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Lifter Failure? Report it here!

So, are people having success with the Hamilton flat tappet conversion? My worry is doing the conversion and still having an oiling issue.
 
301cummins said:
I agree but that doesn’t explain the lack of oiling at the rocker assembly. Also note shot roles down hill. If the rockers are struggling to get oil wouldn’t the lifters as well. Hydraulic lifter without the hydraulics.
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It appears that the lifters get oil from the main oil rifle which is right next to them, each set of rockers gets their own feed from the same main rifle. The pictures are from a isb 6.7, but should be more or less the same for the cgi blocks

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So is it a pressure issue, I feel like the trunnions shouldnt show wear at 10k miles.
 

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301cummins said:
So is it a pressure issue, I feel like the trunnions shouldnt show wear at 10k miles.
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Is the black nitride/parkerized finish just wore off? I can’t tell by your pics if the finish wore off and the metal is showing below or there is scoring. The part that hasn’t wore off doesn’t appear to have a mirror smooth finish that’s why I’m asking.
 
I miss spoke, it’s Nitride not DLC. I ran my finger nail across it no scoring yet. Just paranoid because of the way the stock trunnions looked at 80k.
 

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301cummins said:
I miss spoke, it’s Nitride not DLC. I ran my finger nail across it no scoring yet. Just paranoid because of the way the stock trunnions looked at 80k.
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Ok those pics tell a different story I see scoring esp on the pushrods. Have you spoken to Manton?

Argh! Edit:
Those are your old setup.

If can’t catch edges with your nails the coating may of wore off and I think that’s to be expected. May still be worth it to contact manton.
 
I will give it a shot. I’m just trying to get some longevity out of my truck. Seems like I keep finding stuff. Wonder if anyone makes a bigger oil pump to push more oil at idle. Just super paranoid at this point.thinking of doing conversion, but wouldn’t be worth it if there wasn’t enough oil getting to them.
 
So manton said that the they polishing on their pushrod is normal. Shows good oiling and that the 2 metals are happy Waiting to hear back on the trunnions
 
Joining you poor souls. I’m at week 7 at the dealer getting a new top end. They claim it’s the scissor gear on the cam that’s failed. I’m not sure I buy that. Same operating characteristics outlined in this thread - ‘23 SO, 31K miles, 15% idle time on the clock, OCI at every 7,500 with Valv PB 5w40, ticks at or above 1300 RPM unloaded. Climate accommodates 10w30, so I guess I’ll go to T6 post repair and see what I see. I don’t have photos of the lifters (dealer said they appeared normal with no damage), but I did want to post the cam and see if y’all could glean anything from it that I might have missed?123_1.jpeg123_1.jpeg
 
tex said:
Joining you poor souls. I’m at week 7 at the dealer getting a new top end. They claim it’s the scissor gear on the cam that’s failed. I’m not sure I buy that. Same operating characteristics outlined in this thread - ‘23 SO, 31K miles, 15% idle time on the clock, OCI at every 7,500 with Valv PB 5w40, ticks at or above 1300 RPM unloaded. Climate accommodates 10w30, so I guess I’ll go to T6 post repair and see what I see. I don’t have photos of the lifters (dealer said they appeared normal with no damage), but I did want to post the cam and see if y’all could glean anything from it that I might have missed?View attachment 78592View attachment 78593
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You have video of the particular noise it was making?
 
Looking at those photos it looks like there is a lubrication concern, low pressure or poor oil quality.
I also listened to the videos and my interpretation would be a rattle rather than a tick, also why is the noise louder/more noticeable on the turbo side?
Only my observation, I am a rookie in this business.
 
So after 8 weeks of just absolute nonsense, got the truck back yesterday with new lifters, cam, rods and rockers. Guess what? Still rattles… Only around 1100-1300 RPM, and only when unloaded like @kfscoll - I think I’ll drive it a while and stop looking for a ghost. Runs great, feels great, pulls great, just rattles like a baby toy at high idle unloaded.
 
tex said:
So after 8 weeks of just absolute nonsense, got the truck back yesterday with new lifters, cam, rods and rockers. Guess what? Still rattles… Only around 1100-1300 RPM, and only when unloaded like @kfscoll - I think I’ll drive it a while and stop looking for a ghost. Runs great, feels great, pulls great, just rattles like a baby toy at high idle unloaded.
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Mine does something similar, I just figured it was fuel injectors or def injectors you could hear since the engine seems to smooth out a little at higher rpm. Mine runs fine.
 
Hopefully once the oil gets some hours on it it will quiet down. Mine is finally whisper quiet after about a thousand miles. Running hotshots tends to be thinner.
 
Well crap, you're going to have to put me down with the dreaded ticking now too. 2022 2500, 36,900 something miles. 9,2% idle time. Oil changed no later than 8000 miles ever. First two changes were with T5 10w30, second one with T6 10w30 and then the next two AMS oil 10w30 signature. The first AMS oil went right to about 8000 miles. I just changed it to Sig series 10w30 again about 500 miles ago and noticed the ticking tonight.

Ticking occurred after engine is warm, idling and still ticks when put in high-idle, just faster, but more quiet. Truck is completely stock. Oil filter was filled before installation on the last change for sure because I did it.
 
301cummins said:
Hopefully once the oil gets some hours on it it will quiet down. Mine is finally whisper quiet after about a thousand miles. Running hotshots tends to be thinner.
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Trying to track your progress here...was this after putting 5w-40 in after having 10w30 and the only change you made? Or have other things been done to your truck?
 
Honestly oil didn’t matter when it was warm. Both 5w-40 and 10w-30 amsoil and hotshot pao. Newer oil at operating temperature it ticks. Once I got about a 1k miles no tick. I have replaced pushrods and had to order new rockers cause of how bad the rocker cups got.
Just did headstuds and took a peek at the valve train. Everything looks good. One pushrod end looked like it was wearing funny.
 
301cummins said:
Honestly oil didn’t matter when it was warm. Both 5w-40 and 10w-30 amsoil and hotshot pao. Newer oil at operating temperature it ticks. Once I got about a 1k miles no tick. I have replaced pushrods and had to order new rockers cause of how bad the rocker cups got.
Just did headstuds and took a peek at the valve train. Everything looks good. One pushrod end looked like it was wearing funny.
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Did you by chance run it with cover off and mark the rods to see if they were rotating?
 
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