i am going to rebuild my engine by putting in new higher compression pistons, new wrist pins, brand new ITR cams, brand new valve springs, new retainers, new head gasket , all seals..all o rings. new timing belt and new water pump, aem high flow fuel rail and new hasport motor mounts for my jdm b16a SiR II engine.
after all the work done. do i need to give it a proper run in, just like the break in for the new engine or i am ready to rock?
Looking to complete the engine work by the end of the year. and i will post some pics
thanks guys.



Modified by Powered by VTEC at 12:48 PM 12/18/2007

 

Simple answer is YES. 500 or so easy going miles (from what I recall). No mashing, flooring, etc driving. I don't know for sure about hitting VTEC before break in though but to be safe, I wouldn't. I'm pretty sure you'll pass 500 miles within a couple of weeks anyway.

 

Yes, it does need to be broken in. There is a bunch of different ideas on how to do this, some say break it in easy, some say give it to her hard right off. My friend will tell you to round up a few "over weight" friends and go climb some hills with them in the car. Hayne's manual will tell you yet another way, internet sites will tell you even more ways.

 

Yeah I've heard of things such as nothing over 4000rpms, no steep hills, keep it under 55mph on the freeway, etc. I think if you just drive normally and do your regular errands or day to day routine without trying to speed, you'll be fine.

*I've never heard of putting a few "over weight" friends and go climb some hills before, that's new to me LOL haha

 

This is how we break in motors.

http://laskeyracing.com/shop/breakin.htm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 24TEN &raquo;</TD></TR><TR><TD CLASS="quote">*I've never heard of putting a few "over weight" friends and go climb some hills before, that's new to me LOL haha</TD></TR></TABLE>

Yeah, this friend I am talking about went to college for automotive and thinks he knows everything. I WOULD NOT DO THAT TO A NEWLY BUILT MOTOR. But I did read a bulletin somewhere that said to run the engine very hard after it gets to temp, and I would not do that either.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luserkid &raquo;</TD></TR><TR><TD CLASS="quote">This is how we break in motors.

http://laskeyracing.com/shop/breakin.htm</TD></TR></TABLE>

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luserkid &raquo;</TD></TR><TR><TD CLASS="quote">This is how we break in motors.

http://laskeyracing.com/shop/breakin.htm</TD></TR></TABLE>

That article seems more geared towards breaking in a built motor that's untuned vs a built motor that is tuned properly before it even starts. It's definitely informative and worth reading though

 

thanks guys

 

haha that Lasky Racing break in write up was almost offensive...and funny at the same time. It called anyone who's ever blown their motor a dumbass in so many words. I'm no expert, but I agree with Lasky Racing...tune your motor BEFORE you break it in...BUT if it were me, I'd still drive it for about 500 miles before I start beating on it.

 

your cams themselves should have some kind of break in instructions before you even drive the car out of your garage. Other than that, a 1,000 miles or so of EASY daily driving you should be golden.
later

 

Although I would never advise doing this. my friends have all had better luck beating the crap out of their engines right from the first startup (after the engine was fully warm.)

With that said, I still would take the first 500 miles easy. I would suggest just spending a weekend putting around a city in stop and go traffic to get your first 500 miles, that would be better than simply cruizing at the same highway speed to break the engine in IMO.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Luserkid &raquo;</TD></TR><TR><TD CLASS="quote">This is how we break in motors.

http://laskeyracing.com/shop/breakin.htm</TD></TR></TABLE>

screw what I said, this is much better advice!