440icd head bold toqur

switchhappy · Post by **switchhappy** » Fri Nov 28, 2008 12:41 pm

what is the spec on tighting the head bolts... how much do they get in ft-lb on a toq wrench

shinnery · Post by **shinnery** » Fri Nov 28, 2008 6:24 pm

From the I&T shop manual JD-18 (for the 435D and 440ID [same engine]) "Beginning at the center and working toward ends of the cylinder head, torque hold-down cap screws to 170-180 Ft.-Lbs. in 1/2 turn increments." HTH
Bryce

JD440ICD2006 · Post by **JD440ICD2006** » Fri Nov 28, 2008 6:43 pm

I know of three manuals that have this info. The I & T that is mentioned above, the Detroit Diesel manual for the 53 series, and I think there is a JD version for the same engines (435, 440 ID, 440 ICD).
If you are rebuilding one (sounds like it), you may want one of those books as there are a number of torque values to have handy when putting her back together.

switchhappy · Post by **switchhappy** » Sat Nov 29, 2008 1:08 pm

no im not rebuilding.. i had a o-ring that was dry rotted and letting water into my oil.... i have it all together except the head bolts,,,, thanks for the specks on the bolts

switchhappy · Post by **switchhappy** » Sat Nov 29, 2008 2:09 pm

do i need any kind of thread sealer on the bolts... there shouldent be any water around them... i know to dip them in oil befor tighting... well at least thats how i do race motors...

big dan · Post by **big dan** » Sat Nov 29, 2008 7:02 pm

watch out wen dipping the bolts, once in a thousand on a snowmobile head the bolt went so deep that the extra oil in bottom of hole split the jug in me , so now i dip then set them down on rag, sometimes i learn fast wen it costs me money. lol

big dan

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440icd head bold toqur

440icd head bold toqur

440 ICD torque numbers

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