Horizons Unlimited - The HUBB

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-   -   Emory Cloth/Paper - what to bring? (https://www.horizonsunlimited.com/hubb/travellers-questions-dont-fit-anywhere/emory-cloth-paper-what-bring-446)

Wheelie 16 Mar 2006 18:04

Emory Cloth/Paper - what to bring?
 
We will be riding two classic Vespas from Cape Town to Nairobi this summer (6000 km). These bikes are prone to engine siesure (among tons of other issues). We will therefore bring something which we can use to "hone" the sylinder and barrel by hand, if we were to be so unfortunate(we will also be bringing a spare cylinder).

We will also need the emory paper/cloth to rough up surfaces if parts need to be glued, etc.

What types of abraisives should we bring?
Cloth versus paper?
Wet versus dry?
Grit sizes?
Brands?
Quantity of each type?


I hope this topic will be of relevance to other travellers as well...

Any comments are welcome.

oldbmw 17 Mar 2006 01:36

I used to use wet and dry with lots of engine oil for the wet.. can't remember the grade.
remember to clean the barrel well after wards (including any ports)

Mr. Ron 17 Mar 2006 12:43

I carry a small roll of 1'' emory cloth on my kit for this exact purpose, cleaning surfaces for bonding and cleaning sparkplugs. I've also used it for removing glazing from my brake hub. I prefer the cloth because of its durability and packability, and you can use it wet with oil or mineral spirits as a lubricant. It also fits perfectly into a film container, and works best for prepping tires for patches.

Grant Johnson 17 Mar 2006 22:56

Quote:

Originally posted by Mr. Ron:
I carry a small roll of 1" emory cloth on my kit for this exact purpose, cleaning surfaces for bonding and cleaning sparkplugs. I've also used it for removing glazing from my brake hub. I prefer the cloth because of its durability and packability, and you can use it wet with oil or mineral spirits as a lubricant. It also fits perfectly into a film container, and works best for prepping tires for patches.
NOT a good idea to use sandpaper of any kind for brake shows - if you leave behind just a very few granules of abrasive, think what it can do to your brake hub. I use a coarse file for the job. Otherwise, agreed! http://www.horizonsunlimited.com/ubb/smile.gif

For a cylinder I'd use a larger piece of wet/dry paper to finish, and emery cloth to clean up nasty marks and aluminum transfer. Or better muriatic acid (HCL, or hydrochloric acid - and if memory serves, you can make HCL with salt and sulphuric acid - or battery acid http://www.horizonsunlimited.com/ubb/smile.gif but the proportions escape me - it's out there somewhere) works wonders on aluminum left on iron cylinders, much better than sandpaper of any type. Gets it back to almost new, with small touch-up sanding to finish it off.

Cleaning a cylinder after hand honing - LOTS of gasoline/petrol and white paper towels to make sure it's REALLY clean - much the same as for brake shoes. Also recommended is to wash it in lots of hot soapy water, then IMMEDIATELY dry thoroughly, and oil the cylinder so it won't rust.

Grant



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