Oil Pan Bolts Torque Specs

Tryfan · Apr 5, 2015

2001 XJ, I6, AW4
My factory manual in the installation description says the torque specs are:
1/4 - 20 studs 120 in Ibs
5/16 - 18 studs 156 in Ibs
but in the torque table at the end of the chapter they state different values
1/4 - 20 studs 84 in Ibs
5/16 - 18 studs 132 in Ibs
Does anyone know which is correct?
Unfortunately in the middle of this job right now and need to button it up.
Many thanks for any help on this.

mechbullxj · Apr 5, 2015

A quick look in the "green" book gives torque values in ft. lbs. as: 1/4x20 = 7, and 5/16x18 at 11. I use as a rule of thumb, in/lbs. div. 15. If you multiply the in. lbs. by 15 is: 105"lbs. and 165"lbs. Anyway if it helps.

93blackxj · Apr 6, 2015

jeez, really?!?!?! 3/8 ring gear bolts don't even require this much torque. I tightened mine down to good and tight and in a crossing pattern. Haven't had a leak yet. fel-pro product is what i used.

mechbullxj · Apr 6, 2015

93blackxj said:
jeez, really?!?!?! 3/8 ring gear bolts don't even require this much torque. I tightened mine down to good and tight and in a crossing pattern. Haven't had a leak yet. fel-pro product is what i used.

The lowest setting on my torque wrench is 10ft. lbs. That would cinch those oil pan bolts up. Victor Reinz is also a very good gasket. Inch pound to ft. pounds multiply by 15, ft. lbs. to inch lbs. divide by 15.

iluv83vettes · Apr 6, 2015

mechbullxj said:
A quick look in the "green" book gives torque values in ft. lbs. as: 1/4x20 = 7, and 5/16x18 at 11. I use as a rule of thumb, in/lbs. div. 15. If you multiply the in. lbs. by 15 is: 105"lbs. and 165"lbs. Anyway if it helps.

Why do you use 15 and not 12?

Digger87xj · Apr 6, 2015

12 is correct for conversion, not 15.

Digger87xj · Apr 6, 2015

and to the OP; My repair software (Mitchell Pro-Demand) says 84 in-lbs for the 1/4" and 11 ft-lbs (132 in-lbs) for the 5/16"

mechbullxj · Apr 6, 2015

Careful on the timing cover bolts, they'll either strip threads or snap off. That aluminum is soft. The iron block is more forgiving.

RedHeep · Apr 6, 2015

The beginning and end ranges of your torque wrench are horribly inaccurate.

Tryfan · Apr 7, 2015

Thanks Don S appreciate the confirmation on the Torque Specs

iwannadie · Apr 7, 2015

I managed to strip one of the front bolts on mine, I've been afraid to drill / helicoil the block. It never even got to the point of being snug, feels like it stripped when i removed the bolt. :doh:

Oil Pan Bolts Torque Specs

Tryfan

NAXJA Forum User

mechbullxj

NAXJA Forum User

93blackxj

NAXJA Forum User

mechbullxj

NAXJA Forum User

iluv83vettes

NAXJA Forum User

Digger87xj

NAXJA Forum User

Digger87xj

NAXJA Forum User

mechbullxj

NAXJA Forum User

RedHeep

NAXJA #1499

Tryfan

NAXJA Forum User

iwannadie

NAXJA Forum User

Similar threads