[19johned53]

Dodge changed the lifter design several years ago.

They have taken action.

You're yelling "The British are coming, the British are coming," and this is old news.

Real old news. 😆

 

[ChallyTatum]

Dodge changed the lifter design several years ago.

They have taken action.

You're yelling "The British are coming, the British are coming," and this is old news.

Real old news. 😆

Wait which British invasion are we talking about...the Beatles?

 

[Lordofthehomer]

Dodge changed the lifter design several years ago.

They have taken action.

You're yelling "The British are coming, the British are coming," and this is old news.

Real old news. 😆

So that explains why it still happens on their post lifer change? The tuning shop that dyno tuned my car today mentioned three hellcats with the same problem. All were post “change”. It may not be as prevalent now but it’s still here. We’ll see how prevalent it is in the new cars come a few years.

 

[19johned53]

Wow. Three HC's with the same thing according to a tuner.

Haven't seen that type of HC failure posted around here.

 

[70iselin]

Scary, real scary

 

[ChallyTatum]

Scary considering the 6.2 is not equipped with MDS.

 

[70iselin]

I thought all the motors are MDS equipped except manual transmission

 

[ChallyTatum]

I thought all the motors are MDS equipped except manual transmission

Not the 6.2, both auto and manual versions don't use MDS but it does still use VVT.

 

[Lordofthehomer]

Wow. Three HC's with the same thing according to a tuner.

Haven't seen that type of HC failure posted around here.

I would have called him out on it, but… one was there. This is a reputable performance shop that does Dyno tunes. They specialize in Mustangs so I thought it was trash talk, but the guy has a blown 392 swap in his 2011 R/T. Another person there has a HC charger. So I could rule out bias.

 

[ChallyTatum]

I would have called him out on it, but… one was there. This is a reputable performance shop that does Dyno tunes. They specialize in Mustangs so I thought it was trash talk, but the guy has a blown 392 swap in his 2011 R/T. Another person there has a HC charger. So I could rule out bias.

But those were Fords technically...F'ed over rebuilt dodges. Oh no he di'int!

 

[Lordofthehomer]

But those were Fords technically...F'ed over rebuilt dodges. Oh no he di'int!

Lmaaaoooooo!

 

[UnclePhony]

roller lifters are the weakpoints of engines that use them... LS and Hemis... Of course can fail. Its much rarer now, I think there was a supplier issue (during the bankruptcy).

Idling is considered "extreme duty" usage and says right in the manual to use "hours" to change your oil by, do cops listen? doubtful... cop cars can be idling 24*7... and their oil isnt getting changed on time... quality contro l(seems fixed), engine oil (dont treat your engine like crap)... I think MDS failures(solenoids and lifter complexity) can lead to this also(rare).

 

[2Marks]

at some point i just might, but im under warranty on my 21 for a few more years. then it will be time to decide on a widebody redeye or a d1sc procharger forged lower and stick with the shaker

Procharger and Shaker !!!!! HECK YEAH !!!!

 

[ChallyTatum]

roller lifters are the weakpoints of engines that use them... LS and Hemis... Of course can fail. Its much rarer now, I think there was a supplier issue (during the bankruptcy).

Idling is considered "extreme duty" usage and says right in the manual to use "hours" to change your oil by, do cops listen? doubtful... cop cars can be idling 24*7... and their oil isnt getting changed on time... quality contro l(seems fixed), engine oil (dont treat your engine like crap)... I think MDS failures(solenoids and lifter complexity) can lead to this also(rare).

Yup a couple years back there was a thread about the new lifter design.

Cutaway View Hemi Lifter Improvements [ larger needle...

See attached, sounds like the "AC" & "AD" versions of the lifters got larger needle bearings. Has anybody had or heard of lifter failures on 2018, 2019, 2020. Thinking the lifter rollers with the enlarged needle bearings were fully implemented by 2018 (possibly 2017 not sure). "Darth Hemi"

www.challengertalk.com

 

[Hal H]

Yup a couple years back there was a thread about the new lifter design.

Cutaway View Hemi Lifter Improvements [ larger needle...

See attached, sounds like the "AC" & "AD" versions of the lifters got larger needle bearings. Has anybody had or heard of lifter failures on 2018, 2019, 2020. Thinking the lifter rollers with the enlarged needle bearings were fully implemented by 2018 (possibly 2017 not sure). "Darth Hemi"

www.challengertalk.com

my '16 had the 787AA series lifters (engine built 9/15, lifters built ~ 8/15) and they had the same diameter needle bearings as the 787ADs when I did my cam swap April '21
I took pictures of them - and they have Julian date codes etched into the lifter body

 

[ChallyTatum]

my '16 had the 787AA series lifters (engine built 9/15, lifters built ~ 8/15) and they had the same diameter needle bearings as the 787ADs when I did my cam swap April '21
I took pictures of them - and they have Julian date codes etched into the lifter body

I have look for images of the 5038787AA thru 5038787AD lifters in hopes to do a comparison back when I heard about the "update" but failed to find such images. I also was trying to get mine hands on buying the lifters but could not the AA.

 

[Hal H]

I have look for images of the 5038787AA thru 5038787AD lifters in hopes to do a comparison back when I heard about the "update" but failed to find such images. I also was trying to get mine hands on buying the lifters but could not the AA.

Here's the images - AA (old) on left / AD new on right - if you zoom in, you can see the part # and the Julian date codes

where the lifters are horizontal, old on lower, new on upper - 46,276 miles. No issues, just required new lifters with new cam (M6 SP Shaker)

 

[ChallyTatum]

Here's the images - AA (old) on left / AD new on right - if you zoom in, you can see the part # and the Julian date codes

where the lifters are horizontal, old on lower, new on upper - 46,276 miles. No issues, just required new lifters with new cam (M6 SP Shaker)

View attachment 1043312 View attachment 1043311 View attachment 1043310

That sure seems like the same roller pin diameter. In the youtube vid the guy showed AA with the smaller roller pins?

 

[Hal H]

That sure seems like the same roller pin diameter. In the youtube vid the guy showed AA with the smaller roller pins?

View attachment 1043313

in that frame shot, those are definitely smaller needle bearings - I wonder if that was a different part #, happening to end in AA - in noticed a mention of it coming out of a pre-VVT engine

 

[ChallyTatum]

in that frame shot, those are definitely smaller needle bearings - I wonder if that was a different part #, happening to end in AA - in noticed a mention of it coming out of a pre-VVT engine

Ah...that could be it!