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Mazda estina petrol head bolts torques - Cars & Trucks

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Hi
these will be a seies of torque setting followed by a series of torque angle settings.
I f you are using new bolts (which is always a very good practice) the settings are all enclosed in the box.
Do not guess these settings ...they are soooooo important.
most of these bolts are stretch bolts and therefore cannot be reused!
CHECK THIS FIRST. If you get this wrong you will ruin the headgasket and cause many more probs..Dont cut corners.
Google will produce the settings or read the forums.
cheers
Roger

Posted on Apr 21, 2014

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: what is the 98 isuzu rodeo head bolt torque

joyce, there are different specs for sohc and dohc engines. my advice is to get a Haynes manual from the auto parts store.

doug

Posted on Sep 01, 2008

  • 4 Answers

SOURCE: head bolts torque settings

According to my haynes manual for G-S reg, 1989-1998 it goes as follows,
Stage 1:- Tighten all bolts by hand until bolt heads just contact cyl. head.
Stage 2:-Tighten all bolts to 40Nm or 30lb ft.
Stage 3:-Angle tighten all bolts a further 60 degrees.
Stage 4:-Angle tighten all bolts again a further 60 degrees.
Stage 5:- M12 x 140mm bolts ONLY angle tighten a further 20 degrees.
Hope this helps everyone, sorry it seems longwinded but that is how it's written in the manual.

Posted on Feb 07, 2009

polarcycle
  • 1392 Answers

SOURCE: head bolt torque spec

Always use new head bolts.
1)tighten to 40ft/lbs
2)back off 1/2 turn
3)tighten back to 40ft/lbs
4)tighten an additional 90 degrees
5)tighten an additional 90 degrees.

Posted on Aug 16, 2009

inspectmycar
  • 233 Answers

SOURCE: 94 mazda B3000 3.0L cylinder head torque specs

Step 1 torque to 59 ft pounds
2. Loosen one full turn
3. 37 ft pounds
4. 68 ft pounds

Use torque sequence below
aca9f77.gif

Posted on Sep 17, 2009

steve_e_uk
  • 1675 Answers

SOURCE: i need head bolt torque for mazda b2500 wl engine

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hope this helps...please vote thanks

Posted on May 31, 2010

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Since you didn't say which engine you have, I've pulled torque specs for 3 different engines. Also, since I can't include a diagram showing the relative locations of the numbered head-bolt locations, it would be a good idea for you to purchase a vehicle specific repair guide that will show this info.


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Torque sequence: --------- ' 10 6 2 4 8 ' front ' ' ' 7 3 1 5 9 ' -----------Step 1: torque in sequence to 51 Ft/Lbs Step 2: torque again in sequence to 51 Ft/Lbs Step 3: final tighten all bolts an additional 90 to 100 degrees recheck final torque in sequence *** CAUTION ***engine uses Torque To Yield head bolts (TTY) that permanently stretch during the initial installation. New head bolts must be used when cylinder head is replaced or re-installed to obtain proper torque.







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Good luck with this job!

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Step 1 torque to 59 ft pounds
2. Loosen one full turn
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Use torque sequence below
aca9f77.gif

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