torque specs

tadmichael22

Registered User
does anyone have torque specs for a 93 SC. I need all specs for intake, heads, SC, ic tubes,etc... if anyone can help me it would be appreciated!!
Tad
 
try a search

try a search on this forum for the torque specs, otherwise find a haynes manual, or chilton whichever, haynes is better i think, it will be in there, but if you have aftermaket studs (arp) torqueing is different on those.
 
Intake
TORQUE - INTAKE BOLT 8-11 FOOT POUNDS (FINAL TORQUE)

TO TORQUE BOLTS & NUTS, START IN CENTER USING CRISSCROSS PATTERN WORKING OUTWARD

Heads
TORQUE - HEAD BOLT FOOT POUNDS (FINAL TORQUE) TORQUE SEQUENCE:
----------------------
FRONT 4 6 9 7 1
OF
VEHICLE 2 8 10 5 3
----------------

STEP 1: APPLY THREAD SEALER TO SHORT BOLTS ONLY
STEP 2: TORQUE TO 37 FT/LBS
STEP 3: TORQUE TO 45 FT/LBS
STEP 4: TORQUE TO 52 FT/LBS
STEP 5: TORQUE TO 59 FT/LBS
STEP 6: COMPLETELY LOOSEN 2 OR 3 TURNS
STEP 7: TORQUE FROM 48 TO 55 FT/LBS
STEP 8: TRUN AN ADDITIONAL 90 TO 110 DEGREES
STEP 9: PROCEED TO THE NEXT BOLT

Exhaust
TORQUE - EXHAUST BOLT 22 FOOT POUNDS (FINAL TORQUE)

NOTE:
TO TORQUE BOLTS & NUTS, START IN CENTER USING
CRISSCROSS PATTERN WORKING OUTWARD


That is all that I have. Not sure on the SC, SC Collar nut, or ic tubes.
 
thanks guys. I just went out and bought a haynes book today. This way I have all specs for future reference also.
Thanks, Tad
 
what does that mean "turn an additional 90 degrees" I understand that you torque all the bolts, then loosen one at a time and then torque it down again, but what about the turn an additiona 90 degrees??
 
I wasn't sure on that either, my headstuds were done in sequence, but after each round of tightening, I would loosen 1/2 turn, and then proceed to the next sequence. I did all of mine at 80ft lbs. if I remember right.
 
I think it means to tighten them all....then loosen each one...this way there is no binding, then tourque to a final pressure of 58ft lb......then do one half turn more than that. Thats what i'm getting out of it...how about your guys?
 
Those specs are for the stock "torque to yield" bolts ONLY! The torque specs are different for the ARP studs and nuts that are commonly used.

The torque to yield bolts are not tightened to a specific torque, but rather to a specific angle. This ensures that they are a specific tightness, since torque readings can be affected by friction. A torque to yield bolt is also tightened past its elastic limits and should never be reused or even retorqued. It will never hold again like it did when originally installed.

More reading on torque to yield bolts:

http://www.robbos.com.au/myweb/Tech_Bolts.htm

http://www.aera.org/Members/EngineTech/edge1296/page2.htm

http://www.autosite.com/garage/encyclop/ency01g.asp
 
so am i correct? Tighten in steps, then loosed one bolt at a time to avoid mis-readings because of friction, then do a final torque to about 58. Then one half turn more? Also get liquid thread sealer for the short bolts?
 
torque angle

They call it torque angle.
A circle has 360 degrees. 90 degrees is a 1/4 turn, 180 degrees is 1/2 turn, etc.

Cheers
MB
 
but i am correct what i am suposed to do...right?

Tighten in steps, then loosed one bolt at a time to avoid mis-readings because of friction, then do a final torque to about 58. Then one half turn more? Also get liquid thread sealer for the short bolts?
 
Torque To Yield Rules

Wanted to bump this old thread cuz I know there are other guys doung HG work right now. It deals with factory/Fel Pro TTY bolts dos + donts. Also, reading the first link made me feel better.... Thanks George!

paul


gldiii said:
Those specs are for the stock "torque to yield" bolts ONLY! The torque specs are different for the ARP studs and nuts that are commonly used.

The torque to yield bolts are not tightened to a specific torque, but rather to a specific angle. This ensures that they are a specific tightness, since torque readings can be affected by friction. A torque to yield bolt is also tightened past its elastic limits and should never be reused or even retorqued. It will never hold again like it did when originally installed.

More reading on torque to yield bolts:

http://www.robbos.com.au/myweb/Tech_Bolts.htm

http://www.aera.org/Members/EngineTech/edge1296/page2.htm

http://www.autosite.com/garage/encyclop/ency01g.asp
 
Back
Top