96z71sas
OBS Enthusiast
Does anybody know ware I can find the torque spec and pattern for the upper intake on a 5.7 vortec I have to replace fuel pressure regulator and can’t find this in Hayens thank you for any help
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did you ever pull an upper intake on one of these doesn’t seem to bad I guessInstallation procedure calls for 44 in-lbs on the first pass, then 88 in-lbs on the second pass.
Also included the lower intake pattern just for fun which get's torqued to 72 in-lbs first pass, and 10 ft-lbs on the second
Yeah. I pulled the lower intake with the engine still in the truck once. I have mad respect for guys that do cam swaps without removing their engines lol. Things get a little tight at the back of the engine but it's not that bad overall. Upper intake coming off is really easy imo.Did
did you ever pull an upper intake on one of these doesn’t seem to bad I guess
Ya I pulled it today what do you know about the fuel pressure key on ignition off I’m at 45 psi and it drops to 40 psi it’s gotta be the fuel pump but it starts and runs fineYeah. I pulled the lower intake with the engine still in the truck once. I have mad respect for guys that do cam swaps without removing their engines lol. Things get a little tight at the back of the engine but it's not that bad overall. Upper intake coming off is really easy imo.
My upper intake only has 12 bolts your diagram is showing 13Installation procedure calls for 44 in-lbs on the first pass, then 88 in-lbs on the second pass.
Also included the lower intake pattern just for fun which get's torqued to 72 in-lbs first pass, and 10 ft-lbs on the second