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So my brand new bronco raptor has phaser issues at 2400 miles. The engine is now being replaced due to improper installation and valve / head damage.
I’ve been reading posts and racking my brain on how this can happen and here is my thoughts. By the way I’m not a mechanic. Just a car enthusiast that knows a lot about high performance engines and engine bearing.
What I noticed on this engine day one is the oil pressure was never what I would consider normal. It always seemed very low especially on start. My suspicion is that the reason this is hard for ford to fix is that the issue MAY NOT be with the design of the phaser itself. The phaser may be the victim of a quality issue with things like cam bearings. I suspect the clearance is wrong or at least on the verge or being out of spec on some engines and with these light weight oils it just can’t build the right pressure for the phaser. I’ve see LS engines at 700 hp with a rebuild be within GM “spec” that can’t build oil pressure when these passages are are at the high end. Something like .003 on the bearing can cause shit like this.
Just a theory.
one other interesting fact. The jaguar 5.0 engine use to suffer this same fate. Guess who made that engine. lol ford
The engine on my bronco is actually getting replaced. I’m debating going with a heavier weight oil right after break in to see if it helps the oil pressure
I’ve been reading posts and racking my brain on how this can happen and here is my thoughts. By the way I’m not a mechanic. Just a car enthusiast that knows a lot about high performance engines and engine bearing.
What I noticed on this engine day one is the oil pressure was never what I would consider normal. It always seemed very low especially on start. My suspicion is that the reason this is hard for ford to fix is that the issue MAY NOT be with the design of the phaser itself. The phaser may be the victim of a quality issue with things like cam bearings. I suspect the clearance is wrong or at least on the verge or being out of spec on some engines and with these light weight oils it just can’t build the right pressure for the phaser. I’ve see LS engines at 700 hp with a rebuild be within GM “spec” that can’t build oil pressure when these passages are are at the high end. Something like .003 on the bearing can cause shit like this.
Just a theory.
one other interesting fact. The jaguar 5.0 engine use to suffer this same fate. Guess who made that engine. lol ford
The engine on my bronco is actually getting replaced. I’m debating going with a heavier weight oil right after break in to see if it helps the oil pressure
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