HEMI Oiling Issues

[Spartan040]

I realize this forum is more dedicated to classic Mopar engines but I hope the gear heads here can help me.

I'm aware that MDS Hemi engines have a known issue with lifters, and subsequently cams, going bad, but I thought this had to do with just poor lifter design or quality. But this video posits that cams and lifters going bad in these gen 3 Hemis is a result of just poor design that applies to both MDS and non-MDS engines: https://youtu.be/dI93-Zdx_nY

Is there truth to what this guy says? Is this a known issue with all Hemi blocks, or is it only the 5.7? I have a 392 in a 2016 Challenger and I'm worried about its longevity if the block itself has design flaws that lead to oil starvation.

[Chryco Psycho]

The problem exists , basically all 3rd gen Hemis are the same so the same oiling problems can occur , there are lifters available that have a pin hole to  oil the roller in the bottom though , the other part of this is to run the Hemis harder , keep the revs up , don't idle for long periods . this is why cam break ins are done at 2200 + rpm to provide a lot of oil to the cam .
I was wondering if it was possible to install a 1/2 tube inside the block under the cam in these blocks so the cam is submerged in oil all of the time ?
FYI all roller cams can suffer from oil starvation which is a known issue for decades , the factories seem to have been able to make hyd rollers live in street applications but I have vary rarely used or recommended solid rollers for street use .

[RUNCHARGER]

Known issue alright. I don't idle mine much and may throw in a new set at 100,000 miles. Cheaper to change them before they need it I figure.

[Spartan040]

The problem exists , basically all 3rd gen Hemis are the same so the same oiling problems can occur , there are lifters available that have a pin hole to  oil the roller in the bottom though , the other part of this is to run the Hemis harder , keep the revs up , don't idle for long periods . this is why cam break ins are done at 2200 + rpm to provide a lot of oil to the cam .
I was wondering if it was possible to install a 1/2 tube inside the block under the cam in these blocks so the cam is submerged in oil all of the time ?
FYI all roller cams can suffer from oil starvation which is a known issue for decades , the factories seem to have been able to make hyd rollers live in street applications but I have vary rarely used or recommended solid rollers for street use .

Can you tell me which lifters those are? Johnson or some other company? I'm seriously considering a cam swap once my extended warranty is out and I'd be deleting the MDS hardware, lifters included. Got another 65,000 miles or 4 years to go, whichever comes first.

Lol, I certainly give my Hemi plenty of exercise!

That'd be a million-dollar-idea that you could probably sell to Chrysler if you can make it work.

[Chryco Psycho]

Search for EDM lifters .
I would need a block to see if it can be done , I doubt it would be too hard , need to make 4 sections of tube between each cam brg to hold oil . problem is finding a gen 3 hemi block here to even play with , there are Hemis here in Panama but finding / getting one , there are not common for sure .

[Spartan040]

Search for EDM lifters .
I would need a block to see if it can be done , I doubt it would be too hard , need to make 4 sections of tube between each cam brg to hold oil . problem is finding a gen 3 hemi block here to even play with , there are Hemis here in Panama but finding / getting one , there are not common for sure .

I searched but Google didn't reveal any to me that are made for gen 3 Hemis. Is EDM a company or a type of lifter?

[73440]

EDM laser electrical discharge machining, places an oil hole in the lifter.

Read an article about Johnson lifters saying poor lifter marching can affect also.

https://hotrodenginetech.com/gen-iii-hemi-lifter-tick-solved/

[Chryco Psycho]

 
EDM lifters have a pinhole in th bottom of the lifter pointing down to either lube the cam lobe or the roller at the bottom of the lifter , I am told they exist for street roller cams but I have not looked for them & do not have a part # for roller lifters like this , sorry .

[RUNCHARGER]

EDM should be a simple fix but you wonder why FIAT hasn't incorporated that into a known problem?

[7212Mopar]

Gen III HEMI has what people called "HEMI tick" that you hear once awhile. Many said it is resulted from oiling problem of the lifters. Also once awhile, you get a cloud of blue smoke when you start the car. More often when the car was parked on an uphill slope. The smoke goes away quickly. This happens even I have an oil catch can for the PCV before going back to the intake. I recently added the oil additive from Turbo Maxx to the engine after reading some reviews.  I know many do not believe in the snake oil stuff so make your own call. What I can say is that I have not hear any ticks since for about 500 miles. The engine seems to run smoother, quieter and cooler. However we are not quite in the hot summer days yet.  I also did not have the blue smoke since. Fingers crossed. I did the same for my 73 which has a new rebuild engine may be 2000 miles. I got the same results. It wasn't cheap but I think it is still worth it.

[Chryco Psycho]

Well from personal experience , I did an oil change one night after work & the drain plug stripped going back into the oil pan , so I wrapped the plug in teflon tape & thought it would hold until I got into town the next day . I lived 70 miles from the city & it was late at night so I had no other choice , about 1/2 way back into town the next morning I thought I saw smoke behind the car but it was dark so I was unsure . I had put a low friction additive in the engine months before & I drove 40 miles into the city & parked the car & went to work , after work I noticed a 3" puddle of oil under the car which was unusual , so I checked the drain plug , it was gone , there was no oil in the engine at all , I had driven 40 miles without oil , the engine was fine ,put in a new drain plug refilled the oil & drove the car for a couple more years !
Some of these additives work wonders !!