Gen III Hemi tick - also a good explanation of HV vs HP oil pumps in general

[gkent]

I don't own a Gen III hemi but I found this interesting anyway

 

[Mark Barnes]

Long winded prick! Probably could have covered all that in 1/2 the time. Anyway, if there are cam lobe hardening issues, no oil pump on the planet will help, just prolong the inevitable. If you're smoking those lifters/lobes on a roller cam, best get them both out of there before you cause some REAL damage.

 

[moparedtn]

I've owned a half dozen 5.7 "hemi" critters over the years, including two now - one of
which was the first one I ever bought ('04 Ram SLT 4x4, 180k miles); the wife's current
'12 Charger R/T has 80k on it, also with zero issues.
Every dang one of them never offered a moments' problem and all of them have reached
impressive mileage before I sold or traded them.

Conclusions? I have two about these engines:
1. They're darn reliable and quicker than you think.
2. You got to keep the oil changed in them, preferably with a quality full synthetic.
Hey, it's worked for me.

 

[OKDart]

My 2020 Ram 2500 6.4 manual says to use Pennzoil Ultra platinum 0W40. Also says that ticking is normal.
As far as oil pressure, if I remember right, at idle is about 20 PSI hot. By about 1500 RPM it’s in the mid 30’s.

 

[Dave6T4]

I used to have an '05 Magnum with a 5.7 Hemi. The only time I really heard the tick was if I was at a drive-thru' window and could hear it bounced back from the wall. I asked the service guys at local dealership and was told not to worry about it, "It's a Hemi thing.". I always wondered if I was hearing the injectors. Service guys also said not not run thicker oil to try and get rid of the noise, because this would bugger up cylinder deactification.

 

[F4R/T]

Cams weren’t the issues its the lifter roller bearings would fail, roller stays put and eats itself and the cam. I’ve done a bunch of cams. Poor oil quality and no changes with lots of idle time seemed to kill the ones I worked on. Mine has 200k or better and does well , my 6.1 and kids 5.7 are great a little noise here and there. The valve train design is what I think causes it. Early ones had dropped seat issues once in awhile with valve spring failure but in reality a dam good engine! 8-9 k hours and the short blocks looked great on the inside. I’ve seen a few of the rods fail why I can only think abuse.. They are excellent engines!

 

[5.7 hemi]

Not much, if any, oil gets to the roller. To solve the issue permanently, a groove needs to be cut into the lifter so oil can get to the roller easier and a groove inside the lifter bore. Problem solved.

 

[Dennis H]

No problems here. 0-30 in the 5.7’s, 10-40 Amsoil in the decrepit, 0-40 in the HC and SP.
No ticks.