Just started my new build engine, and let it idle for around 40 min. Now I have changed the oil and filter. Is it normal to se "soot"/"carbon" in the oil and tiny aluminium "powder" from the oil in the oilfilter? is that from the break in procedure? Not big parts, more like "dust".

Thanks

 

Flat tappet cam, I presume?

If so, what did you use for cam lube?

 

the powdery stuff is normal when the rings seat to the cyl. walls and from the cam.. but not ALOT of it.. not sure about the carbon..

 

Sorry for the lack of info.
Its a hyd roller camshaft. And its not alot, you can se it if you "tilt" the bucket with all the oil in it, is in the bottom. Tiny "flakes" in aluminium color.
I checked the rockers and puch rods for wear but its all fine.



Thanks

 

yup, its the rings seating and everything else getting nice and happy with each other.. gotta "smooth" things out if you know what i mean.. (didnt mean that in a perv way)

 

Either that or an inadequately cleaned block during the rebuild.

Don't run too long before you drain the oil again.

 

i always change oil and filter a few hours after breakin on the engine stand then once again after a 1000 miles.. alot of oil but i dont want shavings in my oil.. i say always because i've broken in my motor 4 times! first build(threw rods), new build(cam down), new cam(cam down), new cam..

 

Thanks guys. I will change the oil again after 100km. Good dino oila is cheap
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ouch! talk about bad luck