500 mile break in

**Just-in** · 09-19-2006, 11:41 PM

whats this I hear about a 500 mile break in on a new truck?
I knew to go easy on it for a while but my buddy kept messin with me earlier tonite...

what kidna damage could I have done to my truck (200 mi) by screetchin a little rubber and whatnot?

galaxycrew · 09-19-2006, 11:51 PM

Quote:

Originally Posted by Just-in

whats this I hear about a 500 mile break in on a new truck?
I knew to go easy on it for a while but my buddy kept messin with me earlier tonite...

what kidna damage could I have done to my truck (200 mi) by screetchin a little rubber and whatnot?

i broke my truck and every other vehicle in for 3000....

**Just-in** · 09-19-2006, 11:53 PM

what kind of damage could i be looking at for this one block escapade?
I mean I'm confused I hear so many different things some people say break it in the way it will be driven some say drive it like a old granny. some say vary the rpm's and all that

top20cc · 09-20-2006, 12:09 AM

The fact remains that the truck is covered under factory warrenty for 36k miles. Regaurdless of how you drive it.

**Just-in** · 09-20-2006, 12:12 AM

how about the tranny and rear end from accellerating hard like that?
sorry about all the questions, amazing how worried you get sometimes after the heat of the moment fades off and you realize what you've done to something you've worked so hard for heh...

top20cc · 09-20-2006, 12:15 AM

lol, been there! Since the entire drivetrain is covered I wouldnt worry. They say to break it in for the longevity. Keep up on maintenance and if any problems are present than they should be found during warrenty coverage.

**Just-in** · 09-20-2006, 12:17 AM

thanks probably a decent thing I opted for the extended warranty

Wildmike · 09-20-2006, 12:51 AM

On my older Nissans break in was 1000 miles. On the Titan it was 1200 miles. Must be for some reason. As long as it was only for a short burst should be no problem. Now holding it wide open for a mile or more is a whole different story. I think if affects the tranny the most.

Just my .02

KYDeepwater · 09-20-2006, 05:36 AM

Since the pistons are coated, I don't think there is much going on with settling in the piston rings like old engines used to do. I've heard not to run a new vehcile at the same speed for a long time, it will leave a groove on the cylinder walls that could cause oil seepage later in its life.
The worst thing you could have done is not allow the ends of the gear teeth in the rear diff to heat treat and mesh themselves properly. The gears need some meshing when new to "polish" the ends of the gear teeth surfaces so they fit better. Too much jerking of them when new could cause spalling of the metal surface (little chips and cracks) that would then keep wearing. Most of those gears are powdered metal, and are very brittle until they are heat treated. Unfortunately, since the car manufacturers beat on the suppliers to lower costs, only the ends of the gears are subjected to heat treating prior to installation. I wouldn't worry too much about it though, if problems do occur, most likely you will see them before the warranty period is up.

gixxer0.6g · 09-20-2006, 08:40 AM

DRIVE IT LIKE YOU STOLE IT!!! I've had three new bikes and this truck and there is a noticable power difference if you baby it during the break in. I don't know if it's good for the truck but I really think you'll get more power out of it if you run it hard during break in. There's an ariticle on it but I'm not sure where it is. I think it's called a moto-tune something or other break in.

**Just-in** · 09-20-2006, 09:54 AM

Quote:

Originally Posted by KYDeepwater

Since the pistons are coated, I don't think there is much going on with settling in the piston rings like old engines used to do. I've heard not to run a new vehcile at the same speed for a long time, it will leave a groove on the cylinder walls that could cause oil seepage later in its life.
The worst thing you could have done is not allow the ends of the gear teeth in the rear diff to heat treat and mesh themselves properly. The gears need some meshing when new to "polish" the ends of the gear teeth surfaces so they fit better. Too much jerking of them when new could cause spalling of the metal surface (little chips and cracks) that would then keep wearing. Most of those gears are powdered metal, and are very brittle until they are heat treated. Unfortunately, since the car manufacturers beat on the suppliers to lower costs, only the ends of the gears are subjected to heat treating prior to installation. I wouldn't worry too much about it though, if problems do occur, most likely you will see them before the warranty period is up.

what are some signs of the rear diff going out?

FtWTitan · 09-20-2006, 01:44 PM

Quote:

Originally Posted by gixxer0.6g

DRIVE IT LIKE YOU STOLE IT!!! I've had three new bikes and this truck and there is a noticable power difference if you baby it during the break in. I don't know if it's good for the truck but I really think you'll get more power out of it if you run it hard during break in. There's an ariticle on it but I'm not sure where it is. I think it's called a moto-tune something or other break in.

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

This guy agrees with you. I'd like to see it done on a full size truck before I did it myself. I'm definitely not one to stick to the "it's always been done this way" technique, but I'm not stupid enough to go against old wisdom either. Like Wildmike said, must be for some reason they put it in the manual, unless they're just copying and pasting old school engineering (which is a good possibility).

Wiscdave · 09-20-2006, 02:37 PM

LOL, I know about the break in period and all that..but if your truck had 10-15 miles on it when you got it. I probably beat the Sh$T out of it for 5 of those miles. I got in many and held it to the floor, burned the tires in 4*4 low, stopped and started many times with to the floor, so somebody is driving some of the trucks I test drove. And oh by the way, I did it to mine....no problems besides rear seals at 41k and getting faster....I NEED A PROGRAMMER.

gyrate · 09-20-2006, 04:52 PM

Quote:

Originally Posted by Just-in

what kidna damage could I have done to my truck (200 mi) by screetchin a little rubber and whatnot?

premature seal failure, valve tap, oil consumption

that's about it

but of course that's only, the "could".

**Just-in** · 09-20-2006, 05:48 PM

Quote:

Originally Posted by gyrate

premature seal failure, valve tap, oil consumption

that's about it

but of course that's only, the "could".

aaaaaah ****