High EGTs at idle
Dave where is the EGT probe installed? Could the probe be installed to deep and resting on the exhaust manifold? Do you know anyone with thermal scanner to see if you have one cylinder that is hotter than the other?
Just some more thoughts and easier to check.
Good Luck.
Just some more thoughts and easier to check.
Good Luck.
Diesel Enthusiast
Joined: Apr 2009
Posts: 121
Likes: 1
From: Collinsville, Okla.
The probe is installed pre-turbo, in the pre-tapped hole in the ATS manifold. When I put it in, I pushed it all the way to the bottom and pulled it up about 1/2" or so. I have a cheap infrared thermometer that I got at Harbor Freight. Accurate enough, I guess. Where would I check? The exhaust manifold right out of each cylinder?
Diesel Bomber
Joined: Jan 2009
Posts: 3,504
Likes: 157
From: Pylesville, Maryland
So, the rocker arms have play back and forth like, towards the front and back of the truck, but they don't move from one side to the other. What type of lift should I be getting at the rocker arm on the pushrod side? Like if I put a dial indicator on it to verify lift? Also, since the lifters are solid, I take it the only way they would go bad is if they are just worn down. Is this the same for the cam lobes as well?? Thanks for all your input so far guys! I appreciate it.
Diesel Bomber
Joined: Jan 2008
Posts: 4,525
Likes: 103
From: Havre mt
thats not what the valves are supposed to be set at that is the cam lift. the intake valve lash is supposed to be .010" and exhaust is supposed to be at .020 for heat expansion
Checked valve lash today, everything stayed where it was. Still having the same thing happen. Jumps to 200 on startup, slowly rises to just about 300. Shutdown, won't fall below 450.
If one of my intake valves wasn't seating properly, would that cause exhaust gases to be forced into the intake, and into another cylinder?
Diesel Bomber
Joined: Jan 2009
Posts: 3,504
Likes: 157
From: Pylesville, Maryland
---AutoMerged DoublePost---
Yeah, I know. I was looking for cam lift to check to see if I was getting the right amount of lift.
Checked valve lash today, everything stayed where it was. Still having the same thing happen. Jumps to 200 on startup, slowly rises to just about 300. Shutdown, won't fall below 450.
If one of my intake valves wasn't seating properly, would that cause exhaust gases to be forced into the intake, and into another cylinder?
Checked valve lash today, everything stayed where it was. Still having the same thing happen. Jumps to 200 on startup, slowly rises to just about 300. Shutdown, won't fall below 450.
If one of my intake valves wasn't seating properly, would that cause exhaust gases to be forced into the intake, and into another cylinder?
Last edited by 94 12valve; May 22, 2009 at 02:30 PM. Reason: Automerged Doublepost
I tired...apparently, the one I have is only good for 240 deg. I'll have to find one that doesn't suck.
