Cylinder Head tightening
I bought my 401 last November. The engine had recently been rebuilt and when I took over the car had done around 150 miles since the rebuild. My understanding was that the head was re-torqued at some time during the 150 miles but has not been done since. I do not know what kind of head gasket was used but assume that it is of modern construction, and therefore compressible.
The engine has now completed over 1300 miles and I suspect that it would be wise to torque the head down again. I have two problems, firstly what torque figure do I use? I can find no reference to any figure in the workshop manual, or anywhere else! Secondly, I do not possess either of the special box or ring head spanners which are apparently required. Some advice would be much appreciated!
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