Official NCFTE Works Thread
FTE Legend
Joined: Jan 2009
Posts: 80,535
Likes: 97
From: Norlina NC
thanks.... wanna come over and help?? lol.. jk... if it wasnt for the fact ive had trouble tapping metal as thin as the pipe is i would just insert the fitting and leave it as is... but every time ive tapped metal the thickness of what the pipe is the threads always seem to rip out of it... hence why im going to put a lock nut on... might also put a toothed locking washer on just for added grip.. the lock nut isnt one of them nylon ones (which if it was id worry about the nylon melting) dunno what makes it locking without that stuff... but they call it a lock nut so guessing itll do the same thing...
Cargo Master
Joined: Apr 2006
Posts: 2,153
Likes: 0
From: Concord NC
Misfires. Take any charge air cooler apart, and you'll find oil and water. On engine's like the Ford Diesels, the charge air cooler is much larger. On the little eco boost it's fairly small, the water builds up, then a bump or a little added pressure and poof, water in the cylinder. I've been getting intermittent misfires for months. That is a likely cause. Plus it's a zero dollar deterrent to problems down the line.
Fleet Mechanic
Joined: May 2013
Posts: 1,256
Likes: 4
From: NC
Gotta call back the machine shop, he was supposed to start on my heads on thursday/Friday,I asked to know how many valves were bent when he got around to it. New cassettes are in the block, not much else I can do until I get the heads back. Called the machine shop, 2 bad valves, 1 bad lifter. So looks like it needs a hone job and some rings.
Senior User
Joined: Aug 2017
Posts: 156
Likes: 1
From: Farmville, NC
Those German 4.0's are a pain in the proverbial. I'm still having problems with the one in my better-halfs Mustang.
I do recommend a new oil pump whilst you have it out. I never and regretted it.
I do recommend a new oil pump whilst you have it out. I never and regretted it.
Cargo Master
Joined: Jul 2003
Posts: 2,730
Likes: 20
From: Four Oaks, NC
Trans in my old F-100 went out, it's a cast iron FMX. Beefy tough and heavy, but I think I am going to go with a C6 instead of rebuilding the FMX. My mechanic has one with a bellhousing to fit the 351C. Any thoughts?
Fleet Mechanic
Joined: May 2013
Posts: 1,256
Likes: 4
From: NC
I've found several $750 low mile 4.0s in 05+ mustangs, idk what the deal is with yhr the balance shaft in 4wd trucks. And I'm guessing yours lost oil pressure? The 4.0 ohv in our 94 is still healthy as a horse at dang near 400k miles, still doesn't burn oil.
Fleet Mechanic
Joined: May 2013
Posts: 1,256
Likes: 4
From: NC
What engine is in the f100? Not familiar with the fmx, but the c6 is a decent transmission.
FTE Legend
Joined: Sep 2003
Posts: 53,990
Likes: 2,398
From: NY and VA
The C-6 convertor (AKA bell) housing is engine specific. Also the better C-6 has ribs along the top of the case.
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Senior User
Joined: Aug 2017
Posts: 156
Likes: 1
From: Farmville, NC
Sludge, and the failure of the timing chain cassettes causing valve/piston to have a little meeting of minds.
Her Mustang Engine had the balance shaft too, original engine on a manual transmission and apparently that is correct.
Every one I've opened up at a junkyard has had the same sludge issue up in the valve covers so perhaps I'm being unkind to the PO.
I know I've never seen an engine so sludged up and I've worked on stuff from the 40s that's been in constant use, heavy hauler trucks from the 60s etc.
It was surprising to see that amount of build-up over only 12 years (at the time).
The sludge in mine was also in the oil pump inlet, just a lack of funds prevented the change.
If I could find a low miler 05 Mustang with clean rocker areas I'd likely get it just for the engine.
Cargo Master
Joined: Jun 2005
Posts: 3,045
Likes: 21
From: The Ole' North State.
The better halfs is a limited edition and a PO decided that it might be worth more at resale if he kept the original oil... I assume that's what his thinking was.
Sludge, and the failure of the timing chain cassettes causing valve/piston to have a little meeting of minds.
Her Mustang Engine had the balance shaft too, original engine on a manual transmission and apparently that is correct.
Every one I've opened up at a junkyard has had the same sludge issue up in the valve covers so perhaps I'm being unkind to the PO.
