how to properly torque the bolts on a engine? - Maintenance and Repair Forum

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how to properly torque the bolts on a engine?
Thursday, May 26, 2005 11:52 AM
first off, i know i have been posting tons of question and sorry for taking up room on the board, but im assembling a engine that i have to ship to europe tomorrow, and i havn't even started it yet, i have been up for 2 days straight getting stuff ready. so i really could use all the help i can get.

the way i have been torqueing block before is i would semi tighten the bolts, then go around them all until the torque bar clicks, i have been told that it the wrong way to do it. that im suppost to leave them sorta loose then on the first shot get the torque bar to click (from loose to tight onthe first shot).

Also, does anyone know the torque specs for the main bearing covers to block for the crank..... and piston bottoms? i looked on the NJ page, but im not sure if what i found is right, and it didnt even say anything for the pistons as far as i can read.

Re: how to properly torque the bolts on a engine?
Thursday, May 26, 2005 12:46 PM
ok i found out how much the pistons need to be, it says 18 ft pounds +80 degrees

but is this the torque specs for the crankshaft bearings? it seems kinda low
Crankshaft Bearing Cap Bolts ------------15 lb ft + 90°
Re: how to properly torque the bolts on a engine?
Thursday, May 26, 2005 2:27 PM
the 90° will make up for the low torque.

what I do is that I install one bolt at a time.



Gilles
2.3 Ho

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