Honest Mistake or major F#*k up?
So my engine guy's son torqued the head on my 2001 XJ without sealing up no 11. When I asked him about it he unscrewed the bolt, put the sealant on and slammed it back in. Strangely, it seems totally wrong but possibly no problem at all. The FelPro Severe Duty gasket was on under torque for about 3 days and the vehicle was obviously not run at all.
Should I be worried? Any and all opinions are appreciated...
Should I be worried? Any and all opinions are appreciated...
Not in my wheel house but if this is to be believed:
looking at you head from the driverside...here is the tightening sequence (start at 1 and work your way out)
12 8 4 1 5 9 13
11 7 3 2 6 10 14
step 1...tighten all bolts to 22ft/lbs
step 2....tighten all bolts to 45 ft/lbs
step 3....recheck all bolts at 45ft/lbs
step 4...tighten all bolts except #11 to 110ft/lbs, then tighten #11 to 100ft/lbs...
So 11 falls in the middle for the first 3 steps. Which kinda looks only like 2 steps because step 3 is just to confirm that you did step 2 properly.
But also according to the instructions looks like the last bolt to get torqued is 11.
So I am going to go with what tech said.
looking at you head from the driverside...here is the tightening sequence (start at 1 and work your way out)
12 8 4 1 5 9 13
11 7 3 2 6 10 14
step 1...tighten all bolts to 22ft/lbs
step 2....tighten all bolts to 45 ft/lbs
step 3....recheck all bolts at 45ft/lbs
step 4...tighten all bolts except #11 to 110ft/lbs, then tighten #11 to 100ft/lbs...
So 11 falls in the middle for the first 3 steps. Which kinda looks only like 2 steps because step 3 is just to confirm that you did step 2 properly.
But also according to the instructions looks like the last bolt to get torqued is 11.
So I am going to go with what tech said.
Last edited by Ralph77; Nov 19, 2019 at 03:44 AM.
Not in my wheel house but if this is to be believed:
looking at you head from the driverside...here is the tightening sequence (start at 1 and work your way out)
12 8 4 1 5 9 13
11 7 3 2 6 10 14
step 1...tighten all bolts to 22ft/lbs
step 2....tighten all bolts to 45 ft/lbs
step 3....recheck all bolts at 45ft/lbs
step 4...tighten all bolts except #11 to 110ft/lbs, then tighten #11 to 100ft/lbs...
So 11 falls in the middle for the first 3 steps. Which kinda looks only like 2 steps because step 3 is just to confirm that you did step 2 properly.
But also according to the instructions looks like the last bolt to get torqued is 11.
So I am going to go with what tech said.
looking at you head from the driverside...here is the tightening sequence (start at 1 and work your way out)
12 8 4 1 5 9 13
11 7 3 2 6 10 14
step 1...tighten all bolts to 22ft/lbs
step 2....tighten all bolts to 45 ft/lbs
step 3....recheck all bolts at 45ft/lbs
step 4...tighten all bolts except #11 to 110ft/lbs, then tighten #11 to 100ft/lbs...
So 11 falls in the middle for the first 3 steps. Which kinda looks only like 2 steps because step 3 is just to confirm that you did step 2 properly.
But also according to the instructions looks like the last bolt to get torqued is 11.
So I am going to go with what tech said.
I was a making assumptions and hoping other people, smarter then me, would chime.
One thing did pop in my head. Are these new head bolts or are you reusing the old ones?
Cause I want to say that people say you can reuse them but only once.
-Thanks!
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Joined: Dec 2016
Posts: 3,540
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From: SoCal
Year: 1987
Model: Cherokee (XJ)
Engine: 4.0
Coming from someone who has built over 500 engines, you are worrying too much.... just saying. Drive that jeep, enjoy it and carry on.
If it makes you feel any better, I will do a comparison. On my evo, I am about to put in head studs. What I am going to do is pull one bolt at a time and replace it with a stud. I am not worried one bit about it and its pushing 30 psi of boost and soon to be 500 whp. The head will not be removed to do this work either. As long as the end TQ is correct and your one bolt gets sealed, everything will be fine.
If it makes you feel any better, I will do a comparison. On my evo, I am about to put in head studs. What I am going to do is pull one bolt at a time and replace it with a stud. I am not worried one bit about it and its pushing 30 psi of boost and soon to be 500 whp. The head will not be removed to do this work either. As long as the end TQ is correct and your one bolt gets sealed, everything will be fine.
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