Question about 1999 Jeep Grand Cherokee
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]
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.
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
Posted on Sep 05, 2009
Coat threads of left hand front bolt with sealant: 1st - step; - 22 ft./lbs. 2nd - step; - 45 ft./lbs. 3rd - step, all bolts except L.H. front bolt; - 110 ft./lbs. 4th - step, L.H. front bolt; - 100 ft./lbs.
Posted on Sep 05, 2009
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Posted on Jan 02, 2017
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