SOHC.co.uk Forums > CB350/400

Cleaning the lower instrument bowls - Revs & Speedo

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McCabe-Thiele (Ted):

--- Quote from: Moorey on October 14, 2021, 11:04:36 AM --- 
    Not all stainless is rust free it depends on the gade of stainless used and conditions. Even 316 will rust if given the right conditions. Also lower grades are "magnetic".

--- End quote ---

We might be talking semantics here as when I googled stainless steel it said - Stainless steels are steels containing at least 10.5% chromium, less than 1.2% carbon and other alloying elements. Stainless steel's corrosion resistance and mechanical properties can be further enhanced by adding other elements, such as nickel, molybdenum, titanium, niobium, manganese, etc.

As a layman it does not have the look / appearance of chrome plating more like low grade stainless plus it is quite thin at the edges.

McCabe-Thiele (Ted):

--- Quote from: Oddjob on October 14, 2021, 01:05:51 PM ---Sorry Ted, I was refering to the 500/550 clocks, I forgot yours is a 400.

If that's stainless it's a very poor quality stainless.

--- End quote ---

All I can say Oddjob is taking into account it's a 43 year old part that might explain why it has corroded a little over the decades - there is also galvanic corrosion to be considered with the other steels in close contact or proximity plus a degraded damp plastic cushion.

Moorey:
Out of curiosity or if you can be arsed and you have a scrappy near by they should be able to tell exactly what it is with their XRF gun.

McCabe-Thiele (Ted):

--- Quote from: Oddjob on October 14, 2021, 09:59:51 PM ---Just had an idea Ted, if you want to sent them to me I’ll see if I can work my magic on them and get them like new or better.

If they are stainless you need specialised buffing soap to get it to shine and I have all that.

Can’t promise I can remove all the pitting but I’m sure I can make them look far better than they are.

--- End quote ---

I'll PM you Oddjob.

McCabe-Thiele (Ted):
I can confirm that Ken did a great job on my instrument bowls. I could have had a shave using them as my mirror they are now "bling" using the modern vernacular.

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