New Flat Tappet Issues ?

[70rcode]

Under illuminated magnifier lens, I'm seeing numerous random, small inclusion void hole "pits" in my New cast iron flat tappet faces... The un-named (but name brand $$ ) cam tech claims it's Normal machined-ground finished Cast Iron nature & useful oil lube micro-reservoirs, enabling successfull cam-Tappet break-in process....I do see these micro pits on good, well broke-in flat tappets but this just looks undesirable wonky & a failure source point...Any experienced thoughts welcomed.....tom.

 

[moparedtn]

*cough*Comp??*cough*

 

[Road Rat]

I thought you were going with the tool steel lifters?

 

[kiwigtx]

Cast iron by it's very make-up will always shows signs of pitting under a microscope....the degree will vary according to the care taken during the casting and machining processes.

Are we talking craters, or pits?

 

[moparedtn]

Cast iron by it's very make-up will always shows signs of pitting under a microscope....the degree will vary according to the care taken during the casting and machining processes.

Are we talking craters, or pits?



View attachment 1056989

That freakin' icon of yours, I swear....

 

[kiwigtx]

That freakin' icon of yours, I swear....

I'm just venting a bit.

 

[Don Frelier]

More like crop dusting I would say

 

[Mark Barnes]

Unless said pits are large enough to cause a weakness, they should be fine. Oil lube micro reservoirs? That's what I would tell you if I were selling them too, but it doesn't mean it's true.

 

[66Satellite47]

All castings have tiny imperfections. That's a casting.

 

[threewood]

I would be more worried about the shape of the contact face. Check them all for a slight dome shape and make sure they aren't dead flat.

 

[70rcode]

Upon re-inspecting, not the cast iron pores, but more like after manufacturing, unprotected, general mishandling "ding" hit gash & scars much larger & deeper than the finishing grinding stone swirlie marks..I can't get a good focused pix yet..

 

[70rcode]

Anyone know if the $20.00 each, Mellings # 299374 Individually packaged Mopar solid flat tappet arrives better protected & un-scarred ??