New Engine break-in

[greencar]

IS there any recommendations on how about I do this. It is a new reman. ka24de motor.

Thanks guys

-Dan

[Ka24de240sxS13]

Just respect the 1000 mile break in period, and dont rev the engine on the first start.

[Razi]

Yeah alot of people say not to rev it too much, but other people say you need to rev it high to break in the rings properly. I have no clue which one to listen to.

[brizanden]

^def do not rev it high for the break in period lol. idk who told u to but they are an idiot and probably broke whatev they did that too.

[-RJ-]

i drove mine for 500 miles shifting under 3k using regular oil, then did a royal purple 5w 30.

[jkerr240]

Iv read that if you rev it hard and let it decell from a high rpm it does help the rings seat, Kinda like you would a street bike when your breaking it in.

[brizanden]

^ a dealer told my friend who bought a 600rr to not rev it over 6k for the first 500 mi. or so

[CC_nismo_240sx]

Yea I would respect the 1000 mile break in period and don't go over 5 or 6k for at least the first 700-800 mile just to be safe

[brizanden]

well the reason the techie said stay around 6k on the bike was cause it can redline at 13k...........

[Reno]

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

What's The Best Way To Break-In A New Engine ?? The Short Answer: Run it Hard !

Why ??Nowadays, the piston ring seal is really what the break in process is all about. Contrary to popular belief, piston rings don't seal the combustion pressure by spring tension. Ring tension is necessary only to "scrape" the oil to prevent it from entering the combustion chamber.

If you think about it, the ring exerts maybe 5-10 lbs of spring tension against the cylinder wall ... How can such a small amount of spring tension seal against thousands of PSI (Pounds Per Square Inch) of combustion pressure ?? Of course it can't.

How Do Rings Seal Against Tremendous Combustion Pressure ??

From the actual gas pressure itself !! It passes over the top of the ring, and gets behind it to force it outward against the cylinder wall. The problem is that new rings are far from perfect and they must be worn in quite a bit in order to completely seal all the way around the bore. If the gas pressure is strong enough during the engine's first miles of operation (open that throttle !!!), then the entire ring will wear into the cylinder surface, to seal the combustion pressure as well as possible.

The Problem With "Easy Break In" ...The honed crosshatch pattern in the cylinder bore acts like a file to allow the rings to wear. The rings quickly wear down the "peaks" of this roughness, regardless of how hard the engine is run.

There's a very small window of opportunity to get the rings to seal really well ... the first 20 miles !!

If the rings aren't forced against the walls soon enough, they'll use up the roughness before they fully seat. Once that happens there is no solution but to re hone the cylinders, install new rings and start over again.

Fortunately, most new sport bike owners can't resist the urge to "open it up" once or twice, which is why more engines don't have this problem !!

An additional factor that you may not have realized, is that the person at the dealership who set up your bike probably blasted your brand new bike pretty hard on the "test run". So, without realizing it, that adrenaline crazed set - up mechanic actually did you a huge favor !!

http://forums.beyond.ca/showth...43504
Modified by Reno at 6:14 AM 4/11/2008

[jkerr240]

YES!!! thank you, i knew i red that somewhere before. I knew someone else did too. soo thank you for proving my point

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

What's The Best Way To Break-In A New Engine ?? The Short Answer: Run it Hard !

Why ??Nowadays, the piston ring seal is really what the break in process is all about. Contrary to popular belief, piston rings don't seal the combustion pressure by spring tension. Ring tension is necessary only to "scrape" the oil to prevent it from entering the combustion chamber.

If you think about it, the ring exerts maybe 5-10 lbs of spring tension against the cylinder wall ... How can such a small amount of spring tension seal against thousands of PSI (Pounds Per Square Inch) of combustion pressure ?? Of course it can't.

How Do Rings Seal Against Tremendous Combustion Pressure ??

From the actual gas pressure itself !! It passes over the top of the ring, and gets behind it to force it outward against the cylinder wall. The problem is that new rings are far from perfect and they must be worn in quite a bit in order to completely seal all the way around the bore. If the gas pressure is strong enough during the engine's first miles of operation (open that throttle !!!), then the entire ring will wear into the cylinder surface, to seal the combustion pressure as well as possible.

The Problem With "Easy Break In" ...The honed crosshatch pattern in the cylinder bore acts like a file to allow the rings to wear. The rings quickly wear down the "peaks" of this roughness, regardless of how hard the engine is run.

There's a very small window of opportunity to get the rings to seal really well ... the first 20 miles !!

If the rings aren't forced against the walls soon enough, they'll use up the roughness before they fully seat. Once that happens there is no solution but to re hone the cylinders, install new rings and start over again.

Fortunately, most new sport bike owners can't resist the urge to "open it up" once or twice, which is why more engines don't have this problem !!

An additional factor that you may not have realized, is that the person at the dealership who set up your bike probably blasted your brand new bike pretty hard on the "test run". So, without realizing it, that adrenaline crazed set - up mechanic actually did you a huge favor !!

http://forums.beyond.ca/showth...43504

Modified by Reno at 6:14 AM 4/11/2008