Volvo TMD40A

[ChasR]

I'm reassembling the engine after head work and found there is no torque spec in the manual for the bolts attaching the exhaust header. The bolts are approx. 10-12 mm so I'm assuming around 40 ft-lbs. Does anyone know the proper torque foe these bolts.

Thanks

 

[makomark]

hERE'S THE torque values from my volvo TMD40 service manual

torque to:
Fastener size Nm lbt.ft
M5 6 4.4
M6 10 7.4
M8 25 18.4
M10 50 36.9
M12 80 59.0
M14 140 103.3