YACT: How should I drive to break in a rebuilt engine?

[tnitsuj]

Keep from revving it up, stay off highway, anything?

 

[MustISO]

Same way you'd break in a new car engine, I guess. No flooring it, stay of the highway. Change oil and filter after 500-1000 miles.

These may not apply to you:

http://www.smartsynthetics.com...nverting_to_amsoil.htm

http://www.aircooled.net/gnrls.../articles/engnbrkn.htm

 

[TheLonelyPhoenix]

As stated above, its just like breaking in a new engine.

Keep an eye on your oil levels for the first 1500-2000 miles, you'll be burning oil while the piston rings set back in... keep some in your garage in case it starts dropping too low. Avoid heavy acceleration, but drive a variety of engine RPMs to help seat the piston rings back in again. Complete oil changes at 500, 1500, and 3000 are a good idea, then on a normal schedule after that.

 

[Ausm]

Back as fast downthe biggest hill you can find and dump the clutch 😉

 

[thedarkwolf]

Whatever the rebuilder says if you want to keep the warranty. There are several different thoughts on how to break in an engine. Some say drive it easy and some say beat the living hell out of it.

 

[chowmein]

Oil Change 3k miles - no excuses. Highway would be more healthy as oppose to local congested traffic. keep all fluids fresh.

 

[DeMeo]

watch a couple of reruns of Dukes of Hazard.
Drive like that!

Oh, and get pictures - we want to see them!

 

[davew0670]

my engine died yesterday🙁 If anyone needs any last minute gift ideas for me, I would like a new jeep grand cherokee v8. Thanks in advannce

 

[DurocShark]

There are a few big rebuilders who are suggesting full load runs for the first 300 miles and then an oil change.

The thinking is driving gently doesn't mate the rings to the cylinder nearly as well as full load runs. The pressure of a full charge in the cylinder pushes the rings against the cylinders with more force.

Haven't tested personally, but the logic sounds reasonable.

 

[batmang]

pop your ebrake, slam it into first, floor it, slam it into second, floor it, slam it right into reverse and let go of the ebrake.

 

[CaptnKirk]

I believe the mandatory fuel ratio for the first 100 miles or so
is a mix of 85% Nitromethane and 15% Methyl Alcohol.
Using a Roots Blower is optional.

 

[Apex]

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

 

[thomsbrain]

Originally posted by: Apex
http://www.mototuneusa.com/break_in_secrets.htm

i will definetely take the advice of some guy on the internet over the entire automotive industry, Car Talk, and all common wisdom.

 

[TheLonelyPhoenix]

Originally posted by: thomsbrain

Originally posted by: Apex
http://www.mototuneusa.com/break_in_secrets.htm

i will definetely take the advice of some guy on the internet over the entire automotive industry, Car Talk, and all common wisdom.

Obviously every owner's manual in existence is full of sh!t, you n00bs. 😛

 

[BullyCanadian]

hmm, I never knew rebuilt engines are just like new engines? Is there a reason to get your engine rebuilt other than having oil leak and having masive compression lost? I was always under the impression that rebuild engines weren't good, but I guess I was wrong ?

 

[Apex]

Originally posted by: TheLonelyPhoenix

Originally posted by: thomsbrain

Originally posted by: Apex
http://www.mototuneusa.com/break_in_secrets.htm

i will definetely take the advice of some guy on the internet over the entire automotive industry, Car Talk, and all common wisdom.

Obviously every owner's manual in existence is full of sh!t, you n00bs. 😛

It's also how race cars get broken it.

Anyone have dyno's from common wisdom break-in's?

 

[rotarychainsaw]

If you break it in like a puss, thats what its gonna run like.