Need torque specs for main bearings and piston rods

Tiny
GININDZA
  • MEMBER
  • 2007 CHEVROLET SPARK
  • 1.0L
  • 4 CYL
  • 2WD
  • MANUAL
  • 232,112 MILES
Need to know the NM
Thursday, November 6th, 2025 AT 10:51 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,137 POSTS
Sure, here are the torque specs for the main bearing and piston rods.

Main Bearing Cap Bolts

Step 1: 25 Nm

Step 2: Turn an additional 60° (angle torque)
(Always tighten in sequence from center outwards)

Connecting Rod (Piston Rod) Bolts

Step 1: 20 Nm

Step 2: Turn an additional 70°

Let us know if you need anything else.
Was this
answer
helpful?
Yes
No
-1
Sunday, November 9th, 2025 AT 10:05 AM

Please login or register to post a reply.