciate it, I’ve found another site more local to me… 16 for 100 bucks. Pulled the trigger on a set.
it may be the opposite of collapsed and it could be seized instead… I’ve stumbled on a few videos of the 4.7 having the same issue. 🤷♂️
it may be the opposite of collapsed and it could be seized instead… I’ve stumbled on a few videos of the 4.7 having the same issue. 🤷♂️
Let us know how it turns out.
Thread Starter
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Rookie
Joined: Jul 2016
Posts: 68
Likes: 0
From: Victoria, BC, Canada
Well I did pull a few lifters out for kicks and they were both locked solid. Couldn’t squeeze em with my fingers or with a pair of channel locks. It was only until I put them in a vice that it compressed and would not return.
it’s so strange, the whole truck has been running so well with oil changes and suddenly all these lifters seize?
it’s so strange, the whole truck has been running so well with oil changes and suddenly all these lifters seize?
Champion
Joined: Oct 2013
Posts: 3,774
Likes: 449
From: Atlanta
Well I did pull a few lifters out for kicks and they were both locked solid. Couldn’t squeeze em with my fingers or with a pair of channel locks. It was only until I put them in a vice that it compressed and would not return.
it’s so strange, the whole truck has been running so well with oil changes and suddenly all these lifters seize?
it’s so strange, the whole truck has been running so well with oil changes and suddenly all these lifters seize?
https://dodgeforum.com/forum/2nd-gen...ine-issue.html