thanks alot ford!!!!!

[Kracker Jack]

Here ya go!!! Another story of a snapped plug on a 5.4. I'm not and engineer but you can just look at the wall thickness on these plugs and tell there was gonna be an issue! Garbage!!!!!!!!!!!!!!!!!!!!! Got the lilse tool coming tomorrow to extract the 2 dead soldiers in the head.

[THEFERMANATOR]

Unfortunately this is all to common for the FORD mod motors.

[aussie]

looks like to me a bad quality plug or it was over tightened should always use some lube on the new plugs---btw why is it fords fault did they fit the spark plugs

[spareparts]

Aussie, its a specific application for a spark plug that is used only in Ford Triton series engines, they are notorious for breaking plugs off in the head, its a pretty crappy design from the get go. I don't care for the motors at all(mine blew up at 105K). Ford may have not made hte spark plug, but they set the design and spec for it(pretty crappy)


On another Ford repair note(actually navistar) I'm replacing the high pressure oil lines on my van today(7.3 diesel), I got hte replacement lines from the ford dealer, they told me I needed to replace the fittings that screw into teh heads as well, any one done this? Any input?

[cfelton]

KJ, funny thing you posted that up. I was getting two of my trucks inspected thursday at the garage at the end of my road and the guy there was having the same trouble with a Ford truck he was changing plugs in. He said it was a design flaw and he had broke off as many as five plugs on one motor. He and I agreed using Felpro copper anti-seize definately helps this kinda trouble.

[Kracker Jack]

I changed plugs on my buddys 5.4 and had the block at room temp,dis the penetrating oil overnight, and broke the plugs loose and did back and forth teqnique for removal and didn't have a problem on none of his plugs. I went to do my personal truck and I broke one. It broke below the threads so it completely out of your hands when it breaks on that lower bond on the plug. This is ideal situation I'm dealing with.worse case scenario is pulling the threads out with the plug. I'm lucky!!!!! I only had 2 break.

Aussie, as spare stated already it was not my error. It a terrible design flaw in these motors.

[smokeonthewater]

spare, tell ford to piss off... the fittings should be FINE

here is a kit to replace what actually wears

dieselorings.com is a great resource for anyone who owns one of these powerstrokes

EDIT:
FWIW tho I re-used my 300,000+ mi fittings without replacing anything on them and haven't had any issues for more than a year

[spareparts]

all ready got them on, btw the fitting o-ring kit is $9, the whole fitting was $12. I went ahead and put the fittings on, figured I had them in hand, and it wasn't too hard

[smokeonthewater]

Well heck that's not as bad as I figured it'd be.

[aussie]

well i dont quite understand how a spark plug can break ----only alot of force can break it so if there tight why keep pushing till they break ---a bit of spray back and forth motion and some patence should get them out ---i see it as a spark plug and a aluminum head which is always a problem the only spark plugs i ever have problems with is from people cross threading them ----why is this desighn different from other engines