Power Wagon Registry

Retired BLM Rig wrote: Was this on an MDS cylinder?

No MDS, 2011 5.7 in the Wagon

What a bummer!
So did this happen on cold start up, cruising along, or wide open throttle racing a Raptor?

Retired BLM Rig wrote:What a bummer!
So did this happen on cold start up, cruising along, or wide open throttle racing a Raptor?

Just cruising, about 35, all warmed up. Out of the blue it just started running like crap like a super bad exhaust leak, then died the first time I stopped. Was very hard to keep running but ran moderately rough at 3000rpm. Managed to drive it home about 5 minutes away. I had figured it was a crazy exhaust leak like I broke a manifold bolt. There was no noise like a valvetrain issue.

How do the cam lobe and lifter look?

Retired BLM Rig wrote:How do the cam lobe and lifter look?

I had posted that info above just after one of yours.

Cam lobe and lifter seem fine. Pushrod seat in the lifter looks fine. Bearing feels the same as the other 7 on that side with some hand load.

DamageWagon wrote: ↑

Sun Oct 07, 2018 1:32 am

Retired BLM Rig wrote:How do the cam lobe and lifter look?

I had posted that info above just after one of yours.

Cam lobe and lifter seem fine. Pushrod seat in the lifter looks fine. Bearing feels the same as the other 7 on that side with some hand load.

Ah yes, the page changed and I missed it.

Any idea what caused the failure?

coder wrote:Any idea what caused the failure?

No indicator of failure. I think 187,000 miles of hard use broke a valve spring, or the top of the valve snapped off.

I’m really surprised the valve seat is completely untouched.