Quick question: Rocker Pedestal bolts- retorque yes or no?
#1
Join Date: Mar 2015
Location: Blairsville, Pennsylvania
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Quick question: Rocker Pedestal bolts- retorque yes or no?
I've read about people retorquing their Rocker Pedestal Bolts. I am finishing up an injector replacement and have never torqued them in the 3 yrs I've owned my Excursion.
Should I retorque them while the valve cover is off or leave them alone?
Do they need hot torqued?
How important is it to retorque them if they have not been disturbed?
A diagram:
Thanks!
Should I retorque them while the valve cover is off or leave them alone?
Do they need hot torqued?
How important is it to retorque them if they have not been disturbed?
A diagram:
Thanks!
#5
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#6
My vote is yes, re-torque them. Torque is provided against the pressure from the o-rings and the copper crush washer. O-rings change over time, and the copper has been crushed already and been through countless heat cycles.
Others here will disagree with me on this, but they can chime in with their own opinions.
Others here will disagree with me on this, but they can chime in with their own opinions.
#7
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My vote is yes, re-torque them. Torque is provided against the pressure from the o-rings and the copper crush washer. O-rings change over time, and the copper has been crushed already and been through countless heat cycles.
Others here will disagree with me on this, but they can chime in with their own opinions.
Others here will disagree with me on this, but they can chime in with their own opinions.
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#8
When I was under there last I checked their torque. Was still snug as expected. Here's why I checked them tho; They use the same size socket as the injector hold down bolts, however they are torqued higher at 20 FOOT pounds than the injectors are at 120 INCH pounds, so before I hot torqued my injectors to 130 INCH pounds I retested my INCH pound torque wrench on the rocker bolts to get the feel for where it would click, and to test to make sure the wrench wasn't bound up or something each time before snuggling down each injector. Granted I'm kinda **** about those kind of details
#10
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My in-lb torque wrench is a cheap-o Harbor Freight model, doesn't go up to 240 in-lbs. It's been very repeatable, so not too bad I think.
The 3/8" ft-lb torque wrench is much bigger and harder to get into spots.
That was the holdup last night. I was going to set the torque wrench to 240 in-lbs and check the easiest to reach bolts. But that was a no-go and turned into, "Okay, let's move this stuff and see if she'll start"
The 3/8" ft-lb torque wrench is much bigger and harder to get into spots.
That was the holdup last night. I was going to set the torque wrench to 240 in-lbs and check the easiest to reach bolts. But that was a no-go and turned into, "Okay, let's move this stuff and see if she'll start"
#11
You're there. Put the wrench on them and start to tighten. It will either tighten then click, or just click. I had several that needed to be tightened when I checked mine.
Some of the more **** types recommend loosening the bolt a bit first, then re-torquing so you overcome any stuck bolt issue giving you a false torque reading (comes from a former moderator and full time mechanic as well as others)
Some of the more **** types recommend loosening the bolt a bit first, then re-torquing so you overcome any stuck bolt issue giving you a false torque reading (comes from a former moderator and full time mechanic as well as others)
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