Abnormal Camshaft Wear

[LunarS550]

Noticed a not so pretty sight tonight.
Any advice? Driver’s side exhaust cam. All others are clean.

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[Jaymar]

Coil spring binding or rocker roller seized up? Unfortunately, I can't think of a way to test either that doesn't involve a very lengthy teardown to get under the cams. But, both of those conditions would cause an increase in pressure that would break down the lubrication at the highest part of the lobe like that.

 

[LunarS550]

Coil spring binding or rocker roller seized up? Unfortunately, I can't think of a way to test either that doesn't involve a very lengthy teardown to get under the cams. But, both of those conditions would cause an increase in pressure that would break down the lubrication at the highest part of the lobe like that.

I was only in the engine to address a timing cover leak, wasn’t making any noise.
Would you suggest taking the cams out and inspecting further? I’ve done the OPG’s but never had cams out not sure I want to do that. Just switched to royal purple 5w20 last year. Definitely making the jump to 5w50.

 

[K4fxd]

Just switched to royal purple 5w20 last year.

Hmmmmm.

I never liked RP, hope it wasn't the oil that caused this.

That cam is done it needs to be replaced. All the metal that is being worn off that lobe is flowing through the rest of the engine. Be glad you caught it early.

5w-50 won't fix this.

 

[LunarS550]

Hmmmmm.

I never liked RP, hope it wasn't the oil that caused this.

That cam is done it needs to be replaced. All the metal that is being worn off that lobe is flowing through the rest of the engine. Be glad you caught it early.

5w-50 won't fix this.

Cam and follower replacement.
Sounds fun :(

 

[LunarS550]

Hmmmmm.

I never liked RP, hope it wasn't the oil that caused this.

That cam is done it needs to be replaced. All the metal that is being worn off that lobe is flowing through the rest of the engine. Be glad you caught it early.

5w-50 won't fix this.

Anything else? This is the RH exhaust cam correct?

 

[GrabberBargeCaptain]

Wow. Surprisingly cheap part cost. Curious OP how many miles you have?

 

[LunarS550]

Wow. Surprisingly cheap part cost. Curious OP how many miles you have?

A hair over 60k. Procharged E85 car. Only about 3k miles on this oil change.

 

[K4fxd]

I believe you will need new followers for each lobe. These parts wear together and the old followers will wear out the new cam.

 

[LunarS550]

I believe you will need new followers for each lobe. These parts wear together and the old followers will wear out the new cam.

Thank you for the help

 

[K4fxd]

Mark and make sure the cam caps go back in the same place and orientation as when you remove them

 

[LunarS550]

Mark and make sure the cam caps go back in the same place and orientation as when you remove them

Yessir will do.
I’ve watched thousands of coyote build videos preparing for this moment

 

[CrackedHorn]

Wow. Surprisingly cheap part cost. Curious OP how many miles you have?

Follower kit is about $200. This is cheaper than buying them individually
M-6564-M50

Lash adjuster kit is $375
M-6500-M50

https://performanceparts.ford.com/part/M-6564-M50


https://performanceparts.ford.com/part/M-6500-M50

 

[LunarS550]

Follower kit is about $200. This is cheaper than buying them individually
M-6564-M50

Lash adjuster kit is $375
M-6500-M50

https://performanceparts.ford.com/part/M-6564-M50


https://performanceparts.ford.com/part/M-6500-M50

Should only need the 8 followers and 8 lash adjusters right? Total with cam is $454 with some promotion discount buying individually.

 

[CrackedHorn]

Should only need the 8 followers and 8 lash adjusters right? Total with cam is $454 with some promotion discount buying individually.

I'm a "while I'm in there" kind of person and would replace them all. Just a personal preference.

I'm not a mechanic. It may not be needed. It would help me sleep better at night. That's all.

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