How to remove cylinder head on a jeep 4.7 - 2006 Jeep Grand Cherokee

joecoolvette

• 5660 Answers
• Posted on Sep 05, 2009

SOURCE: What is the tension on cylinder head bolts for a

Would like to state the cylinder head Torque Values, Torque Pattern, and Tightening Sequence, plus additional tips.
[I know it's more than you asked for, but after you read the entire answer here, I believe you'll know why I stated it this way]

Torque Pattern:
Top of head starting from Left going Right,
8, 4, 1, 5, and 9
Bottom of head, (Exhaust manifold side), starting from Left going Right,
7, 3, 6, 2, and 10

You're supposed to use old bolts with the head cut off, (Alignment Dowels), in bolt holes 8 and 10. This way you goop the gasket, and install it, then slide the head on. Place the head bolts in, SNUG them down. Remove those alignment dowels. Then put bolts 8 and 10 in place.
After the head of the bolt is cut off, you saw a slot in the top of the bolt. Helps when you remove it. (Have any old bolts that are long enough for this, and have the correct threads?)

=>Coat No.7 bolt with thread sealant.

Tightening Sequence:
Step 1: Tighten all bolts to 22 Foot Pounds. (30Nm) (Using the above Torque Pattern)

Step 2: Tighten all bolts to 45 Foot Pounds. (61NM)

Step 3: Tighten 1 Through 6 <- to 110 Foot Pounds. (149Nm) DO NOT TIGHTEN No.7 bolt yet!

Step 4: Tighten No.7 bolt to 100 Foot Pounds. (136Nm) DO NOT TIGHTEN further! It only tightens to 100 Ft.Lbs. (136Nm)

Step 5: Tighten bolt 8 Through 10 to 110 Foot Pounds. (149Nm)

Step 6: Repeat Steps 3 , 4, and 5

SOURCE: How to remove/install a 4 cylinder jeep Yj

If you need to ask, you have never done one. I suggest that you get a chiltons or haynes manual to guide you through it. tips are: use large bolts without heads to guide the transmission back onto bellhousing so you don't need to hang the unit on the clutch disc and risk bending it. Change the pilot bearing in the back of the crankshaft if it's the least bit worn, be very careful not to damage the crank sensor on the bellhousing, and use a good pilot shaft when aligning the disc inside the clutch cover. spread some white lube on the input shaft and front guide collar on the transmission and make sure the throwout bearing has sufficient grease in the inside groove.
good luck!!!

SOURCE: need cylinder head torque settings on Jeep

me too! Did you get an answer elsewhere?

thnks
Sam