Well, i was wondering if anyone knew of an online manual for the 3406 engine. And if not could anyone tell me the torque spec for the oil pan bolts.
Prob going to be removing one next week and replacing the gasket.
Thanks
3406 oil pan.
Discussion in 'Trucks [ Eighteen Wheelers ]' started by bowtie_guy, Apr 28, 2010.
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I just give them thema good tighting i mean not with a cheater bar
but good in a criss cross pattern. I don't know torque specs but hope this helps
bowtie_guy Thanks this. -
I just give them thema good tighting i mean not with a cheater bar
but good in a criss cross pattern. I don't know torque specs but hope this helps
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i was thinking about doing the same but figured what the heck, if i find a spec i could go all out and use it.

thx -
Don't forget to check them after running it awhile. Also retighten them after you get some miles on it.
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I bought one of these. It's not as good as the whole manual, but it's helped me a lot, and the price is right.
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There you go.. see attached pdf
Attached Files:
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i torqued mine at 47 lbs all 3/8 bolts torque at this give or take 2 lbs
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The torque on the oil pan bolts is 32ft lbs plus or minus 5 ft lbs. or 47 NM. Take a flat file and clean the dings from the pan, be sure it is not cracked, in the middle, I use as thin a smear of Loctite 5699 silicone you can get on the pan and the gasket. Use a torque wrench and I do it at 35 Ft lbs. Check the torque of the oil pick-up, while the pan is off. Just a thought!
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