Torque Spec

[knightr]

 

Does anyone out there know what the torque spec is on the oil pan drain plug

on a Chevy Silverado GMT900 4.8L LY2 engine. Can't find it in the owners manual,

unless I missed it.

[07Graystone]

Just tighten it until it strips, then back it off 1/2 turn. J/K That was my Dad's answer to any such question. Sorry for the intrusion.

[D&SYukonDenali]

 

Does anyone out there know what the torque spec is on the oil pan drain plug

on a Chevy Silverado GMT900 4.8L LY2 engine. Can't find it in the owners manual,

unless I missed it.

 

 

Not sure on the 4.8L, on the 6.2 Lt is 18 ft-lbs

[hubbycap]

Never really thought about this and subsequently never drug a torque wrench under a vehicle during an oil change. I've never stripped an oil drain plug. Is kind-of-tight quantifiable?

[2000DV4.8]

I just go to snug, then another quarter turn or so...

[jrrod2004]

That is interesting, here is some info:

 

 

 

Service Information

2007 Chevrolet Silverado - 2WD | Sierra, Silverado (VIN C/K) Service Manual | Document ID: 1664083 Fastener Tightening Specifications Application

 

Specification

 

Metric

 

English

 

Accessory Drive Belt Idler Pulley Bolt

 

50 N·m

 

37 lb ft

 

Accessory Drive Belt Tensioner Bolts

 

50 N·m

 

37 lb ft

 

Active Fuel Management Oil Pressure Relief Valve

 

27 N·m

 

20 lb ft

 

Air Conditioning Drive Belt Tensioner Bolts

 

50 N·m

 

37 lb ft

 

Automatic Transmission Flex Plate Bolts - First Pass

 

20 N·m

 

15 lb ft

 

Automatic Transmission Flex Plate Bolts - Second Pass

 

50 N·m

 

37 lb ft

 

Automatic Transmission Flex Plate Bolts - Final Pass

 

100 N·m

 

74 lb ft

 

Battery Cable Channel Bolt

 

12 N·m

 

106 lb in

 

Camshaft Position (CMP) Actuator Magnet Bolts

 

12 N·m

 

106 lb in

 

Camshaft Position (CMP) Actuator Solenoid Valve - First Pass

 

65 N·m

 

48 lb ft

 

Camshaft Position (CMP) Actuator Solenoid Valve - Final Pass

 

90 degrees

 

Camshaft Position (CMP) Sensor Bolt

 

12 N·m

 

106 lb in

 

Camshaft Position (CMP) Sensor Wire Harness Bolt

 

12 N·m

 

106 lb ft

 

Camshaft Retainer Bolts - Hex Head Bolts

 

25 N·m

 

18 lb ft

 

Camshaft Retainer Bolts - TORX Head Bolts

 

15 N·m

 

11 lb ft

 

Camshaft Sprocket Bolt - First Pass

 

75 N·m

 

55 lb ft

 

Camshaft Sprocket Bolt - Final Pass

 

50 degrees

 

Connecting Rod Bolts - First Pass

 

20 N·m

 

15 lb ft

 

Connecting Rod Bolts - Final Pass

 

85 degrees

 

Coolant Air Bleed Pipe and Cover Bolts

 

12 N·m

 

106 lb in

 

Coolant Temperature Sensor

 

20 N·m

 

15 lb ft

 

Crankshaft Balancer Bolt - Installation Pass - to Ensure the Balancer is Completely Installed

 

330 N·m

 

240 lb ft

 

Crankshaft Balancer Bolt - First Pass - Install a NEW Bolt After the Installation Pass and Tighten as Described in the First and Final Passes

 

50 N·m

 

37 lb ft

 

Crankshaft Balancer Bolt - Final Pass

 

140 degrees

 

Crankshaft Bearing Cap M8 Bolts

 

25 N·m

 

18 lb ft

 

Crankshaft Bearing Cap M10 Bolts - First Pass in Sequence

 

20 N·m

 

15 lb ft

 

Crankshaft Bearing Cap M10 Bolts - Final Pass in Sequence

 

80 degrees

 

Crankshaft Bearing Cap M10 Studs - First Pass in Sequence

 

20 N·m

 

15 lb ft

 

Crankshaft Bearing Cap M10 Studs - Final Pass in Sequence

 

51 degrees

 

Crankshaft Oil Deflector Nuts

 

25 N·m

 

18 lb ft

 

Crankshaft Position (CKP) Sensor Bolt

 

25 N·m

 

18 lb ft

 

Crankshaft Rear Oil Seal Housing Bolts

 

30 N·m

 

22 lb ft

 

Crossbar Bolts/Nuts - 1500 Series

 

100 N·m

 

74 lb ft

 

Crossbar Bolts/Nuts - 2500 Series

 

120 N·m

 

89 lb ft

 

Cylinder Head M8 Bolts - in Sequence

 

30 N·m

 

22 lb ft

 

Cylinder Head M11 Bolts - First Pass in Sequence

 

