What Have I Done? - Ford Powerstroke Diesel Forum
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post #1 of 14 Old 07-20-2019, 05:19 PM Thread Starter
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What Have I Done?

Well it finally happened. I had a need for a heavier truck then my current OBS F-350. I hated to do it but I had to let my 7.3 go and now I have a 6.0 F-550. I'm excited and I love the new ish truck. It's an 05 with 270K on the truck and 160K on the engine which was a crate engine installed by Ford under a previous owners extended warranty. I love it but I'm reading all of the horror stories about the 6.0 and I'm starting to chew my finger nails. Mainly bad lifters killing the whole engine. This truck has already had ARP studs, a new oil cooler, EGR cooler, New injectors, Fuel regulator blue spring kit, and CTS all done in the last 20K miles with full receipts to prove it.

So my first question in the new not me forum. The heads were machined correctly and OEM gaskets were used when the studs were done. My concern is that they did not put in the shorter 6.4L pushrods. Is this something I should get out and get done ASAP before anything bad happens? Or is it likely fine? The truck runs great and idles super smooth with no vibration at all. Well, at least compared to my old 7.3.

Sorry for the long winded post. I look forward to learning from you guys out here.
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post #2 of 14 Old 07-21-2019, 05:19 AM
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IMO, no. If you find yourself taking the valve cover or heads off and it bugs you, go ahead. There's so much that "could" go wrong with these, you gotta draw the line somewhere. I feel like the base engine is very stout, including lifters. Yes there's posts about lifters going bad and ruining the LPOP, but changing those is very time consuming and expensive, so much so IMO its worth the risk.

I have an oil leak I suspect is either the oil pan, bedplate, rear main seal, or front cover, but probably at least two of those. To fix the bedplate, the engine is coming out, and if the engine comes out, that's when I plan on getting that drip a day oil leak fixed along with lifters, and maybe a couple other things. I'm at a 190K and the engine may never come out and I think I'll be fine lifter wise.

Here's a thread of a guy who changed the pushrods, just for reference: https://www.powerstroke.org/forum/ge...e-pushrod.html

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post #3 of 14 Old 07-21-2019, 07:17 AM
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So we have a few 550 my personal one is a 04 550 the best thing you can buy is a edge insight to watch everything because they are geared different then a 250 or 350. Itís going to run hotter because your hold higher rpms so donít freak out when your oil gets hot it will go back down when you slow down. If your ocd like me I put the bpd fan clutch and water pump on it helps a lot. I just put a new motor in it due to a lifter going bad at 186k but I didnít get the truck till 115k so from the service records I have on the truck it tells me that it was due to poor maintenance before I got it they would let the oil go 15k without changing it so that being said keep up with your oil. A 550 works a lot harder than a 250


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post #4 of 14 Old 07-21-2019, 08:25 AM Thread Starter
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Thanks guys. I'm just going through the new truck paranoia. I have pretty good service records on my truck. They PO spend a little over 16K of services over the last 8 years and 25K miles. In that time it has had head studs and all new injectors to point out a couple of things. I am planning on getting an SCT and I will keep in mint the temps you mentioned. I have 4:88's in my truck so it makes sense. I have never had a truck with that low of gears. This 550 will have an easy life from now on. I will not work it very hard by 550 standards. I bought it for payload to carry my truck camper. Our current camper weighs 4600 and the new one we are looking at goes 6K pounds so that will be the life for this truck from now on. A relative picnic for a 550 and I'm super OCD with maintenance, repairs, and mods.
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post #5 of 14 Old 07-21-2019, 09:01 AM
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I still have to check recession numbers on the pushrods in the lifters, but having the original 6.0 pushrods should not be a concern. Not only my opinion but Geoff Bardal owner of Colt Cams.
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post #6 of 14 Old 07-22-2019, 09:30 AM
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Originally Posted by ChallengerRV View Post
Thanks guys. I'm just going through the new truck paranoia. I have pretty good service records on my truck. They PO spend a little over 16K of services over the last 8 years and 25K miles. In that time it has had head studs and all new injectors to point out a couple of things. I am planning on getting an SCT and I will keep in mint the temps you mentioned. I have 4:88's in my truck so it makes sense. I have never had a truck with that low of gears. This 550 will have an easy life from now on. I will not work it very hard by 550 standards. I bought it for payload to carry my truck camper. Our current camper weighs 4600 and the new one we are looking at goes 6K pounds so that will be the life for this truck from now on. A relative picnic for a 550 and I'm super OCD with maintenance, repairs, and mods.
That a very light camper. At least you can have peace of mind you are not pushing the truck very hard, unless you're launching it.
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post #7 of 14 Old 07-22-2019, 09:48 AM Thread Starter
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It is light for a trailer but this camper sits on the back of the truck so it is all pay load not towing weight. So that makes it pretty heavy. But I have plenty of room. I weighed my truck yesterday and it came in at 9800lb so that leaves me with about 8100lb of payload left. So I can make good on my promise to my wife for allowing me to get the big truck. I told her that this truck would be like the Post Office. "If it fits, It ships" because she is notorious for carrying too much stuff and I was always griping at her for overloading us.
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post #8 of 14 Old 07-22-2019, 10:42 AM
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Out of curiosity, how much can your 550 carry? I have a SRW 250, and its rated at GCVWR 23500. No matter what when towing, the ride has got to be more comfortable.

2005 F250, 189,000 Miles
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Edge CTS w/ EGT probe and Fuel Pressure Sensor.
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post #9 of 14 Old 07-22-2019, 10:45 AM
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I don't know if it's a linear progression but my 2004 F350 DRW is much more comfortable than my buddy's 2016 F250 SRW. The only explanation I have is either my springs are tired now and not as stiff or the fact that the 350 has helper springs so you have a more precise number of spring leaves for each situation (empty/loaded) when compared to a single set of leaves on the 250 (feels to harsh empty and too soft loaded).
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post #10 of 14 Old 07-22-2019, 12:53 PM Thread Starter
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Originally Posted by ChrisSki View Post
Out of curiosity, how much can your 550 carry? I have a SRW 250, and its rated at GCVWR 23500. No matter what when towing, the ride has got to be more comfortable.
You quoted GCVWR that is the gross combined weight and it supposed to be the max combined weight of truck and trailer together. What I'm using is the GVWR which is the max weight truck can be including all cargo. So in my case the F-550 has a GVWR of 17950 then subtract the 9800 means I have 8150lb of payload to carry cargo and passengers. The GCWR for the 550 is 28000lb. So in your GCVWR you have 23500lb so say the truck weighs 8000lb then you can tow 15500lb total including cargo and fuel. Clear as mud isn't it
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