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Not trying to insult...Did you check the oil level? Had one recently that needed 2.5 gals. 2001 7.3 swamps 175/146 single shots/ idm ts-6 chip.

First time I repaired it a lifter seemed to have debris in it. Like sand or foreign matter from valve cover removal. What your saying isn't impossible but I think there is a better chance of hitting the powerball. The ball in the pic is from higher up in the rocker arm above the glow plugs...

I hope your right. I've had valves alot further off on adjustable rockers. We shall see. 2001 7.3 swamps 175/146 single shots/ idm ts-6 chip.

Exhaust rocker I assume? Let me ask you this did it thump at idle or under load? 2001 7.3 swamps 175/146 single shots/ idm ts-6 chip.

I swore as a last resort this is what was wrong with mine. Didn't find anything too out of the ordinary upon disassembly but this the left ball is discolored. Socket appears not as bad as the one you've got there. I'm waiting for a replacement to come in. You might have seen my other thread...

Update... Pulled it apart again last night. Checked all the pushrods on glass - good Pulled apart rockers. Only thing I found was one pivot ball was scuzzy and lost its shine so to say. Rocker looks to have ever a tad more wear than the rest. I tried mic'ing them measuring the ball inside...

I think the only way to pick it up is maybe a video next to the tailpipe going down the road. 2001 7.3 swamps 175/146 single shots/ idm ts-6 chip.

Eh I dunno. Kinda second guessing here. It runs good don't get me wrong just still has a cammed gasser sound to it slightly. Really aggravated at the machine shop I used. I had dropped the heads off and showed them I was concerned about the guides and thought it was in the job as I just got a...

No I didn't. The lack of power and random missfire something would have shown up. I inspected everything in place thoroughly. There is no excessive play or suspected issue with a lifter. I jumped to conclusions. The last issue I had one lifter would stick and bleed down resulting in a thump...

Well happy new year! Did a few more buzz tests yesterday and day before and no idm codes. I pulled it apart today. Checked every rocker and pushrod. They all look good. Turned it over by hand a million times trying to find a worn rocker socket or pushrod. Spun all the pushrods they are...

Tried a video can't distinguish it over normal injector noise. I think If someone in a car next to me recording the tailpipe would pick it up. It does it on acceleration also. The dead giveaway that it's mechanical is it does it on decel too. I spoke with Dave and Johnny at swamps today...

I gutted it the ebvp. It's pretty consistent. It's likely mechanical. Sounds like a cammed gasser when foot off the pedal cruising down a hill. 2001 7.3 swamps 175/146 single shots/ idm ts-6 chip.

Seems better when cold then a few miles down the road it gets worse. I found my paperwork and called the machine shop to confirm. They put new exhaust valves in as the seats were burnt and new injector cups per my request. Nothing was done with the guides they said they appeared fine at the...

Yes I changed them all as well as the pushrods. Oil did not cause the previous failure. Suspected debris in lifter. I'll let you guys wrestle with that lol. I started the troubleshooting process last night. -Fuel pressure 60 idle , 50 wot -Monitored sensors while commuting home...

No I have not. I ran rotella and Mobil delvac before motorcraft. I've probably put motorcraft in the last 3 times. I'll try delo I reckon. Any reasoning? 2001 7.3 swamps 175/146 single shots/ idm ts-6 chip.

Wishful thinking maybe something similar happened. I'm jumping to the lifter conclusion based on previous experience. I'll pull the covers next weekend most likely. The dt466 rockers break a lot with no symptoms. 2001 7.3 swamps 175/146 single shots/ idm ts-6 chip.

Interesting.....must have ran like a bag at idle too no? 2001 7.3 swamps 175/146 single shots/ idm ts-6 chip.

I believe it's in my tuning. It runs best on 10/30 tbh. I'm assuming the icp is on the higher side (my pump holds pretty well) so when I come off the highway it would take a little bit to bleed off and have a rather shaky idle on 15/40. Nothing out of the ordinary just a pet peeve. As far as...

Thx for the reply! Funny thing is it runs the best on it. I'm debating on trying a different oil and see if it frees up a bit. I've got delvac 1 on tap at work but I'm not a thief lol. Anyone ever try ATF or an additive to try to unstick a lifter? I know it's good for freeing up gunk which...

Pretty much does it right out of the driveway. I had the heads done at a local machine shop. No clue what he set the stem to guide clearance is at. I can call him Monday. I was able to figure it out last time by cranking the engine and hearing the thump out the exhaust then pinpointing what...