XK 140 torque values cylinders exhaust manifold to cylinder head?

XK
1

Hi Jaguar enthusiast, I googled this evening but cannot find any reliable info about the torque values about the exhaust manifold to the cylinder head.
Do have some of you this info?

Thanks!

Teun

2

Teun:

Given that some can only be reached using a box end spanner, as tight as I can get them has always worked for me.

Chris.

3

According to the Fastenal.com torque chart:
Torque for 5/16-24 UNF silicon bronze nuts is 131 inch pounds.
https://www.fastenal.com/content/feds/pdf/Torque%20of%20Stainless%20Steel,%20Non%20ferrous%20Torque.pdf

4

Thanks Chris, Rob.
I thought Jaguar had given it a tightening torque. Warming Up Cooling down from the Exhaust Manifold.
I will set them according the Fastenal sheet. 14,8 Nm (131 In-lb)
Chris: 6 nuts I can reach with the torque wrench.

Teun