Need spec for main bearing and connecting rods on 07 Frontier 4.0, V6.

tightening and diagram here

https://honda-tech.com/forums/honda-accord-1990-2002-2/torque-spec-main-bearing-metal-rod-3157043/

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Main Bearing Torque 67-74 ft lbs
Rod Bearings Torque 28 - 33 ft lbs

Torque Specs Database

Type: Dim: Length: Head: Nut Grade: 20 Ft-Lbs 240 In-Lbs 27.12 N-m Connects: Connecting Rod To Engine Block Years: All Vote Record: Vote Note: Vortec - Rod Cap Nuts - 2 Steps: 20 FtLbs; +70degs

http://ww2.justanswer.com/uploads/ZZdaryl/2009-06-14_153454_torque.pdf

Main Bearing Cap Bolt 4.3L Step 1 15 ft lbs (20) Step 2 Additional 73 Degrees

i don't know if that's correct for main bearing caps since another link states it's much higher

4 3 Vortec Piston Specs eHow

hopefully a GM guy will chime in to confirm the main bearing torque

the rod bearing torques are the same on all the other links

Main bearing cap bolts there is a outer cap bolt that are torqued to 20 ft lbs + 1/4 turn. Then there a inner cap bolt that are torqued to 15 ft lbs + 1/4 turn. Con rod bolts are torqued 20 ft lbs +1/4 turn

the specs for the 1991 prelude with a 2.1 engine are, the connecting rod caps are 34 ftlbs and the main bearing cap are 49 ft lbs, hope this helps,

Okay, the main bearing caps only have 10 bolts, i think your looking for the connecting rod caps, they have 16 bolts, i will list them both, theres a tightening sequnce for the main bearing caps, these are the caps that hold the crankshaft to the engine block, the connecting rod caps hold the pistons to the crank and they have 16 nuts,For a 2004 mazda 6 with the 3.0 engine the torque specs are as follows.
Connecting rod bolts step 1) 19.2 - 23.6 ft lbs.
step 2) tighten an additional 80 - 100 degrees

Main bearing caps step 1) 32.5 - 33.9 ft. lbs.
step 2) tighten an additional 175 -185 degrees.
heres a diagram for main caps to tighten in order.
hope this is helpful.

Assuming 3.0 V6, per my manual:

All in FT pounds torque,unless noted:

Main bearings: 60
Connecting rod bearing cap nuts: 34
Rocker arm shaft bolts 180 INCH POUNDS
Intake manifold: 168 INCH POUNDS
Exhaust manifold nuts: 18
Crankshaft vibration dampner bolt: 112
Cam shaft sprocket bolts: 70
Head bolts: 76 - 83
If you need others please let me know, when working with Aluminum parts go easy as they can strip easy.
Please let me know if this helped,
Tom

ft lbs

Main Bearing Cap Bolts 75-85 56-62
Connecting Rod Cap Nuts 31-39 23-28

Inner main bearing cap bolts:
Torque to 15 ft-lbs, then rotate an additional 1/4 turn

Outer main (windage tray) bearing cap bolts:
Torque to 20 ft-lbs, then rotate an additional 1/4 turn

Main bearing cap cross bolts:
Torque to 250 in-lbs or 20.83 ft-lbs

Connecting road bearing cap nuts:
Torque to 20 ft-lbs, then rotate an additional 1/4 turn