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redz284u,
Maybe something similar to borescope an jet engine, since the glow plugs go directly into the cylinder bore, maybe the mechanic could be looking for something like water/antifreeze in the piston area or something to that effect or possibly look for some hairline cracks in the cylinders.
Last edited by bens170; Oct 29, 2016 at 08:02 PM.
Reason: forgot to add a statement
redz284u,
Maybe something similar to borescope an jet engine, since the glow plugs go directly into the cylinder bore, maybe the mechanic could be looking for something like water/antifreeze in the piston area or something to that effect or possibly look for some hairline cracks in the cylinders.
Update: so finally got a Ford engineer from the tech line to approve a head gasket replacement. The tear down begins tomorrow. Question is, if the head gaskets leak under pressure, it really could be 2 things, the studs are not holding a good clamp, or the hg are actually damaged. Say it's the bolts. Would replacing the hg by itself be sufficient? Wouldn't the hg separate again even with new hg? I talked to the tech and service adviser about ARP studs, and they don't want to install non ford parts. Any thoughts?
redz284u,
From what I understand the stock Ford OEM head bolts/studs are going to do the same thing all over again. It might cost you out of pocket but go with ARP head bolts it will withstand the pressure that is built up better than Ford's idea. Is the shop you are dealing with handle BulletProof Diesel parts? There are a couple of Ford dealers here in Southern California that put in the BPD parts in especially for the 6.0L Powerstroke Diesel engine. I wish you the best outcome on the project.
Last edited by bens170; Nov 7, 2016 at 10:28 PM.
Reason: Add a few more lines.
Update: so finally got a Ford engineer from the tech line to approve a head gasket replacement. The tear down begins tomorrow. Question is, if the head gaskets leak under pressure, it really could be 2 things, the studs are not holding a good clamp, or the hg are actually damaged. Say it's the bolts. Would replacing the hg by itself be sufficient? Wouldn't the hg separate again even with new hg? I talked to the tech and service adviser about ARP studs, and they don't want to install non ford parts. Any thoughts?
for sure arp studs are the clear choice to make. Any thoughts on how to get/convince the tech to install arp instead of ford? Any one here ever had to convince at tech to use superior parts?
redz284u,
Take a look online and possibly do a google search on photos of stretched head bolts on the 6.0L powerstroke and then google search the ARP head bolts for comparison it might open the diesel tech, the shop foreman and service manager eyes as to what works and what does not work on a stock a 6.0L powerstroke diesel engine. If you can print up some of the photos and take them to the dealer. All you can do is try.
redz284u,
Take a look online and possibly do a google search on photos of stretched head bolts on the 6.0L powerstroke and then google search the ARP head bolts for comparison it might open the diesel tech, the shop foreman and service manager eyes as to what works and what does not work on a stock a 6.0L powerstroke diesel engine. If you can print up some of the photos and take them to the dealer. All you can do is try.
Update: hg being replaced. New bolts and studs ordered. Heads are being sent out to machine shop.
They will not install ARP studs. They say can only use Ford parts. Booooo!!!!!
Hopefully have it all back and ready before thanksgiving to head out to glamis.
redz284u, It is unfortunate that the dealer would not have the better head bolts/studs installed, it would save a major headache down the road. I wonder if Ford is smart enough if they found out you had the better head bolts installed at the machine shop while the heads were there, if they could possibly slip in the ARP head bolts/studs and get by with it, without the dealership knowing about it. Just a thought I had. On another thread here on FTE, dealing with the 6.0L back in 2009 or 2011, a Ford dealer did do an ARP head bolt, the title is Re-Replacing Head Gaskets and ARP studs with O-rings.
Last edited by bens170; Nov 14, 2016 at 09:44 PM.
Reason: revise my sentence structure
Ask the Ford tech to measure the head bolts after they're removed, If they're stretched call your Ford rep and plead your case, explaining that it's common for the HB's to stretch and you'd like to have ARP stud installed yourself, even if you have to supply the ARP studs to them. I they agree, they'll also probably tell you that your motor will no longer be under warranty if the HG's blow again.
Ask the Ford tech to measure the head bolts after they're removed, If they're stretched call your Ford rep and plead your case, explaining that it's common for the HB's to stretch and you'd like to have ARP stud installed yourself, even if you have to supply the ARP studs to them. I they agree, they'll also probably tell you that your motor will no longer be under warranty if the HG's blow again.
Correct me if I'm wrong, but aren't the OEM head bolts designed to stretch? That's why they're use once, with the final tightening sequences done by degrees of rotation, not ft/lbs.?
Correct me if I'm wrong, but aren't the OEM head bolts designed to stretch? That's why they're use once, with the final tightening sequences done by degrees of rotation, not ft/lbs.?
Sorry, been busy, Yes head bolts are made to stretch, the TTY bolts are designed to that and when maximum pressure is attained, they are suppose to spring back thus, giving more even pressure across the head and mating surface of the block. It seems to me and this is just my opinion, is that Ford used / bought low quality bolts figuring that they met their minimum standards, but when they were used by real world owners, they failed by not springing back to where they need to be, thus being stretched, kind of like a worn out spring. In this case, it looks like it was cracked heads, so was it faulty heads or was it faulty head bolts causing uneven pressure causing the heads to crack? Either way, he got new heads and sounds like it's running well now.
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