Author Topic: Hello from the Netherlands  (Read 582 times)

Offline royhall

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Re: Hello from the Netherlands
« Reply #15 on: December 02, 2017, 08:56:14 AM »
I also use, honda4.nl I find them very good. Also a good website.
Current bikes:
TriBsa CCM 350 Twin
CB350F in Candy Bacchus Olive (needs minor carb work)
CB750F2 in Candy Apple Red
CB1300SA in Black
Triumph T100C
Suzuki GS1000HC (waiting for Menno)
CB450K0 Black Bomber (current project)

Offline janb

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Re: Hello from the Netherlands
« Reply #16 on: December 02, 2017, 11:17:56 AM »
Thanks guys for all the replies. I feel instantly at home here at the forum!

I guess soldering is the more appropriate word for what i had in mind. Didn't quite figure it out yet what alloy these parts are made off. Can't find any reference for "monkey metal"  ;).
The alloy is mainly zinc with additions of magnesium, aluminum and copper. Often referred to as ZAMAK. Am i right?

I think i'll give it a try with Durafix, witch is available in the Netherlands.

Some of you pointed out the possibility of a fuel leak and the adherent risk of fire. Thanks for that. If a im not for 100% confident that its safe i will swap the bowl immidiatly.

And very generous of Menno to offer pre owned ones. I like that more than a new one because of the patina!


Cheers,

Jan

Offline Bryanj

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Re: Hello from the Netherlands
« Reply #17 on: December 02, 2017, 05:40:24 PM »
"Monkey metal" is a generic term used here in UK to denote all the cheap, easily broken, unrepairable alloy mixes that are used. I believe, but willing to be proved wrong, that a high zinc content is part of it and carbs are cast from it. I tend to forget that English is a language that separates all the countries that speak it!

https://en.wikipedia.org/wiki/Pot_metal
« Last Edit: December 02, 2017, 05:42:36 PM by Bryanj »


Offline janb

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Re: Hello from the Netherlands
« Reply #19 on: December 18, 2017, 09:56:54 AM »
I think you will have a laugh at me now....

The problem is that cup is very thin and heats up very quickly. The hole is near the hex shape at the bottom.Its much thicker there.

K2-K6 is right about the hard surface finish. Thats why you first lay dow a drop or two of liquid solder. Then you scratch with a stainless brush or something sharp in the liquid. Thus you break up the hard finish and the solder starts to bond with the "monkey metal". In this way there will be no re-oxidation of the surface because of lack of oxygen.

I've seen it done on carb parts on a classic event in the Netherlands. The solder is also called "Alutite".

I didn't make it that far because before the part with the hole became hot enough, the thin cup wall already melted. I should have applied the heat from underneath.

Lessons learned!

Cheers Jan

« Last Edit: December 18, 2017, 10:11:08 AM by janb »

Offline Menno

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Re: Hello from the Netherlands
« Reply #20 on: December 18, 2017, 02:05:59 PM »
Hi Jan,

I've got lots of these bowls lying around. If you need one I can send it to you.

Cheers; Menno.