Im not sure if this is a re-post or if it even belongs in advanced tech. But i guess break in is a part of engine building.


http://www.mototuneusa.com/break_in_secrets.htm

any comments? his article on smaller ports is pretty interesting too.

 

It has been posted before, but a reminder never hurts. After a short warmup period and oil and filter change, that is how I would do it.

 

I just run the **** out of it, works great

 

Any there any truth to this? I know I read basicly the entire page, but im always up for the masses opinion.

 

Interesting Indeed. I'm getting ready to fire up mine so I'm curious to hear some the of the veterans Machinist / Builders chime in?? (mdacton no disrespect here intended at all. I firmly agree with your approach as a matter of fact!!)

My biggest question is about the ring pressure he mentioned. Does increase throttle apply outward pressure on the rings??

Thanks in advance.
Kirk

 

I believe that's the whole point, seat the rings.

 

Me too, in general terms. A little different for a flat tapppet cam and I do run it at ~2,000rpm until fully warm while looking for leaks, checking the timing, etc. Let it cool, take a good look and make sure it's good, check the valve adjustment, change the oil and THEN beat the **** out of it

One of THE best feelings is the first time you run a new HP or race motor.

Rich