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Hi ! last evening i checked bolt lugs bearing following Peter article on bolt fitting. First picture is my bolt.
First picture is my bolt. I hope where lugs are shining , thre must be contact.... But i am unlucky. Next picture, recoil lugs with felt pen marks.
And third picture shows a very poor bearing
coming soon
I can't post lugs picture after opening and colsing the bolt a few times because file is too large... but it seems there is not contact or a tiny contact like an hair at the bottom of the lugs. Could i use sand paper mounted on a small wooden block? i'd use 600 grit sandpaper or something smoother.
I don't think sandpaper or emery cloth will even touch those induction hardened surfaces Bow. We used little 3-corner stones. I'm not sure that I'd use felt pen either because by definition, it's dry within a millisecond or so! And what YOU need it a tell-tale mark that engineers blue gives and leaves behind. I think that from your description you might find that using engineers blue (and not a felt pen....) your bolt will be bearing OK.
Thanks Peter but engenner blue is banned because it was found to be carcinogenic. I cannot find it. so i have to look for a different pigment. I have a kg or so red lead. i can suspend it ina lubricant oil and apply a dab on each lug. Now i try..
Interesting Bow, redlead is also a carcinogenic and has been outlawed for years.
That made me chuckle Muffer! There must be an alternative to engineers blue in France Bow!
That the original red-lead is banned in Oz, it's banned here too. A bit like your old usual 60 and100w old filament light bulbs! Banned for domestic use in Europe no less! However, if you want/need the old type bulbs, say for industrial use, then guess what? Yep......., you can have as many as you want!
Like red-lead. If you need it for, say, shipyard work or your ficticious boat moored somewhere, you can have it. But if you want it to protect your old wood-frame windows...... Nope..., banned! What a crazy world! Or if you're a pom, what a crazy Europe.
I don't think Bow,s "red lead" is the one your thinking Muffer, we used a red powder mixed with lube oil when serving my apprenticeship, we used it on face plates when in the training school and in the shipyard, in fact Engineering blue was never used, we did use a blue paste,/liquid when marking out.
In Italy red blue has never been banned.But...if my red lead contains plumb then it's toxic agent...Quote:
Originally Posted by bigduke6
For stoninig the bolt, in future, i'm thinking to use smart, thin diamond stone like these:
Diamond Hone Eze-Lap Diamond Products
If they're diamond , they're hard enough.