Cracked Coyote Cam follower roller

[SSPSTANGBANGER]

anyone ever seen this before?

I am trying to figure out how a 81K mile automatic stock car would have been able to do this

 

[UltraKla$$ic]

You're not supposed to drive them!!!!

 

[hamish]

Looks almost as bad as the sand left from the casting underneath it.

 

[Gremlin85]

Foreign object?

 

[86GT351]

Not really a crack but have seen cams and followers get damaged.

 

[BruceH]

How does the cam lobe look?

 

[SSPSTANGBANGER]

How does the cam lobe look?

It's got a groove on the top of the love where it pushes the follower down
It looks to be caused from the follower rolling on it.

I would have guessed a major over rev if it was a stick car but it was a auto and was stock intake etc


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[Mystickeith50]

Drywall screw?.......

 

[SSPSTANGBANGER]

nothing was in the motor it was still factory sealed.

 

[bigwilly43729]

Drywall screw?.......

 

[BruceH]

nothing was in the motor it was still factory sealed.

It's a joke. A former member claimed that a shop put a drywall screw in his motor during assembly. He was suing them for a new motor.

 

[Kalatrax]

Looks almost as bad as the sand left from the casting underneath it.

 

[19COBRA93]

Looks almost as bad as the sand left from the casting underneath it.

That's not casting sand.

 

[hamish]

Sure looks like it to me?
Spill it 93

 

[HEMI LOL]

in for information on the large amount of sand in that pic?

 

[SSPSTANGBANGER]

in for information on the large amount of sand in that pic?

That's what was outside the edge of the valve cover from 81k miles lol
I took it out and rolled the follower to show the damage


Sent from my iPhone 5S

 

[SSPSTANGBANGER]

It's a joke. A former member claimed that a shop put a drywall screw in his motor during assembly. He was suing them for a new motor.

Ah ha I see
Lol
Drywall screws FTW


Sent from my iPhone 5S

 

[19COBRA93]

Sure looks like it to me?
Spill it 93

Casting sand on a machined surface on a cylinder head with 81,000 miles on it?

As mentioned later, it's sand/dirt/dust that builds up on the outside of the valve cover gasket from normal use. When the covers are removed, that sand/dirt/dust gets all over everything. Because of this, I make it normal practice to blow off all the areas with compressed air before I remove a cover.

 

[Gremlin85]

Casting sand on a machined surface on a cylinder head with 81,000 miles on it?

As mentioned later, it's sand/dirt/dust that builds up on the outside of the valve cover gasket from normal use. When the covers are removed, that sand/dirt/dust gets all over everything. Because of this, I make it normal practice to blow off all the areas with compressed air before I remove a cover.

Precisely.

 

[SSPSTANGBANGER]

I make it normal practice to blow off all the areas with compressed air before I remove a cover.

Agreed

This motor is being torn down for a forged build and going in a 89 Saleen so I didn't care if dirt got in anything as it's all going in a hot tank anyways



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