30 N·m

 

22 lb ft

 

Cylinder Head M11 Bolts - Second Pass in Sequence

 

90 degrees

 

Cylinder Head M11 Bolts - Final Pass in Sequence

 

70 degrees

 

Cylinder Head Plug

 

20 N·m

 

15 lb ft

 

Differential Carrier-to-Crossbar Nuts

 

100 N·m

 

74 lb ft

 

Engine Block Coolant Drain Hole Plug

 

60 N·m

 

44 lb ft

 

Engine Block Coolant Heater

 

50 N·m

 

37 lb ft

 

Engine Block Oil Gallery Plugs

 

60 N·m

 

44 lb ft

 

Engine Harness Ground Strap Bolt/Stud

 

16 N·m

 

12 lb ft

 

Engine Harness-to-Generator Bracket Bolt

 

9 N·m

 

80 lb in

 

Engine Harness Retainer-to-Intake Manifold Nut

 

5 N·m

 

44 lb in

 

Engine Mount Bracket Through Bolt

 

100 N·m

 

74 lb ft

 

Engine Mount-to-Engine Block Bolts

 

50 N·m

 

37 lb ft

 

Engine Mount-to-Frame Bolts

 

65 N·m

 

48 lb ft

 

Engine Shield-to-Crossbar Bolts

 

20 N·m

 

15 lb ft

 

Evaporative (EVAP) Emission Pipe Bracket Nut

 

20 N·m

 

15 lb ft

 

Exhaust Manifold Bolts - First Pass

 

15 N·m

 

11 lb ft

 

Exhaust Manifold Bolts - Final Pass

 

20 N·m

 

15 lb ft

 

Exhaust Manifold Heat Shield Bolts

 

9 N·m

 

80 lb in

 

Exhaust Manifold Studs

 

20 N·m

 

15 lb ft

 

Flex Plate-to-Torque Converter Bolts - 4L60-E/4L70-E/6L80 Transmission

 

63 N·m

 

47 lb ft

 

Flex Plate-to-Torque Converter Bolts - 4L80-E Transmission

 

60 N·m

 

44 lb ft

 

Front Cover Bolts

 

25 N·m

 

18 lb ft

 

Front Drive Axle Bracket Bolts

 

90 N·m

 

67 lb ft

 

Fuel Injection Fuel Rail Bolts

 

10 N·m

 

89 lb in

 

Fuel Injection Fuel Rail Crossover Tube Bolts

 

3.8 N·m

 

34 lb in

 

Fuel Rail Stop Bracket Bolt

 

50 N·m

 

37 lb ft

 

Generator Bracket Bolts

 

50 N·m

 

37 lb ft

 

Heater Hose Bracket Nut

 

9 N·m

 

80 lb in

 

Ignition Coil Bracket-to-Valve Rocker Arm Cover Studs

 

12 N·m

 

106 lb in

 

Ignition Coil-to-Bracket Bolts

 

10 N·m

 

89 lb in

 

Intake Manifold Bolts - First Pass in Sequence

 

5 N·m

 

44 lb in

 

Intake Manifold Bolts - Final Pass in Sequence

 

10 N·m

 

89 lb in

 

Intake Manifold Sight Shield Retainer Bolts

 

5 N·m

 

44 lb in

 

J 41798 M8 Bolt

 

25 N·m

 

18 lb ft

 

J 41798 M10 Bolts

 

50 N·m

 

37 lb ft

 

Knock Sensor Bolts

 

25 N·m

 

18 lb ft

 

Negative Battery Cable Stud

 

25 N·m

 

18 lb ft

 

Oil Filter

 

30 N·m

 

22 lb ft

 

Oil Filter Fitting

 

55 N·m

 

40 lb ft

 

Oil Level Indicator Switch

 

20 N·m

 

15 lb ft

 

Oil Level Indicator Tube Bolt

 

25 N·m

 

18 lb ft

 

Oil Pan Baffle Bolts

 

9 N·m

 

80 lb in

 

Oil Pan Closeout Cover Bolt - Left Side

 

9 N·m

 

80 lb in

 

Oil Pan Closeout Cover Bolt - Right Side

 

9 N·m

 

80 lb in

 

Oil Pan Cover Bolts

 

9 N·m

 

80 lb in

 

Oil Pan Drain Plug

 

25 N·m

 

18 lb ft

 

Oil Pan M6 Bolts - Oil Pan-to-Rear Housing

 

12 N·m

 

106 lb in

 

Oil Pan M8 Bolts - Oil Pan-to-Engine Block and Oil Pan-to-Front Cover

 

25 N·m

 

18 lb ft

 

Oil Pan Skid Plate Bolts

 

28 N·m

 

21 lb ft

 

Oil Pressure Sensor

 

35 N·m

 

26 lb ft

 

Oil Pump Cover Bolts

 

12 N·m

 

106 lb in

 

Oil Pump Relief Valve Plug

 

12 N·m

 

106 lb in

 

