With the oldest GTV6 nearing 40 years in service, a forum to document projects and restoration seems sensible.
mikekath@iafrica.com
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Re: South Africa - 1982 GTV6 2.5 Restoration (50/100)

Post by mikekath@iafrica.com »

ELECTROPLATING
Early on in the project, I made the decision to set myself up to do my own electroplating.
Bought a kit from Tshwane Plating (Dean Boniface).
This is a very time-consuming but satisfying process.
I struggled with getting it right at times, and had to redo some items.
The process:
The power supply (bought from DIY electronics in South Africa)
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You then need a tank to put the plating liquid into (comes premixed in 5l containers from Tshwane Plating).
I would this from PlasticLand and it holds 15l comfortably, a reasonable size for most plating of smaller parts
The wiring I added to make it as easy as possible to setup and take apart.
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Less, use BIG zinc annodes, the bigger the better for your tank. When I used smaller ones, plating larger parts was a problem.
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mikekath@iafrica.com
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Re: South Africa - 1982 GTV6 2.5 Restoration (50/100)

Post by mikekath@iafrica.com »

CLEANING THE PARTS
All the pars were taken down to their smallest components and then cleaned.
I have a sandblasting cabinet and for the most time have been using aluminium Oxide "powder" to do the cleaning. It lasts and can be re-used, and is non-toxic.
Here are some items before and after sandblasting.
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mikekath@iafrica.com
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Re: South Africa - 1982 GTV6 2.5 Restoration (50/100)

Post by mikekath@iafrica.com »

On sandblasting is complete, you have to tie EACH small piece onto copper wire, this will be used to suspend the items in the plating tank.
Next step is to dip in a pickling solution. I have been using diluted (5%) Hydrochloric acid. This chemically cleans the parts before plating.
Do not leave in for too loong as it can then blacken the metal and you have to clean it again!
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Thereafter hang onto the copper strips on the tank.
You adjust amperage UP when doing larger parts. Smaller parts you can apply 2-3amps and keep in tank for 25-30 minutes.
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When the pieces come out, they are ZINC plated and bright shiny silver. You could use them like that.
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mikekath@iafrica.com
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Re: South Africa - 1982 GTV6 2.5 Restoration (50/100)

Post by mikekath@iafrica.com »

Importantly, between each step, you must rinse the parts in CLEAN water very well!
After plating, I dip the items into a Yellow Passivate, which has a chemical reaction with the Zinc and creates an even more anti-corrosive finish that also has a translucent gold colour.
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Some examples of finished items, I am sure you can figure out where they all go! :)
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Re: South Africa - 1982 GTV6 2.5 Restoration (50/100)

Post by MD »

Great job Mike.
I think the Greekster could do with his nuts being dipped and platted...lot of salt water around the Greek Islands causing all kinds of rust problems. :mrgreen:

Mind you, I don't think he would go quietly. Might need a few bods to hold him down for his own good.
Transaxle Alfas Haul More Arse
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Re: South Africa - 1982 GTV6 2.5 Restoration (50/100)

Post by Zamani »

MD,

Well he does have the Midas touch. So anything he touches turns to gold, so by now, most of the vital parts are probably already coated in gold :mrgreen:
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Re: South Africa - 1982 GTV6 2.5 Restoration (50/100)

Post by Zamani »

Zamani wrote: Sat Oct 16, 2021 6:28 pm MD,

Well he does have the Midas touch. So anything he touches turns to gold, so by now, most of the parts are probably already coated in gold :mrgreen:
Dr. Alban
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