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International-9.0
Advanced Member
USA
459 Posts |
 Posted - 07/28/2007 : 10:15:55 AM
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Does anybody know what the proper torque or at least have a good guess on the proper torque for oil pan bolts on a 9 liter (5/16 size)? My average findings when searching for that specification for other engines are in the neighborhood of 15 ft*lbs. My Allison transmission also specified that same number. For some reason, my service manual omits this important specification so I figured I'd inquire. International says they can't look up something that old. If nobody knows, does anybody know what the spec is for the DT466? (as this would probably be close enough) Thanks.
Jonathan |
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misterbill
Advanced Member
United States
306 Posts |
Posted - 07/29/2007 : 12:17:08 PM
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If no one else answers--
I replaced the oil pan on my 7.3-it had a cork gasket which can be easily over torqued. Seems to me I just tighted it carefully, watching the gasket. Why would you be worried about torque on an oilpan? |
High School Friend-"Hey! How are you! Well, I guess you can't be doing too well, you're driving a school bus." |
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IBTMech
Top Member
USA
973 Posts |
Posted - 07/29/2007 : 5:35:26 PM
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| I torque all 5/16 oil pan bolts......... Allison or otherwise...... to 12 ft. lbs. Works for me. |
If it doesn't fit, FORCE it.
If it breaks, well, it needed replacing anyway.
Pullin' wrenches for 45 years. |
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International-9.0
Advanced Member
USA
459 Posts |
Posted - 07/29/2007 : 7:38:53 PM
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| Mine isn't cork, it's that grey stuff. That's what the International dealer sent me anyways. I should have clarified, Allison specs 10 to 15 ft*lbs. |
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wagonmaster
Top Member
USA
2298 Posts |
Posted - 07/30/2007 : 09:54:55 AM
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| I'm certainly not bragging here, but I have never used a torque wrench on oil pan bolts. I would snug in down carefully with my hand very near the top of the wrench so as to not over tighten the cap screws. 5/16" grade_ ? can take a fair amount of torque, but the gasket won't like it. Recheck them after running it for a time. |
Joe
Land of the Free, because of the Brave! |
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jeepcjron
Advanced Member
USA
262 Posts |
Posted - 07/31/2007 : 11:01:14 AM
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| manual refers it to general torque spec. if it was a 5/16 as i recall that is 14lbsft |
its like a slinky! useless but fun to watch. |
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bbird66
Top Member
USA
881 Posts |
Posted - 07/31/2007 : 12:07:02 PM
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| Thats funny wagon!..Yeah I do the same thing..."Hmmm thats about right" on to the next..as long as the gasket doesn't puke out the sides too much. |
Were gonna miss you "Brent"..Good luck in "Heidi land"
"I know you miss the Wainwrights Bobby, but they were weak and stupid people...and that's why we have wolves and other large predators" .. The Far Side
"On a two hour delay when will my child be picked up??"
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International-9.0
Advanced Member
USA
459 Posts |
Posted - 07/31/2007 : 3:27:53 PM
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| If you read carefully on the general torque spec, it has a whole list of assumptions. One of these assumptions is that you are torquing metal to metal contact, with no gasket. I'm not worried about stripping threads or breaking off screw heads, but didn't want to overtighten the gasket. |
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rswboe
Top Member
USA
675 Posts |
Posted - 08/02/2007 : 11:02:00 AM
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| Generally, tin pan assemblies (trans pan, oil pan, valve covers) run in the 7 to 14 lbft range. If you really want to get technical, it also make a difference if the bolts are dry or lubricated, and what they are lubricated with (WD-40 has a 0.80% effect on the clamping force / applied torque ratio). I would start with 7 lbft, then tighten until you see the gasket begin to bulge (I use the word "begin" here seriously). |
Live each like it's going to be your last, one day you'll be right! |
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Oil Pan Bolt torque
