BReak In

[spardikis]

Hey guys how do you go about breakin in your rebuilt b16a(stroked to 1740cc) engine... how do u guys break in your new engines... rev's or quiet..

[exquisit]

rev hard

[ACTI0NMAN-1]

1000k's of easy driving

[spardikis]

hmmmm

[weeman]

read this, possibly the best way to break in an engine

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

in my old ta22 i took it easy when i ran the engine in, it ended up not wanting to rev above 5000rpm, sounded like it was valve bouncing or something cause the rings didn't seal proply

[Lukezen27]

Same prop's here

Run it hard or so they say :p
http://www.hondatech.com.au/forum/showthread.php?t=117


Anyone here in OzHonda done this?

LukeZen

[spardikis]

yeah lukezen ive also read that thread on Hondatec, and that sparked up a debate with my mate... Again has anyone used the Rev in methodss..

[SKREMN]

i just got my done
cant hold my self back from going hard
rev it but not all the way out just enugth
in my case my car used to red line at 6 1/2 now its 8 1/2 so i drive as if its my old motor satifys me enugth for now
still faster!
and v-tec

[pgclee]

no Vtec...drive it range from 4500-5000rpm always...
after 1000km, service your car...then drive for another 300km, for like 6000-6500rpm, then only start VteKing your car...

[Lukezen27]

no Vtec...drive it range from 4500-5000rpm always...
after 1000km, service your car...then drive for another 300km, for like 6000-6500rpm, then only start VteKing your car...

What about this artical?

http://www.hondatech.com.au/forum/showthread.php?t=117

[pgclee]

wow...great article...good stuff...

[exquisit]

lik i sed
rev it hard....

[chinkdood]

how harD? lol redline everygear jstu once? n thast run in?

have u tried thsi exquisit?

[Lukezen27]

lik i sed
rev it hard....

But has any OzHonda ppl tried it and what was the outcome?

[SKREMN]

I blew the head in my car 80kms from getting it back
I didnt exactly drive it hard but I wasnt easy on it either and then it went...
never really found out what caused it just got fixed

[string]

Blew the head doesn't mean anything. What happened?

[SKREMN]

it blew and water was getting into the oil cars fine now done 760 km's so far

[exquisit]

rev it hard....not sit on the reline

search the net
heaps of articles surrounding it

theres on posted by jimneh on tech question sections

[Lukezen27]

rev it hard....not sit on the reline

search the net
heaps of articles surrounding it

theres on posted by jimneh on tech question sections

Would be good if someone whose done this would post how they went and its there engine still going strong??

Found the original post
http://www.mototuneusa.com/break_in_secrets.htm

LukeZen

[vividjazz]

After seeing Honda bikes assembled and come of the production line in Japan 1st hand there is absolutely no need to baby a modern new engine.

After a bike is finished being assembled it gets a small amount of fuel is fired up and driven onto a dyno where is redlined through each and everyone of the 6 or 7 gears (depending on the model) and then shutdown and wheel away to be prepared for packing, crating and shipping.

[Lukezen27]

After seeing Honda bikes assembled and come of the production line in Japan 1st hand there is absolutely no need to baby a modern new engine.

After a bike is finished being assembled it gets a small amount of fuel is fired up and driven onto a dyno where is redlined through each and everyone of the 6 or 7 gears (depending on the model) and then shutdown and wheel away to be prepared for packing, crating and shipping.

So would you use this method after a rebuild?

[pgclee]

But if anyone is trying this, tell us the result...
i won't advice people to rev over 6k rpm...

[string]

But if anyone is trying this, tell us the result...
i won't advice people to rev over 6k rpm...
And your basing this on what exactally?

Bearings don't have to "seat", rods and pistons don't have to stretch into place or anything....

If I ever rebuild, i'll be flogging to to redline from the beginning.

Did it on a friend's SR20 rebuild. Hasn't missed a beat 10,000k's later.

[h22a accord]

i did it the mototune way sort of.


i rebuilt an engine for my mini once and the moment i got the engine running i drove it up the road in 2nd gear with the handbrake on varying the revs between 2000-3500.
I did this to put as much load on the piston rings as i could. i did this until the engine warmed up then i put the car in 2nd gear at 1500rpm and floored it up to 4000rpm, i put the clutch in, slowed back down and repeated this step about 5 times.

for the 1st 400km, i drove it like this, not revving it over 5000rpm and flooring it in a highgear to put as much load on the engine as i could.


After 400km, i drove it very hard and when i sold the car with 30000km on the rebuilt engine it still went as hard as it did after it was run in and i wentharder than any other mini with the same engine capacity.


Dont baby ur new engine, give it to it, just dont over rev it.

If u read the mototune article and understand the reasoning behind it all, it makes perfect sense and the way i ran in my old mini engine is testament that it really does work.

[spardikis]

Well here's a go guys... after speaking with a few people around heres what i think...
First thing after a rebuild run ur engine for about 30-40mins, going up and down the rev range without redlining or vtec'ing Then dump the oil. This will get any metal shavings or left over bits out. Then after the oil change, break the car in the way u are going to drive it.. If u are gonna sit on the moter way and drive slow, break it in slow. If u are gonna drive it hard and fast, break it in hard.

The theory being... One must load the rings from the start, for how they are going to operate. That way they are used to the cars "Normal style" of operation - this includes temperature and pressure levels. Rather than them being used to a lower pressure and temperature and then being asked to perform at a completly different set of operating standards. Think of it like this... your rings bed in being used to a lower oil pressure and temp of a slow break in and they seal fine. Then after your 1000km at low RPM u rev the daylights out of her sending the temp and oil pressure through the roof and wonder why the ring seal fails.

For example if i may used one... u dont train soft and all nansey and go out and play hard .

It will also bring out any building problems that were caused by your builder and or faulty parts.. Imagine this... you do your 1000k before hitting vtec and then when u finally do hit vtec the engine makes a noise or doesnt like it or burns oil or what ever... u take it back the mechanic and they would be like hey man u been driving it for 1000k with no problems - must be something u have done....

In sayin all of that this is a theory that ive peiced together after speaking to and reading loads. "I take no responsibility nor OZ honda" for anyone's problems or screw ups.. u just have to do what u think is best with the advise' and the tools you have at your disposal..

After speaking with a few different people this is what i feel is best although there may not be any right or wrong way, or any fool proof plan to breakin in an engine. The one thing that i have found that is conjerant (the same).. ((I cant spell))) with both methods is to run your engine for 30 to 40mins working through the rev range without giving it shit to say 4rpm and dump the oil to rid the engine or any left over material, metal filing etc.. The other is make sure u vary the rev range.. if ur going to break it in slow and easy or hard and fast, rev from idle to your highest rev mark often - no sustained single RPM driving such as motor way driving. loads of stop start, stop start...anyway my 25c