Keith Adams

Keith Adams: creator and editor, AROnline

Keith Adams

Keith Adams created in 2001 and built it up to become the world’s foremost reference source for all things BMC, Leyland and Rover Group, before renaming it AROnline in 2007.

He is the Editor of the Parkers website and price guide, formerly editor of Classic Car Weekly, and launch editor/creator of Modern Classics magazine. Has contributed to various motoring titles including Octane, Practical Classics, Evo, Honest John, CAR magazine, Autocar, Pistonheads, Diesel Car, Practical Performance Car, Performance French Car, Car Mechanics, Jaguar World Monthly, MG Enthusiast, Modern MINI, Practical Classics, Fifth Gear Website, Radio 4, and the Motoring Independent

Likes ‘conditionally challenged’ motors and taking them on unfeasible adventures all across Europe.

Keith Adams


  1. Read the very interesting history of the K and KV engines.
    There is a misunderstanding I have seen in several texts, and even on Rover’s own you tube video regarding the long stretch bolts used on the 4 cylinder engine. And I quote from the article:
    Instead of using a series of bolts to close the cam carriers-to-head and head-to-block and block-to-ladder, the K does this by using one long bolt which goes right the way through the engine. The metallurgy of this bolt has been very carefully designed and the torquing at 64Nm brings the bolt to its yield point. Effectively the point at which the bolt will stretch with the block under its cyclic loading, to distribute these loads very evenly throughout the block.
    It mentions that the bolts are torqued to yield. This is not correct. The yield point is defined as the point where a permanent deformation of the bolt takes place. The bolts in a k4 engine operates below yield, as can be ascertained by measuring the length of new vs. old. They are normally identical. The bolt operates in it’s elastic deformation range, which means it follows Hooke’s law, and acts in essence as a spring.

    • Hi Just a comment for G Kaiser, who points out the error in the article that the K engine bolt is not torqued to yield. Can you, G Kaiser, provide evidence here?
      I was led to believe that it was torqued to yield. Moreover, i’m not sure Hook’s law applies as I understand it. I would think Plank’s constant was more appropriate, or even Murphy law. Especially if, as a rule of thumb, Occam’s razor is employed. A plaster of some kind would need to be applied in that case, of course, but any bandage would do to stem the blood-flow. Health & Safety must be paramount, naturally. I’d suggest the torque on this bold should yield, otherwise someone might get hurt and any resistance is futile.To this bold, I’d say Bernie, the game is up!

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