'08 E-450 popping in intake

[GregH]

Not really looking for guidance, just a beer to catch my tear....

 

All cylinders have good compression as measured by a mechanical gauge, but #8 has a double bump in the gauge needle. Valve cover off, and I see that the rocker arm bridge is off of one valve. Dig deeper, and find that I cannot remove the tappet from it's bore. Pull the high pressure pump, and I see a rough surface on the camshaft.

 

Pull the camshaft to allow the tappet to drop into the camshaft cavity instead of up through the deck, and find an absurdly flat tappet. Seems that the piece of high-tech plastic designed to keep the tappet from rotating has failed in this simple task.

 

Thanks, International...

 

Oh, and parts are on intergalactic, "see ya in hell ya rat bastard" backorder.

 

Thanks, Ford...

 

And this is in a bus - so no cab off, and a whole new level of hell bracket that supports the auxillary systems.

 

Thanks, Starcraft...

 

And we have now exceeded 30 days.

 

Thanks again, Ford...

[LARRY BRUDZYNSKI]

Okay I'll be the first to offer the sacraficial beer...

 

Now do you feel better?

 

Good now PM me the part numbers maybe I can find them for you......

[Aaron]

 

Oh, and parts are on intergalactic, "see ya in hell ya rat bastard" backorder.

 

 

I'm sorry to laugh at your pain, but that was funny, right there.

[Mekanik]

We have an F-Series (I think a 2007) in the shop with the same concern. Cylinder #8 camshaft lobe is totally worn down. Camshafts are unavailable so this thing is getting a short block.

 

I wouldn't describe it a popping noise, but more of a thump noise coming out the intake. Our theory is the noise is caused from no valve overlap.

[Aaron]

Camshafts are unavailable so this thing is getting a short block.

 

You sound devastated that you don't have to put a cam in it

[Mbl35]

Seems like these o8 6.0s are having lots of issues and at low millage. Seems like all of our 08s are lining up for front cover gaskets-all leaking above the ps pump and it's not the cam sensor and all at 10-20k. Also oil pressure switches are leaking

on the 08s as well.

[Aaron]

I am doing a LOT of front covers, but not on 08's. Ripley's believe it or not, but I've never worked on a 6.0 in an 08 E-series.

 

<<knocks on wood>>

[Mekanik]

Originally Posted By: Mekanik

Camshafts are unavailable so this thing is getting a short block.

You sound devastated that you don't have to put a cam in it

I'm not the tech working on it but if I was I would want to fix it. The tech working on it was devastated that he was WAY under the cost cap, but his mood changed when he found out he couldn't get a cam.