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What are the torques specifications for rod bearings for a 2003 Mazda B2300 2.3L DOHC

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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johnny5846
  • 379 Answers

SOURCE: torque specs.

connecting rod = first pass 18 ft lbs , second pass 75 degrees

main bearings = first pass 37 ft lbs , second pass 77 degrees

wow that wasn't easy to find for some reason .

Posted on Jan 01, 2009

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hardinfarms
  • 144 Answers

SOURCE: 2003 mazda 6 3.0 need the main bearing torque specs

I'm sending you the torque specifications for your main bearings and also your head bolts. I also sent you main bearing and cylinder head tightening sequence. I hope this will be useful2c713bf.giffce6623.gif
Main Bearings Torque specs. 40-43 Ft. Lbs.
Cylinder Head Torque specs. 56-60 Ft. Lbs.

Posted on Oct 05, 2009

Testimonial: "thank you so much! couldnt find this information anywhere, even called the local mazda dealers!"

Dirt Dobber
  • 253 Answers

SOURCE: need torque for a 2000 Toyota Celicia GT 1.8L

Crank Main caps Tightening Torque

For the 12 Pointed Head Bearing Cap Sub-Assembly Bolts
Start from center bolts and tighten in a clockwise rotation working out
Step 1 all bolts 22 Nm or 16 ft lb
Step 2 all bolts 44 Nm or 32 ft lb
Step 3 all bolts 45 degrees additional clockwise rotation using an angle indicator.
Step 4 all bolts 45 degrees additional clockwise rotation using an angle indicator.

Hexagon Head Bearing Cap Sub-Assembly Bolts
1ZZ-FE Engine 18.5 Nm (14 ft.lb)
2ZZ-GE Engine 18 Nm (13 ft.lb)

Connecting rod:
1. Apply a light coat of engine oil on the threads and under the heads of the connecting rod cap bolts.
2. Install and alternately tighten the 2 connecting rod cap bolts in several passes. Torque: 1ZZ-FE: 20 Nm (204 kgf-cm, 15 ft. lbs.) 2ZZ-GE: 30 Nm (306 kgf-cm, 22 ft. lbs.) If any of the connecting rod cap bolts does not meet the torque specification, replace the connecting rod cap bolts.
3. Retighten the cap bolts by 90° more
4. Check that the crankshaft turns smoothly.

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Posted on Mar 19, 2010

drsinister69
  • 2317 Answers

SOURCE: What is the right Torque Specification of the

Cylinder heat bolt torque:
Torque sequence --------- front | 7 3 1 5 | | 8 4 2 6 | --------- Step 1: Torque all bolts in sequence to 14 Ft/Lbs Step 2: Torque all bolts in sequence to 29 Ft/Lbs Step 3: Torque all bolts in sequence to 36 Ft/Lbs Step 4: in the sequence, loosen the cylinder head bolts three turns. Step 5: Tighten short bolt to 15 - 32 Ft/Lbs Step 6: Tighten long bolt to 30 - 36 Ft/Lbs Step 7: Tighten all bolt to 175- 185 degree note: Do not loosen all of the cylinder head bolts at one time. Each cylinder head bolt must be loosened and the final tightening prior on the next bolt in the sequence.
Main bearing torque:
Torque sequence: Step 1: torque bolts to 91 Ft/Lbs with the exception of the rear main bearing cap Step 2: torque rear main bearing cap bolts to 88 Ft/Lbs Step 3: torque brace bolts to 40 Ft/Lbs
Connecting rod torque:
Torque sequence Step 1: Torque to 29 Ft/Lbs Step 2: Turn an additional 90 degrees

Posted on May 18, 2010

BCAS1298
  • 3092 Answers

SOURCE: TORQUE SPECS 2.2 GM 1996 S 10 PICKUP

Rod bearing torque at 38 ft.lbs.5b9c564.gif

Posted on Jun 30, 2010

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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.
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hope this is helpful.fc3bff9.gif

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Main Bearings Torque specs. 40-43 Ft. Lbs.
Cylinder Head Torque specs. 56-60 Ft. Lbs.

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