Torque specs

Tiny
DONNIE3038
  • MEMBER
  • 2003 CHEVROLET ASTRO
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 105,000 MILES
What are the torque specs for a 2003 chevy 4.3l main bearing?
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Sunday, February 13th, 2011 AT 5:06 PM

6 Replies

Tiny
MERLIN2021
  • EXPERT
15 ft lbs on first pass, then add 73 degrees, or 77 ft. Lbs
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Sunday, February 13th, 2011 AT 5:11 PM
Tiny
MERLIN2021
  • EXPERT
77 ft lbs is secondary method!
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Sunday, February 13th, 2011 AT 5:12 PM
Tiny
DONNIE3038
  • MEMBER
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.
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Sunday, February 13th, 2011 AT 5:16 PM
Tiny
MERLIN2021
  • EXPERT
Snug, then 20 ft lbs second pass 70 degrees, post your email and I will send the rebuild guide.
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Sunday, February 13th, 2011 AT 5:23 PM
Tiny
DONNIE3038
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Donaldscott42@yahoo. Com
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Sunday, February 13th, 2011 AT 5:27 PM
Tiny
MERLIN2021
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Guide on the way!
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Sunday, February 13th, 2011 AT 5:31 PM

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