RE: [xj-s] Torque Wrench Settings

["Kirbert" <palmk@mailer.gadcomm.net>]

> From:          "Craig Sawyers" <craig@sawyers.demon.co.uk>
> M8 is metric coarse,
> and is very close in spec to 5/16 UNC.  The corresponding metric fine thread
> is very close to UNF.  My engine clearly came from a hybrid era, because my
> block is UNC and UNF, and my heads are metric.  Engine dates from 1984.

Unbelievable!  I never knew ANY fasteners on the engine itself went 
metric!  And doing just SOME of them makes such good sense!

Mine are genuine 5/16", exactly as specified in the ROM, and my car 
is an '83.

> On my engine all tappet block cap heads, studs and nuts are M8 coarse, so no
> confusion on mine.

The NUTS are coarse thread?  Including the ones on the cam bearing 
caps?  I'd be hesitant to use the torque spec from the ROM, since it 
says it's for UNF nuts.

> My service manual is AKM 9006 Ed 5.  Copyright date is 1988.  What is yours?

Repair Operation Manual, AKM 3455, copyright 1975.  The supplement is 
AKM 3455/S1 copyright 1982, but doesn't mention any revised torque 
data.

 -- Kirbert      |     If anything is to be accomplished,
                 |     some rules must be broken.
                 |          - Palm's Postulate

---

References:

• RE: [xj-s] Torque Wrench Settings
• From: "Craig Sawyers" <craig@sawyers.demon.co.uk>

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