I know I've never seen an engine so sludged up and I've worked on stuff from the 40s that's been in constant use, heavy hauler trucks from the 60s etc.
It was surprising to see that amount of build-up over only 12 years (at the time).
The sludge in mine was also in the oil pump inlet, just a lack of funds prevented the change.
If I could find a low miler 05 Mustang with clean rocker areas I'd likely get it just for the engine.
Sludge, and the failure of the timing chain cassettes causing valve/piston to have a little meeting of minds.
Her Mustang Engine had the balance shaft too, original engine on a manual transmission and apparently that is correct.
Every one I've opened up at a junkyard has had the same sludge issue up in the valve covers so perhaps I'm being unkind to the PO.
I know I've never seen an engine so sludged up and I've worked on stuff from the 40s that's been in constant use, heavy hauler trucks from the 60s etc.
It was surprising to see that amount of build-up over only 12 years (at the time).
The sludge in mine was also in the oil pump inlet, just a lack of funds prevented the change.
If I could find a low miler 05 Mustang with clean rocker areas I'd likely get it just for the engine.
Cargo Master
Joined: Jul 2003
Posts: 2,730
Likes: 20
From: Four Oaks, NC
The FMX is pretty heavy duty but has no aftermarket support compared to the C4 and C6. The C6 is also heavy duty and more modern and that was the choice Ford made for trucks and heavy cars with big blocks. But I know from first hand experience you can shift the FMX into R at 30mph and it won't tear up the transmission, just make the rear wheels skid backwards until you realize your mistake and put it back in D. lol
FTE Legend
Joined: Sep 2003
Posts: 53,990
Likes: 2,398
From: NY and VA
The FMX is pretty heavy duty but has no aftermarket support compared to the C4 and C6. The C6 is also heavy duty and more modern and that was the choice Ford made for trucks and heavy cars with big blocks. But I know from first hand experience you can shift the FMX into R at 30mph and it won't tear up the transmission, just make the rear wheels skid backwards until you realize your mistake and put it back in D. lol
I did that once with my father's 58 Edsel... when the back up lights came on it sure scared the guy behind me...
Fleet Mechanic
Joined: May 2013
Posts: 1,256
Likes: 4
From: NC
The better halfs is a limited edition and a PO decided that it might be worth more at resale if he kept the original oil... I assume that's what his thinking was.
Sludge, and the failure of the timing chain cassettes causing valve/piston to have a little meeting of minds.
Her Mustang Engine had the balance shaft too, original engine on a manual transmission and apparently that is correct.
Every one I've opened up at a junkyard has had the same sludge issue up in the valve covers so perhaps I'm being unkind to the PO.
I know I've never seen an engine so sludged up and I've worked on stuff from the 40s that's been in constant use, heavy hauler trucks from the 60s etc.
It was surprising to see that amount of build-up over only 12 years (at the time).
The sludge in mine was also in the oil pump inlet, just a lack of funds prevented the change.
If I could find a low miler 05 Mustang with clean rocker areas I'd likely get it just for the engine.
Sludge, and the failure of the timing chain cassettes causing valve/piston to have a little meeting of minds.
Her Mustang Engine had the balance shaft too, original engine on a manual transmission and apparently that is correct.
Every one I've opened up at a junkyard has had the same sludge issue up in the valve covers so perhaps I'm being unkind to the PO.
I know I've never seen an engine so sludged up and I've worked on stuff from the 40s that's been in constant use, heavy hauler trucks from the 60s etc.
It was surprising to see that amount of build-up over only 12 years (at the time).
The sludge in mine was also in the oil pump inlet, just a lack of funds prevented the change.
If I could find a low miler 05 Mustang with clean rocker areas I'd likely get it just for the engine.
Senior User
Joined: Aug 2017
Posts: 156
Likes: 1
From: Farmville, NC
There's no sludge in this one,just light varnish. A tensioner broke and caused valve to piston contact. Oil pump screen was pretty much spotless, I know when we bumped the engine over without the valve cover on it shot engine oil out immediately. If I'd known those had the balance chain too, I'd of gotten one. Idk what it's even for unless it's just internally balanced vs externally balanced. I still wonder if the rings are good. Gonna talk to the machine shop more about the valves when I pick up the head. They all hit, makes it hard for me to see only 2 being bent.
I was lucky, only 3 exhaust and 2 inlet on mine. of course they come in sets of 6...
I read about the fully synthetic on the mustang sites and have been using it since the rebuild.