- Joined
- May 17, 2022
- Posts
- 582
- Reaction score
- 839
- Location
- Reno, Nevada
- Ram Year
- 2012
- Engine
- Hemi 5.7
When you say non mds hemis also tick are you referring to where they have mds delete as in no mds cam, no mds lifters, etc?? Or are you referring to where they have just disabled mds in an mds engine?mds lubricates the 5.7 better then no mds, the mds is a nothing burger when it comes to hemi tick, as we know even non mds hemis tick. MDS sux ***, but hemi tick is something other then this. It isnt lifter quality either, or needle bearings which do fail but they fail due to back pressure on the lifters. The issue is back pressure in the lifter bore that can be fixed by adding EP additives and base oils in most cases, but the real fix should have came years ago. The same thing that saves flat tappet cams can help us, instead of AW additive zinc/zddp our issue is helped with EP additives and not so much AW additives as it is different then the tappet.
Flat Tappet needs zinc/phos
Hemi's need moly/sulfur
The two are very similar the difference is how much pressure is needed to make it work, zinc is too easily sacrificed for our needs, thus the need for "extreme pressure" EP additives. Maybe there is no 100% fix, maybe any engine can have a certain number of fails, but this would surely have lowered the numbers if it was wide spread and not just something ram forum did. At this point I seriously doubt anything will come from this.
Would the design alone of the mds system be at fault not necessarily the strength of cam and or lifters but the design causing poor lubrication to the needed parts that would otherwise not be an issue with just a non mds normal hemi? So in that case due to them having to design a mds type system that in itself could be the culprit and reason for the lawsuit.