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LSiTo5Revo
12-02-2010, 07:28 PM
Any one have torque specs and torque pattern for head studs? (Ej2.51)

MikeyMeyagi
12-02-2010, 07:35 PM
tq in this order:

3 1 6
<- front
5 2 4

tq 1 and 2 to 24 ft lbs
tq all others to 19ft lbs
tighten all bolts 90deg in order
then tighten all bolts another 90deg.

done

LSiTo5Revo
12-02-2010, 07:42 PM
thats all??? just 19 ft lbs?

LSiTo5Revo
12-02-2010, 07:47 PM
i pulled up 51FT lbs on USMB

decke48
12-02-2010, 08:04 PM
thats all??? just 19 ft lbs?
no
1.Tighten all bolts to 22 ft-lbs.
2. Tighten all bolts to 51 ft-lbs.
3 Back off all bolts by 180 degrees.
4.Back off all bolts by 180 degrees again.
5.Tighten bolts A and B to 25 Ft lbs.
6.Tighten bolts c,d,e and f to 11 ft-lbs.
7.Tighten all bolts by 80 to 90 degrees, alphabetically.
8. Repeat step 7.
CAF
EBD
is what i remember

LSiTo5Revo
12-02-2010, 08:07 PM
thats all??? just 19 ft lbs?
no
1.Tighten all bolts to 22 ft-lbs.
2. Tighten all bolts to 51 ft-lbs.
3 Back off all bolts by 180 degrees.
4.Back off all bolts by 180 degrees again.
5.Tighten bolts A and B to 25 Ft lbs.
6.Tighten bolts c,d,e and f to 11 ft-lbs.
7.Tighten all bolts by 80 to 90 degrees, alphabetically.
8. Repeat step 7.
CAF
EBD
is what i remember
that sounds a little better. thank you

ProjectLGT97
12-02-2010, 09:30 PM
Skip to step 5 if you are reusing the original head bolts. The torquing and backing off 180 degrees is only used to stretch new bolts

LSiTo5Revo
12-03-2010, 12:30 AM
Skip to step 5 if you are reusing the original head bolts. The torquing and backing off 180 degrees is only used to stretch new bolts i have new studs. all but one. i bought this motor apart already. the person that had it before me snapped a stud in the block.

ProjectLGT97
12-03-2010, 10:49 AM
Skip to step 5 if you are reusing the original head bolts. The torquing and backing off 180 degrees is only used to stretch new bolts i have new studs. all but one. i bought this motor apart already. the person that had it before me snapped a stud in the block.

Go through the whole torquing pattern to stretch em out

LSiTo5Revo
12-03-2010, 06:58 PM
got it all done hopefully she bangs!!https://sl-i.net/FORUM/images/imported/2010/12/downsize5-1.jpg