Torque settings for studs on nissan navara ( engine type td27) exhaust manifold?

The studs that bolt the exhaust manifold onto the engine on my dads nissan navara (year 1990) with a td27 engine have broken. The engine is un turbed. What are the stud torque settings for these bolts? Thanks. 

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I saw some settings of 20 ft-lbs, but that wasn't for this engine, Try this link. I didn't look at it, but it says it is for your vehicle.

David97 (author)  Quercus austrina6 years ago
I think this is for a d40 engine
caarntedd6 years ago
I've never used a torque wrench on anything other than engine internals and never had any problems. For an exhaust manifold, do the nuts/bolts up in a spiral pattern starting from the middle. Just do them up tight, then tighten again after a couple of days. The worst thing that can happen is a leak, then try again with a new gasket.
Or a few broken Studs.
If you can break the new studs, then you're too big for me to argue with.