Swapping an injector is gonna be easier than pulling the heads.

Measuring valve travel is likely a good idea.

 

Working 7 day weeks, I don't have time to do much more than throw a coil at it - i might get an injector on it this week. Otherwise it's heading to have the cam and lifters replaced.

My first open weekend is May 28; then June 18 and beyond. Until then, I'm working 7-day weeks or at a racetrack.

 

Just changed the #3 injector at the lovely hour of 7PM.

Same thing.

Replaced Spark

Replaced Fuel

All we can assume is that the air's not there.

 

Just ordered the Mark82 camkit and HPT tuning from www.frptuning.com. joys.

 

Survey says....

Oh, and bonus points to me. 6 other lobes were already past the hardened finish and starting to come apart.

https://photos.app.goo.gl/NJppHjnKNES7epxG6



https://photos.app.goo.gl/seahFGSg3rboQqvk7



https://photos.app.goo.gl/CkEhCXdRNy3a5TDx7



https://photos.app.goo.gl/XZhhhngVWEPkop899

 

Wow, that's pretty trashed.

Were the rollers seized up? Or are they just poorly made cams??

 

only the one roller was seized. All others were free. But 6 other lobes were past the hardened finish - 2 had pitting/missing chunks, a third had a lip you could feel.

This issue only applies to the Eagle block, 09 to 14. No exact cause known - not sure the differences between 04-08 block and 09-14 block.

The cam is the highest point in the block - the lifters sit nearly horizontal. The cylinder head return ports are below the lifters and cam.

This means that there is no oiling to the lobes and rollers. The excess off the lifter bodies goes straight down, the excess off the cam bearings goes straight down, and cylinder head return goes underneath.

Result: Splash-oiling only for the important contacting parts of the valvetrain.

 

That seems like a major design oversight......

 

This isn't my block, this is another hemi he has on the engine stand.

https://photos.app.goo.gl/5i5ZuY7W4cwTa6hg7



https://photos.app.goo.gl/ePrZRqMfEvoX717b9



https://photos.app.goo.gl/FGstJmaWbbFwngHK7

 

So how do the cam lobes get oil?? Doesn't look like anything is going to simply run down on to them, and the bleedout from the cam bearings ain't gonna help either. But, since I have seen some of these with close to 300K on them..... gotta be getting it from somewhere.....