Good one ....

Ok, I had a guy tell me this morning that his machinist told him if he rotates his new short block "75" times by hand, that he won't have to seat his rings because by rotating it in his manner will "pre-seat" the rings ...

This is news to me... LOL!! Is anyone else familiar with this new technology ?

Is that with or without synthetic oil?

What elevation you at?

sounds legit....  

didn't some factories run new engines on electric motors to break them in?

I'm callin BS on that one if he's talkin rotating by hand. It takes heat to seat rings.

I agree Rick ... I ain't never seen anyone can spin an engine fast enough by hand to create much of a heat source ... LOL!!

With "pop-up" piston, 3/4 full race cam, & electronically assisted mechanical fuel injection .... I could see it happnin... just sayin.

Sounds like a "hand job" to me.  

crittersf1 wrote:Sounds like a "hand job" to me.  

75 of them   

ThndrChkn wrote:Ok, I had a guy tell me this morning that his machinist told him if he rotates his new short block "75" times by hand, that he won't have to seat his rings because by rotating it in his manner will "pre-seat" the rings ...  

This is news to me...  LOL!!  Is anyone else familiar with this new technology ?

Doug,when you see that Guru engine builder again,tell him thx for the tip,and that you gave it 10 extra for good measures.  

After priming a new build with oil, don't you want the thing to light off asap so as not to wipe all of the lube off the cam lobes and such? This advice goes directly against that too.   

I seat the rings in the water box lol....

^^^ There ya go ... ^^^

ThndrChkn wrote:............his machinist told him if he rotates his new short block "75" times by hand, that he won't have to seat his rings because by rotating it in his manner will "pre-seat" the rings ...........

The story I always heard for years was that because the moly coating on rings was soft, by the time you rotated the engine enough to install the last piston, the rings on the first installed piston were already broke-in.

I kind of understand that part Dave... But like Rick stated, I was always under the impression that heat and compression were needed to fully seat the rings ...

Myself, once the engine is up to temp, I just run er up on the converter 3-4 times initially, then the first chance I get, I drive it like I stole it ...