Oil Pump Screen Nuts

 

25 N·m

 

18 lb ft

 

Oil Pump Screen-to-Oil Pump Bolts

 

12 N·m

 

106 lb in

 

Oil Pump-to-Engine Block Bolts

 

25 N·m

 

18 lb ft

 

Power Steering Pump-to-Engine Block Bolts

 

50 N·m

 

37 lb ft

 

Spark Plugs

 

15 N·m

 

11 lb ft

 

Throttle Body Bolts

 

10 N·m

 

89 lb in

 

Throttle Body Nuts

 

10 N·m

 

89 lb in

 

Throttle Body Studs

 

6 N·m

 

53 lb in

 

Timing Chain Tensioner Bolts

 

25 N·m

 

18 lb ft

 

Transfer Case Vent Hose Bracket Nut

 

20 N·m

 

15 lb ft

 

Transmission Housing-to-Engine Bolts/Studs

 

50 N·m

 

37 lb ft

 

Transmission Oil Cooler Line Clip Bolt

 

9 N·m

 

80 lb in

 

Transmission Oil Level Indicator Tube Nut

 

18 N·m

 

13 lb ft

 

Valley Cover Bolts

 

25 N·m

 

18 lb ft

 

Valve Lifter Guide Bolts

 

12 N·m

 

106 lb in

 

Valve Lifter Oil Manifold Bolts

 

25 N·m

 

18 lb ft

 

Valve Rocker Arm Bolts

 

30 N·m

 

22 lb ft

 

Valve Rocker Arm Cover Bolts

 

12 N·m

 

106 lb in

 

Water Inlet Housing Bolts

 

15 N·m

 

11 lb ft

 

Water Pump Bolts - First Pass

 

15 N·m

 

11 lb ft

 

Water Pump Bolts - Final Pass

 

30 N·m

 

22 lb ft

 

© 2008 General Motors Corporation. All rights reserved.

[jrrod2004]

I didnt know that there were specs until I looked it up.....

[knightr]

Never really thought about this and subsequently never drug a torque wrench under a vehicle during an oil change. I've never stripped an oil drain plug. Is kind-of-tight quantifiable?

 

I never really thought about it either after decades of working on my vehicles, but I have a tendency to tighten everything until my wrench breaks or I pull a muscle and there is nothing worse than taking a simple, routine job and turning it into a time consuming nightmare with a stripped bolt. The new oil pans are made of aluminum, with a steel bolt and those aluminum threads will strip a lot quicker than the old iron pans. Maybe I am getting lazy in my old age or possibly wiser but I find myself using a torque wrench for a lot more jobs where the wrong outcome could be disastrous and/or expensive.

[knightr]

I didnt know that there were specs until I looked it up.....

 

 

Thanks for the detailed info Mike. I may only use a fraction of them, but at least I know

what has a torque spec. Sure is a lot of them, huh?

[WFO]

Good info.

Thanks!

[jrrod2004]

stupid question, how can I make this into a pdf (it is originally a table in DealerWorld) so I can post it on the Wiki???

[knightr]

stupid question, how can I make this into a pdf (it is originally a table in DealerWorld) so I can post it on the Wiki???

 

 

I highlighted all of the information and right clicked to copy it, then opened up an Excel spreadsheet

and pasted it in Excel. Once you get it there you can organize, modify or do whatever you want with

it. Then save it as a filename of your choice, in the location of your choice and your done.

You can also save it in Word, wordpad or any other program of your choice. I used Excel because I find it easier

to manipilate & modify.

[pm26]

Ok, I have to chime in on this one. Even if there is a torque spec for an oil pan drain plug, that torque spec will be most likely for dry threads, and that will not be the case here. Oiled threads will decrease the friction in threads to the point where the preload on the bolt will be practically twice as high as if the threads were dry. About 90% of torque applied to a bolt goes toward overcoming the friction in the threads, and only 10% toward the bolt elongation (in the elastic range).

 

Translation: do not torque oil pan drain plugs. Only tighten snug with a short ratchet/socket. This is especially important with aluminum oil pans. I tell you, there is a lot of unhappy guys on motorcycle forums who have stripped the threads in their expensive aluminum oil pans by trying to torque the drain plug to "spec".

 

There is a rubber lined washer under the drain plug. You need to only compress that rubber on the washer sufficiently to get a good seal and tighten the plug enough so it will not back out due to vibration. If an aluminum sealing washer is used, tighten the plug just enough to cut a small groove int he aluminum washer, which will create a positive seal. Do not reuse grooved aluminum or cooper washers, as they may leak if you do not line up the groove right.

 

I have done hundreds of oil changes on all kinds of vehicles and never stripped the plug threads or had a leak using my method. And I always replace aluminum sealing washers with new ones.

[jrrod2004]

now here is a stupid question, does the GMT800 series trucks have the aluminum oil pan or is it steel?

[alaska511]

now here is a stupid question, does the GMT800 series trucks have the aluminum oil pan or is it steel?

 

 

aluminum