Headgaskets/studs without removing the cab?
Head "bolts" can be installed with the engine in the truck and the cab in place but it is a pita.
Last edited by IB Tim; Nov 5, 2007 at 12:44 PM.
Head "bolts" can be installed with the engine in the truck and the cab in place but it is a pita.
https://www.ford-trucks.com/forums/showthread.php?t=45285[/QUOTE]
Thank you! That is what I was looking for. Any other links like that you know of???
If you are going to go to the trouble to install head studs then do it right or do not do it at all.
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If you are going to go to the trouble to install head studs then do it right or do not do it at all.
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If your studs are truly "no longer than a bolt" then your bolts are too long. Studs should bottom in the hole, bolts must never.
The four 6.0 Technicians I spoke with all highly recommend cab-off because of the excellent access to the engine components.
The four 6.0 Technicians I spoke with all highly recommend cab-off because of the excellent access to the engine components.
"Prior to installing your “new” head studs, it is very important that you have clean surfaces to start. First, clean all the threads in the block with a thread chaser; make sure that you go all the way to the end of threads in the hole. This will also ensure that you get full thread engagement of the stud in the block. Next, clean the threads with brake or carb clean to remove any thread sealer, lube or antifreeze that may be on the threads. Then, clean the threads on the fastener. Use a liberal amount of ARP Thread Sealer, hi temp silicone or loc-tite on the threads to ensure that there will be no air pockets which can cause leaks. Then follow the instructions for installing the fasteners.
You may use loc-tite or any thread locker instead of ARP Assembly Lube. Always ensure threads are clean prior to applying any lube product. When using loc-tite, make sure you assemble the parts before the loc-tite cures. You can use loc-tite instead of ARP Assembly Lube, but do not use them together.
The studs should be installed finger tight. Then, when applying torque to the nut, the stud will stretch only on the vertical axis."
www.arp-bolts.com/FAQ/FAQ.html
It appears you are confusing ARP head stud install with some of the other ARP fastners that "can be" installed using 30W oil provided the alternate torque specs, supplied by ARP, are used when using 30W oil instead of ARP assmebly lube or other product as specified by ARP. Failure to use the proper "lubricant" & torque specifications as provided by ARP will result in improper fastner stretch and premature fastner failure.
"The lubricant used is the main factor in determining friction, and therefore, the torque for a particular installation. Motor oil is a commonly used lubricant because of it’s ready availability. If less friction is desired in order to install the fasteners with less torque, special low friction lubricants are available. With special lubes, the required torque can be reduced as much as 20 to 30 percent. It is important to keep in mind that the reverse is also true. If the torque value has been specified for a particular fastener on the basis of low friction lube, installing the fastener with motor oil will result in insufficient preload; the torque has to be increased to compensate for the extra friction caused by the motor oil.
Friction is an extremely challenging problem because it is so variable and difficult to control. The friction factor changes from one application to the next. That is, the friction is at its highest value when the fastener is first tightened. Each additional time the fastener is torqued and loosened, this value gets smaller. Eventually the friction levels out and becomes constant for all following repetitions. The best way to avoid the pitfalls of friction is by using the stretch method. This way preload is controlled and independent of friction. Therefore, when installing a new bolt where the stretch method cannot be used, the bolt should be tightened and loosened several times before final torque. The number of cycles depends on the lubricant. For ARP recommended lubes, five loosening and tightening cycles is sufficient.
Surface finish is also important. For example, black oxide behaves differently than a polished fastener. It is therefore important to observe the torque recommendations supplied with each fastener."
www.arp-bolts.com/Tech/TechInstall.html
Last edited by blackhat620; Nov 6, 2007 at 10:46 AM.




