Is this true?
05-01-2009, 10:38 PM
#1
2nd Gear Member
Thread Starter
Join Date: Mar 2009
Location: Parrish,Brandenton,Tampa,Florida,Gratiot Michigan
Posts: 216
Is this true?
is this true its very hard to explain on here
and im very concerned about this
please help me on this
its at 6:23
http://www.youtube.com/watch?v=bQiqdKYarxM
and im very concerned about this
please help me on this
its at 6:23
http://www.youtube.com/watch?v=bQiqdKYarxM
05-02-2009, 06:49 AM
#4
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
95% accurate, particularly the comments regarding "hot-rodding" engines that were driven lightly during their previous life--what he said is dead-on.
You see this happen all the time when someone buys a "like new", 5 to 7 year-old, "low-mileage", car owned by some dick who proudly proclaims that he "has babied the car", "always shifted at 2500 rpm", and "never had it over 70".
The new owner takes it out and drives it like it was meant to be driven and before long all sorts of problems pop-up--oil burning, knocks, valve noise, etc. As the fellow in the video stated, the higher speeds, if consistently applied, produce all sorts of new stresses which in turn introduce changed relative motions and contact patterns that the engine has never before experienced.
The new range of motion and contact patterns break things (like top rings), and produce new wear patterns on top of the old patterns (increasing bearing clearances), and can push things like HLAs to new extremes making them stick.
This is often exacerbated because the aforementioned "dick" was one of those who felt that, "because he didn't drive it hard", changing oil every 7500+ miles (when he got around to it) was all that was needed--you get a 5 year-old car that's had the oil changed three times--at Jiffy-Lube...
You see this happen all the time when someone buys a "like new", 5 to 7 year-old, "low-mileage", car owned by some dick who proudly proclaims that he "has babied the car", "always shifted at 2500 rpm", and "never had it over 70".
The new owner takes it out and drives it like it was meant to be driven and before long all sorts of problems pop-up--oil burning, knocks, valve noise, etc. As the fellow in the video stated, the higher speeds, if consistently applied, produce all sorts of new stresses which in turn introduce changed relative motions and contact patterns that the engine has never before experienced.
The new range of motion and contact patterns break things (like top rings), and produce new wear patterns on top of the old patterns (increasing bearing clearances), and can push things like HLAs to new extremes making them stick.
This is often exacerbated because the aforementioned "dick" was one of those who felt that, "because he didn't drive it hard", changing oil every 7500+ miles (when he got around to it) was all that was needed--you get a 5 year-old car that's had the oil changed three times--at Jiffy-Lube...
05-02-2009, 10:51 AM
#6
2nd Gear Member
Thread Starter
Join Date: Mar 2009
Location: Parrish,Brandenton,Tampa,Florida,Gratiot Michigan
Posts: 216
so what do i do to prevent this from happening i want to drag it at the drag strip an stuff
is there a way to like break it in lol if you no what i mean
its a 04 mustang gt 84000miles manual
is there a way to like break it in lol if you no what i mean
its a 04 mustang gt 84000miles manual
05-02-2009, 02:57 PM
#7
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
A 2004 with 84k on it (16k+/year) was at least driven regularly--what do you know of it's history?
If it was ""babied" then you will most likely have problems if you start beating on it now...
05-02-2009, 03:21 PM
#9
TECH SAVANT
Join Date: Dec 2006
Location: Saint Augustine, FL
Posts: 10,938
05-02-2009, 03:41 PM
#10
5th Gear Member
Join Date: Nov 2007
Location: Maryland
Posts: 4,955
!edit: found his profile on youtube, canada it is!