Atlas timing cover screws

After over 40 years, it would be amazing if all fasteners were original.

Somebody's Haynes Manual must be different to mine.

Page 38 of my Haynes shows Timing screws sizes and positions.

See attachment

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timing-cover-screws-bmp

Previously philip_hannam wrote:

Somebody's Haynes Manual must be different to mine.

Page 38 of my Haynes shows Timing screws sizes and positions.

See attachment

Correct, I couldn't find this picture in my Haynes Featherbed manual. It seems to be only in the Commando manual.

Fritz

Previously Fritz Wettstein wrote:

Previously philip_hannam wrote:

Somebody's Haynes Manual must be different to mine.

Page 38 of my Haynes shows Timing screws sizes and positions.

See attachment

Correct, I couldn't find this picture in my Haynes Featherbed manual. It seems to be only in the Commando manual.

Fritz

Hello I have found the Hayens manuals to be in correct on some subjects the wiring diagrams are incorrect years for 650 manxman and 650ss

Further,-the Electra primary drive cover has at least three different lengths, on one occasion working on a customers bike I found the holes in the primary case iner of different lengths to my own Electra, I had a spare engine, checked that-different again. so it appears that you get what you get at time from the factory.

I do not like Allen bolts for this job in any case, after having them for some years we find that often the Allen screw is SS and hence too hard for the ally it is going into, and being a socket head very easy to over tighten also it is very easy to have a set of cover screws that are just notthe right length, so you end up stripping out the ally thread in the chain case. I find that going back to the traditional cheese heads you get the right lengths and as your screw driver might slip out of the slot when you tighten you take extra care when tightening and do not overtighten. You pays your money and takes your choice.

I'm with Al regarding Allen head cap screws. The cheese head are both original and safer. The other way of ruining threads is to forget to clean out the threaded holes from time to time. I have seen a few damaged cases caused by partially blocked threaded holes and enthusiastic use of Allen screws.