torque spec
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Postmaster
Joined: Jun 2009
Posts: 3,420
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From: Maryland
torque spec
any body know what the torque spec is for the intake and exhaust manifolds are and i need to take my exhaust off so can i reuse the gaskets for the exhaust i just put them on 10000 miles ago thanks
Lead Driver
Joined: Dec 2006
Posts: 6,496
Likes: 94
From: So. Jersey
TORQUE SPECIFICATIONS TORQUE SPECIFICATIONS
Application Ft. Lbs. (N.m)
Camshaft Gear Allen Screw 15 (20)
Connecting Rod Nut Step 1 38 (51) Step 2 51 (69)
Cylinder Head Bolt (*1) Step 1 65 (88) Step 2 90 (122)
Step 3 100 (135) Step 4 100 (135)
Exhaust Manifold Bolt(*2) 35 (47)
Fan Clutch-to-Water Pump Nut 45 (61)
Flywheel-to-Crankshaft(*3) 47 (64)
Glow Plug 12 (16)
Injector Nozzle 35 (47)
Injection Pump Gear Bolt 25 (34)
Injection Pump Gear Cover Bolt(*3) 14 (19)
Intake Manifold Bolt(*4) 24 (33)
Main Bearing Cap Bolt Step 1 75 (101) Step 2 95 (129)
Oil Cooler-to-Cylinder Block Bolt Front Header 24 (33)
Rear (Filter) Header 14 (19)
Oil Pump Pick-Up Tube Bracket-to-Main Bearing Cap Nut 14 (19)
Oil Pump Pick-Up Tube-to-Oil Pump Bolt 14 (19)
Rocker Arm Bolt 20 (27)
Vibration Damper Bolt 90 (122)
Water Outlet (Thermostat Housing) 20 (27)
Water Pump(*3) 14 (19)
INCH Lbs. (N.m)
Rocker Arm Cover Bolt 72 (8)
NOTES:
(*1)At steps 1 and 2, tighten bolts in numerical sequence beginning with bolt No. 1. At steps 3 and 4, tighten bolts in line sequence beginning with bolt No. 15. See Fig. 3 .
(*2)Tighten to specification in numerical sequence beginning with bolt No. 1, then tighten again to same specification in line sequence beginning with bolt No. 4. See Fig. 2 .
(*3)Coat threads with thread sealing compound.
(*4)Tighten to specification in numerical sequence beginning with bolt No. 1, then tighten again to same specification in line sequence beginning with bolt No. 9. See Fig. 1 .
This may help
Application Ft. Lbs. (N.m)
Camshaft Gear Allen Screw 15 (20)
Connecting Rod Nut Step 1 38 (51) Step 2 51 (69)
Cylinder Head Bolt (*1) Step 1 65 (88) Step 2 90 (122)
Step 3 100 (135) Step 4 100 (135)
Exhaust Manifold Bolt(*2) 35 (47)
Fan Clutch-to-Water Pump Nut 45 (61)
Flywheel-to-Crankshaft(*3) 47 (64)
Glow Plug 12 (16)
Injector Nozzle 35 (47)
Injection Pump Gear Bolt 25 (34)
Injection Pump Gear Cover Bolt(*3) 14 (19)
Intake Manifold Bolt(*4) 24 (33)
Main Bearing Cap Bolt Step 1 75 (101) Step 2 95 (129)
Oil Cooler-to-Cylinder Block Bolt Front Header 24 (33)
Rear (Filter) Header 14 (19)
Oil Pump Pick-Up Tube Bracket-to-Main Bearing Cap Nut 14 (19)
Oil Pump Pick-Up Tube-to-Oil Pump Bolt 14 (19)
Rocker Arm Bolt 20 (27)
Vibration Damper Bolt 90 (122)
Water Outlet (Thermostat Housing) 20 (27)
Water Pump(*3) 14 (19)
INCH Lbs. (N.m)
Rocker Arm Cover Bolt 72 (8)
NOTES:
(*1)At steps 1 and 2, tighten bolts in numerical sequence beginning with bolt No. 1. At steps 3 and 4, tighten bolts in line sequence beginning with bolt No. 15. See Fig. 3 .
(*2)Tighten to specification in numerical sequence beginning with bolt No. 1, then tighten again to same specification in line sequence beginning with bolt No. 4. See Fig. 2 .
(*3)Coat threads with thread sealing compound.
(*4)Tighten to specification in numerical sequence beginning with bolt No. 1, then tighten again to same specification in line sequence beginning with bolt No. 9. See Fig. 1 .
This may help
Thread Starter
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Postmaster
Joined: Jun 2009
Posts: 3,420
Likes: 1
From: Maryland
thats really odd i thought it would be higher
Lead Driver
Joined: Dec 2006
Posts: 6,496
Likes: 94
From: So. Jersey
These are stock specs. Since I'm turbo charged, after I met the torque value I went an additional 1/8 or 45* of a turn on the intake manifold bolts.
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Postmaster
Joined: Jun 2009
Posts: 3,420
Likes: 1
From: Maryland
i am turboing the truck tmw i am also building my own gp harness cause the old one is a crappy design i was thinking i would go 29 ft lbs with the intake i dont trust degrees
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Lead Driver
Joined: Dec 2006
Posts: 6,496
Likes: 94
From: So. Jersey
Don't trust degrees? Many manufacturers use that method for headbolts and such. Alot of inconsistencies any other way really. With those inconsistancies your 5 ftlb increase isn't increasing much hold. Just my experience, it's only an intake with 3/8" bolts so I'm sure it will be fine.
Postmaster
Joined: Apr 2008
Posts: 4,802
Likes: 1
Oh, so they are actually 3/8" bolts, and not 5/16"? Then the low torque spec is even more odd then... Oh well, I'm sure he IHC people knew what they're doing on those. And yes the degree method works good, this is just how you set the preload on lifter with the rocker arms - well, never done it on an IDI, but at least on gassers this is how it's done, tighten to zero-lash then give it a fraction of a turn more and it's done.
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