MUST READ - How to break-in a new/rebuilt engine!
 

I did some research after reading Joseph Davis's comments regarding Hotrex breaking-in his newly built engine. He stated "an engine is broken-in after 20 minutes at full operating temperature." I had some doubt about the time, and thought I would try and validate his statement (I know he does not need me to do it :3). The link below addresses bikes, snow mobiles, CARS, etc. Just thought I'd share the informattion. :y

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

Re: MUST READ - How to break-in a new/rebuilt engine!
 

I used to break in my Banshee by holding it WOT right after kicking it over

Re: MUST READ - How to break-in a new/rebuilt engine!
 

i bet if you searched break-in you would've found this already posted here :l

Re: MUST READ - How to break-in a new/rebuilt engine!
 

You actually believed him? Your making this out to be like a gov't cover up. Please... if you thought a engine is broken in after 20 minutes and had to second guess it then your a ------- idiot. Go sit in the corner you moron.
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Re: MUST READ - How to break-in a new/rebuilt engine!
 

^ scrolling through that makes me dizzy :S

Re: MUST READ - How to break-in a new/rebuilt engine!
 

stillnoturbo, you are such a ------- ass. Did you read the article before you start talking out your ------- ass? It stated that break-in refers to the sealing of the piston rings. It stated the break-in period depends on the condition of your cylinders. It also stated that after doing the various road driving at various speeds, you would have accomplished most (not all jackass) of the rings sealing. Most of the road work could be done winthin 20 minutes.

So, yes I had some doubt about the 20 minutes MISS -----. So what? :4 You are just like some of the other fuckers that come on here, don't read available information, and talk ---- to gain some attention. Well, you've got it MISS -----!

Re: MUST READ - How to break-in a new/rebuilt engine!
 

I'm going to break my engine in according to that method.

It makes the most sense and I know a lot of people who have had sucess using this method.

I'd break my engine in on the dyno if it were turbo, but for now I'll just do it on the street.

Re: MUST READ - How to break-in a new/rebuilt engine!
 

damn my engine builder stated no breakin period lol

he said we'll tow it to the dyno and tune it from start up wow

Re: MUST READ - How to break-in a new/rebuilt engine!
 

lol ...bahahahaha tune right after the build... this guy has no idea what the ---- he is doing ..maybe to rough tune it break it in on low boost and then redyno it .. fine tune

Re: MUST READ - How to break-in a new/rebuilt engine!
 

that guys a moron, "rings are just to scrape the oil and the ring tension agnist the cylender doesnt hold air in, ahahaha. yeah sure it doesnt. take your rings out and see how much compression you build :y

Re: MUST READ - How to break-in a new/rebuilt engine!
 

with mine i plan on letting it heat up for a while while im double checking all connections. then due a quick street tune. take it ezsy for a lil while, then straight to dyno

Re: MUST READ - How to break-in a new/rebuilt engine!
 

I think you misunderstood him. He said the spring tension is just there to scrape the oil. He also said that the rings don't seal just from spring tension, they seal because of the pressure of the gas.

I couldn't find where it said "rings don't seal the cylinder" or anything like that.

"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."

Try again.

Re: MUST READ - How to break-in a new/rebuilt engine!
 

use this exact page as a reference when we broke in my brother's GSR. Redlined it a few times and slowing down with engine braking. I guess the load that the engine braking applies is what really breaks in the rings.

Re: MUST READ - How to break-in a new/rebuilt engine!
 

Miss -----? I don't need to read cause reading is for losers. I just post on from what i see from pictures. I NEVER LEARNED TO READ!!! :'( There I said it! :P

Re: MUST READ - How to break-in a new/rebuilt engine!
 

then stfu in this thread. We already have too many people that dont know wtf they are talking about :S

Re: MUST READ - How to break-in a new/rebuilt engine!
 

oh yeah, then why do 2 strokes have ring tension, is it to keep the oil out of the combustion chamber ;)

Re: MUST READ - How to break-in a new/rebuilt engine!
 

The method described works well. My last build i let it warm up to operating temp then just rallied it w/ 6psi of boost. After 45 miles, i did a compression test and i had 150psi across the board (8:1). I then changed the oil at 100 miles, then again at 1500.

Re: MUST READ - How to break-in a new/rebuilt engine!
 

Big ole' fat repost, but still has some decent info. If i'm not mistaken there was a huge bunch of threads started last year or so about this same topic. Everyone seemed to have their own opinion on what works for them, but nobody really got violent with it. Everyone just needs to calm down and relax for a change instead of gettin all pissy about ---- :P