torque specs

2003 CHEVROLET ASTRO
105,000 MILES • 6 CYL • 2WD • AUTOMATIC
Avatar
DONNIE3038
  • MEMBER
  • 3 POSTS
what are the torque specs for a 2003 chevy 4.3l main bearing?
Feb 13, 2011 at 5:06 PM
Advertisement
Avatar
MERLIN2021
  • CAR REPAIR CONTRIBUTOR
  • 17,250 POSTS
15 ft lbs on first pass, then add 73 degrees, or 77 ft. lbs
Feb 13, 2011 at 5:11 PM
Avatar
MERLIN2021
  • CAR REPAIR CONTRIBUTOR
  • 17,250 POSTS
77 ft lbs is secondary method!
Feb 13, 2011 at 5:12 PM
Avatar
DONNIE3038
  • MEMBER
  • 3 POSTS
thanks merlin. do you have the specs on the rod bearings too? i used to go to 45 ft lbs on the older ones, but i see the mains have changed so the rods im sure have too.
Feb 13, 2011 at 5:16 PM
Avatar
MERLIN2021
  • CAR REPAIR CONTRIBUTOR
  • 17,250 POSTS
snug, then 20 ft lbs second pass 70 degrees, post your email and I will send the rebuild guide...
Feb 13, 2011 at 5:23 PM
Avatar
DONNIE3038
  • MEMBER
  • 3 POSTS
donaldscott42@yahoo.com
Feb 13, 2011 at 5:27 PM
Avatar
MERLIN2021
  • CAR REPAIR CONTRIBUTOR
  • 17,250 POSTS
Guide on the way!
Feb 13, 2011 at 5:31 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.