7.3 major tune up

[lifewitlooie]

my truck is 154000 miles and never had any major work done to the engine, is there a tune up that is supposed to be done? tune up meaning, maybe timing chain replacement or some crap like that. stuff that should be done so no catastrophic mechanical failure happens.

[Dave]

No not really just regular oil changes and fuel filter replacements

[lifewitlooie]

its not like a car.. where if u dont replace the timing chain it will destroy the engine when it breaks? i think fer gassers its like 75,000 miles er sumthin like that

[Dave]

these engines are built alot heavier duty than a gasser, there is a section in your owners manual that says what ford reccomends doin at certain milage. None of it is much more than oil changes and fluid flushes

[Blue01F250]

there are no timing chains in these engines There are some sort of gears and directly mesh with each other - no chains or belts - as Marc explained and apparently I didn't remember too well.

[lifewitlooie]

kickbutt. 7.4 4 life

[Blue01F250]

hahaha - glad I could make your day

but I'd let Marc and Scott chime in on what ya need to do

[lifewitlooie]

i dont want them 2 chime in. Im sick of them being right all the time HA!

[alabamafrog]

The only thing that will hurt a PSD is dirty air and contaminated fuel So that’s why I recommend the Baldwin open element air filter mod and the fuel tank-prepump filter mod. There are lots of internal engine and mod pics in my link if you get bored and want to see the timing gears and such.