Torqueing heads
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Torqueing heads
This site is awesome, I am going to be reinstalling my heads on the 70 F250 w/390. I have found the sequence and the torques for the heads 70, 80, then 90 ft.bs. Should you snug all the bolts up before going to the first 70lbs or just start out in sequence from bolt 1 too 10 ? I have cleaned the bolts and threads in the block I saw somewhere on another thread to put moly grease on the bolt threads? Or should they be left dry? I want to get this right the first time. Again thanks for everyones help.
- BobbyFord
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Re: Torqueing heads
Light coating of oil on the threads and around the bolt head or bolt hole on the head, not too much though.
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Re: Torqueing heads
Thanks Bobby, what do you think about bringing the torques up should they be snugged before going to the first 70 lbs or does it matter?
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Re: Torqueing heads
Run all the bolts down until they're "snug", then get the torque wrench. Remember, smooth pull on the torque wrench. When asembling, i always make one last pass, after everything has been torqued down, just to make sure.
As a metter of fact, i AM trying to keep up with the Jones'
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- Dragon
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Re: Torqueing heads
Snug them. In fact I snug them to about 20 before I start torquing.
Old Fords Rule
Was a Ford Service Tech
71 F250 with Shell Car 390 NP435 Dana 60 3.73s, PS, PB, 750 EC VS Holley Accel Points Eliminator.
98 Volvo S70 2.4T Auto
71 Service manuals Volumes 1,2,3 and 4 So ask away.
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Was a Ford Service Tech
71 F250 with Shell Car 390 NP435 Dana 60 3.73s, PS, PB, 750 EC VS Holley Accel Points Eliminator.
98 Volvo S70 2.4T Auto
71 Service manuals Volumes 1,2,3 and 4 So ask away.
My Gallery
Spark test
- fomocoguy
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Re: Torqueing heads
I usually snug them to 25-30 ftlbs just to get them halfway to the first mark. It doesn't hurt anything to be cautious!!!
Joe
1971 F100 flareside 8ft
1964 Chrysler New Yorker Town and Country wagon
2006 Dodge Ram 2500 cummins
2005 Ford Ranger
1971 F100 flareside 8ft
1964 Chrysler New Yorker Town and Country wagon
2006 Dodge Ram 2500 cummins
2005 Ford Ranger
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Re: Torqueing heads
Right on sounds good that's kinda what i was thinking before going to town on them.