Head Bolt Torques

Technical questions and answers about the Mazda Bongo

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monksie

Head Bolt Torques

Post by monksie » Tue Dec 01, 2009 8:17 pm

Could someone please supply me with the torqe settings for a 2.5 diesel bongo. This is the WLT motor.
Thanks Jon :)
Rhod
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Re: Head Bolt Torques

Post by Rhod » Tue Dec 01, 2009 9:15 pm

As far as I can work out from the Service Manual there are 3 tightening stages:

1) Tighten to 29Nm (3.0 kgf.cm)
2) Tighten each bolt by a further 90-105 degrees
3) Tighten each bolt again by a further 90-105 degrees

However I haven't done the job, so you might be best to wait until someone who has comes along & confirms the procedure :?
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mikeonb4c
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Re: Head Bolt Torques

Post by mikeonb4c » Tue Dec 01, 2009 9:26 pm

And just in case, and not that I know much about it all but people often point it out, a reminder that the bolts are use once only stretch bolts - the old ones should not be used again. Apologies if you know that (I'm sure you do) but best said just in case.

PS - if in a hurry then have a search on here as I'm sure the figures have been given out before by people like Dandywarhol and Simon Jones (just two who come to mind) who have experience
monksie

Re: Head Bolt Torques

Post by monksie » Tue Dec 01, 2009 10:10 pm

Cheers for that. Its a great help =D>
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