strech117

i need the engine torque specs for the 4.0l engine of my 91 cherokee. or atleast where i can find them. what book would have a full set? i am doing an engine rebuild and its useful to have these so it doesnt... blow up.

billfrank85

TORQUE SPECIFICATIONS


Application Ft. Lbs. (N.m)
Camshaft Sprocket Preload Bolt .................. 80 (108)
Connecting Rod Cap Nut ........................... 33 (45)
Converter-To-Flexplate Bolts ......................... (1)
Cylinder Head Bolts (2)
Stage 1 ........................................ 22 (30)
Stage 2 ........................................ 45 (61)
Stage 3 .................................. (2) 110 (149)
Exhaust Manifold Bolts (3)
Bolts No. 1-5 ................................. 24 (33)
Bolts No. 6 & 7 ................................ 17 (23)
Bolts No. 8-11 ................................. 24 (33)
Fan Bolt ......................................... 18 (24)
Flexplate-To-Converter Bolts ..................... 40 (54)
Flexplate-To-Crankshaft Bolts .................... 55 (75)
Flywheel-To-Crankshaft Bolts ......................... (1)
Intake Manifold Bolts (3)
Bolts No. 1-5 ................................. 24 (33)
Bolts No. 6 & 7 ................................ 17 (23)
Bolts No. 8-11 ................................. 24 (33)
Main Bearing Cap Bolts
Stage 1 ....................................... 40 (54)
Stage 2 ....................................... 70 (95)
Stage 3 ...................................... 80 (108)
Oil Pump Retaining Bolts
Long ........................................... 17 (23)
Short .......................................... 10 (14)
Pulley-To-Vibration Damper Bolts ................. 20 (27)
Rocker Arm Bolts ................................. 21 (29)
Starter Bolts .................................... 33 (45)
Vibration Damper Bolt (4) ...................... 80 (108)
Water Pump Bolts ................................. 22 (30)
INCH Lbs. (N.m)
Front Cover Bolts ................................. 62 (7)
Oil Pan Bolts
1/4" X 20 ..................................... 114 (13)
5/16" X 18 .................................... 156 (18)
Oil Pump Cover Bolts .............................. 70 (8)
Valve Cover Bolts ................................. 80 (9)

Does this help?

strech117

very very helpful man thanks!
where did you get those numbers? do you know of any walkthroughs or instructional books on these engines? its my first 242 rebuild and id like to make it as easy on myself as possible.

Erik William Aanestad

- this helps me out very much . Thank you so much Erik

Gene Vetere

I am a little confused, it looks like all of the torque specs are first number foot pounds second number Newton meters. But the oil pan numbers seem high to me for foot pounds… I can’t imagine them being over 100 pounds , in fact, way under can you clarify?

Spencer_P

This is an old thread, a quick google search would've given you your answer.
But if you look closely it says inch lbs.
INCH Lbs. (N.m)
Front Cover Bolts ................................. 62 (7)
Oil Pan Bolts
1/4" X 20 ..................................... 114 (13)
5/16" X 18 .................................... 156 (18)
Oil Pump Cover Bolts .............................. 70 (8)
Valve Cover Bolts ................................. 80 (9)

Slackdaddy

digging up an old thread,
The camshaft sprocket bolt is 80 ft/lb ??

Slackdaddy

The TSM has 50 ft/lb,,, The Larry shepard 4.0 book has 80 ft/lb

I believe the TSM is correct

Pioneer Rick

I am starting a build on an 88 XJ 4.0 by chance do you know if these would be the same torque specs?

cruiser54

Yes

Pioneer Rick

Awesome thank you