- Location
- Muskogee, OK
Hi everyone,:helpme:
I am getting ready to reinstall the cylinder head onto my 87 MJ 2.5l I4. I have some conflicting information on how to torque the head bolts so I am hoping someone can clear this up for me. My haynes manual, which I understand is known to be wrong from time to time, says the following:
Torque bolts in sequence and use the following steps:
step 1: 25ft-lb
step 2: 50ft-lb
step 3: 85ft-lb except bolt 8 to 75ft-lb only.
I have an '88 FSM and it says to tighten all the bolts in sequence to 110ft-lb except bolt 8 to 100ft-lb. It doesn't mention multiple steps at all and the torque specs are obviously different than the haynes manual.
Also, the '88 FSM says to use "thread sealant" on bolt 8 and the haynes says to use teflon tape. I'm not sure what specific sealant the FSM means and I'm not going to use teflon tape. I'm leaning towards hi temp RTV.
Any help is appreciated. Thanks experts.
I am getting ready to reinstall the cylinder head onto my 87 MJ 2.5l I4. I have some conflicting information on how to torque the head bolts so I am hoping someone can clear this up for me. My haynes manual, which I understand is known to be wrong from time to time, says the following:
Torque bolts in sequence and use the following steps:
step 1: 25ft-lb
step 2: 50ft-lb
step 3: 85ft-lb except bolt 8 to 75ft-lb only.
I have an '88 FSM and it says to tighten all the bolts in sequence to 110ft-lb except bolt 8 to 100ft-lb. It doesn't mention multiple steps at all and the torque specs are obviously different than the haynes manual.
Also, the '88 FSM says to use "thread sealant" on bolt 8 and the haynes says to use teflon tape. I'm not sure what specific sealant the FSM means and I'm not going to use teflon tape. I'm leaning towards hi temp RTV.
Any help is appreciated. Thanks experts.