Blown Engine!!!
Posting Guru
Joined: Jan 2004
Posts: 1,185
Likes: 0
From: Tennessee
Originally Posted by Tom Hoffman
Whats to break in? Crank is round, bearings round. cam round, bearings round.
pistons round cylinders round. Have oil good! have coolant good! ether it is built right or it is wrong. I have raced many years built lots of motors. start them idle them up bring them to temp. set timing, shut them off ,cool them off
look for leaks. start them back up.
GO LIKE HELL!!!
pistons round cylinders round. Have oil good! have coolant good! ether it is built right or it is wrong. I have raced many years built lots of motors. start them idle them up bring them to temp. set timing, shut them off ,cool them off
look for leaks. start them back up.
GO LIKE HELL!!!
Postmaster
Joined: Oct 2005
Posts: 3,034
Likes: 1
From: NJ
Originally Posted by Tom Hoffman
Whats to break in? Crank is round, bearings round. cam round, bearings round.
pistons round cylinders round. Have oil good! have coolant good! ether it is built right or it is wrong. I have raced many years built lots of motors. start them idle them up bring them to temp. set timing, shut them off ,cool them off
look for leaks. start them back up.
GO LIKE HELL!!!
pistons round cylinders round. Have oil good! have coolant good! ether it is built right or it is wrong. I have raced many years built lots of motors. start them idle them up bring them to temp. set timing, shut them off ,cool them off
look for leaks. start them back up.
GO LIKE HELL!!!
Senior User
Joined: Nov 2007
Posts: 416
Likes: 0
Originally Posted by PSD6litre40
Even a race engine needs proper break-in. Sounds like your one of the guys that always blows up and runs in the back.....
I owned a Pro gas car for 12 years with the same motor only a refreash from time to time.
Still the point is that motor does not need that kind of break in for street driving. Even if you were hard on it. How hard can you be on a stock truck.
Oh hold on I can't hear you John Force just drove by in his funny car to break in the motor. he said he drives it 4000 miles before he goes racing
Last edited by Tom Hoffman; Jan 22, 2008 at 09:21 PM.
Joined: Jul 2006
Posts: 1,328
Likes: 0
From: Capac MI
That stuff happens, Im sure he dont light race it all the time. We got the 5.4 when they first came out, had 3500 miles on it, started it up, ran like crap black smoke everywhere and it just quite. Motor was DONE! Ford put a new one in and it was all good. That sucks that happened to you man. Couldnt of happened at a better time either.
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Freshman User
Joined: Jan 2008
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Okay,just so everyone knows I do believe in the break-in period on new engines.I can't do anything about what happened (but am dissapointed)Just gotta go with what they tell me.They said with the delivery of the engine and install I should be picking up my truck next wednesday.Thats not bad turnaround time if it happens.BOY do I hope so.
Posting Guru
Joined: Nov 2006
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Originally Posted by Tom Hoffman
Not 4000 miles. maybe for you softer fella's a few hundred miles.
I owned a Pro gas car for 12 years with the same motor only a refreash from time to time.
Still the point is that motor does not need that kind of break in for street driving. Even if you were hard on it. How hard can you be on a stock truck.
Oh hold on I can't hear you John Force just drove by in his funny car to break in the motor. he said he drives it 4000 miles before he goes racing
I owned a Pro gas car for 12 years with the same motor only a refreash from time to time.
Still the point is that motor does not need that kind of break in for street driving. Even if you were hard on it. How hard can you be on a stock truck.
Oh hold on I can't hear you John Force just drove by in his funny car to break in the motor. he said he drives it 4000 miles before he goes racing
Senior User
Joined: Oct 2007
Posts: 104
Likes: 0
I broke in my f550 6.4 the first day i had it. I drove it home form the dealer 40 miles on the od, then hooked up to the trailer with 24000 pounds and drove 400 miles verying speed from 50 to 60 on the way. She broke in real quick!!!!!!!!!
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New User
Joined: Oct 2007
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Originally Posted by Tom Hoffman
Whats to break in? Crank is round, bearings round. cam round, bearings round.
pistons round cylinders round. Have oil good! have coolant good! ether it is built right or it is wrong. I have raced many years built lots of motors. start them idle them up bring them to temp. set timing, shut them off ,cool them off
look for leaks. start them back up.
GO LIKE HELL!!!
pistons round cylinders round. Have oil good! have coolant good! ether it is built right or it is wrong. I have raced many years built lots of motors. start them idle them up bring them to temp. set timing, shut them off ,cool them off
look for leaks. start them back up.
GO LIKE HELL!!!
Elder User
Joined: Feb 2004
Posts: 576
Likes: 0
From: Aromas, CA
yes they do need a break in period, but thats not what this thread is about.. im sorry about your truck man, sounds like yours was funky from the start. u should have felt alot more power than your buddys 7.3. but its good to hear that ford is taking care of u. talk about good service!!
Fleet Mechanic
Joined: Dec 2002
Posts: 1,664
Likes: 188
Originally Posted by SUPERDUTY_untouchabl
No wonder your truck is having problems 
.
.New engines produce lot's of heat and all surfaces have to take set to run smoother..
I read these forums and not just here and see so many with big problems..I never had these problems..but I look at their signiture and see big time Mod's and atitudes and then I know why they have big problems..
With that said I used to be a mod man and broke lot's of stuff but that was 30yrs ago..now I want reliability,problem free running..I keep it basically stock and don't hammer it.. I work it as a plow,haul a camper,go off road but I've learned how to take care of a motor..2 or 4 stroke. And I get years and years of good service from both types.. as well as the powertrain,suspension.
I have other prioritys now.
Don't get your feathers worked up but maybe someone can look at this post and realize you can't push hard without breaking stuff.
These 6.4's are doing real well...just read the fourms..there isn't any complaints.
Elder User
Joined: Jun 2007
Posts: 826
Likes: 1
From: The Sunshine State
Any engine can fail at any time no matter how it is maintained. Ford is replacing it so what's the big deal. The lack of blown engines posted on the 3 major 6.4 forums indicate that the 6.4 is a well designed engine
Posting Guru
Joined: May 2001
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FWIW ~ there's not a heavy duty diesel built for an OTR truck or heavy machinery that goes thru any type of break-in period. A loaded engine will seat the rings better than one that isn't loaded. I, too, don't believe in break in periods.
Senior User
Joined: Sep 2005
Posts: 161
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From: Orlando
Even though the manufactures recomend some things for new trucks and cars most say no breakin period needed. I have seen new Macks drop valves in only 2000 miles and once we got one new one with no oil in it. And I worked at a dealer