Haynes Forums  

Go Back   Haynes Forums > Haynes Roadster Forums > General discussion
FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Display Modes
  #11  
Old 10th August 2009, 03:34 PM
adrianreeve adrianreeve is offline
Senior Member
 
Join Date: Mar 2007
Posts: 401
Default

I did all my donor stuff with electrolysis, using a cheap 12v car battery charger (it has to be a cheap one with no conditioning circuit in it, else it just kicks into maintenance mode), and a 1.5mm steel plate in the bucket as the electrode.

I left my front hubs in overnight, and the next morning, it was genuinely like someone had swapped them for new ones overnight. As Ash says though, you need to wash, dry thoroughly, and then paint straight away, don't even leave them a day, as they WILL rust.

Cheers

Adrian
Reply With Quote
  #12  
Old 10th August 2009, 05:45 PM
mark mark is offline
Senior Member
 
Join Date: Mar 2009
Location: Billingham (north east)
Posts: 770
Default

Quote:
Originally Posted by londonsean69 View Post
I have a cheap and nasty Halfords charger, it's only for small cars, puts out about 4 amps (I think). It does the job perfectly on anything I have tried so far - Uprights, Hubs etc.

The voltage is usually just over 12V

It really doesn't matter what you use - it's magic

Sean
I totally agree it is magic

I used it on my sierra uprights and rear drum backplates, it worked an absolute treat

As geeman said it does take an age but if you just leave it going all day whilst your working in the garage, its doing the hard work for you.

Definately worth a try if you are toying with the idea.

I too used a very cheapy charger (£8) and it draws about 11 volts.

mark
Reply With Quote
  #13  
Old 10th August 2009, 11:34 PM
Matthew Matthew is offline
Member
 
Join Date: Mar 2007
Location: Liphook, Hampshire
Posts: 95
Default

I used an ancient 12v charger, and it shows anything from 4 amps at the start to the needle just quivering after it's being going a while, never bothered to measure the voltage. Some really rusted parts I left in for a couple of days, twisting them to get all the rust exposed.

When it comes down to it you're going to be taking a lot longer to build the car than you will be de-rusting donor parts so he time taken doesn't really matter

Matt
Reply With Quote
  #14  
Old 10th August 2009, 11:43 PM
geeman's Avatar
geeman geeman is offline
Senior Member
 
Join Date: Jun 2009
Location: Croydon
Posts: 318
Default

i used an old car battery when i did my hub, at first it was drawing more than 10amps, but i think the batter ran flat pretty quickly so it probably stopped some time during the nught.
__________________
my build pics
Reply With Quote
  #15  
Old 11th August 2009, 07:21 AM
ACE HIGH ACE HIGH is offline
Member
 
Join Date: Apr 2009
Location: Mangawhai New Zealand
Posts: 69
Default Electrolysis

I don't like the idea of electrolysis to clean parts at all,it can lead to hydrogen embrittlement and what I will call"a highly active surface' that can rust and corrode real fast,and be a problem accepting paint,and bearing surfaces can be damaged also,electrolysis to colour parts is OK but something quite different.

However, a sandblaster ,even a simple vacuum type from China(about $70)works miracles,only catch you need the maximum size air compressor that will operate on single phase,around 12/15 cu ft per minute 100 psi plus,but worth buying if you can afford it,even better if the sand goes through an old pressure tank first rather than vacuum fed.Google the net for DIY.

Also there are 2 sandblast cabinets on the market,about $300 NZ,forget this one and a larger one about $700 NZ,you could easily make the portable unit and the cabinet.Dry sand is a must and take care of your lungs,no cheap "Michael Jackson"style masks,only the highest quality masks and helmets.

Sandblasting,works like a miracle,far better than any other way I am aware of and I highly recommend it as a great tool to have in a Clubman 7 build.You just would not believe what it will do for say a diff,engine or brake parts etc.David
Reply With Quote
  #16  
Old 11th August 2009, 06:30 PM
Sam Sam is offline
Junior Member
 
Join Date: Jul 2009
Location: Colchester
Posts: 12
Default

I tried the electrolysis thing but found shot blasting much quicker and just as effective. It was alot of fun mind. Got bored with the battery charger so used TIG inverter and ramped it up to 300 amps. See pics sample took about 5 mins.
Attached Images
File Type: jpg Electro Tank Small.jpg (34.6 KB, 51 views)
File Type: jpg Electro Sample Small.jpg (38.2 KB, 45 views)
Reply With Quote
  #17  
Old 11th August 2009, 06:40 PM
RAYLEE29's Avatar
RAYLEE29 RAYLEE29 is offline
Senior Member
 
Join Date: Sep 2008
Location: POOLE DORSET
Posts: 520
Default

Im surprised you didnt blow yourself up at that many amps
Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT +1. The time now is 06:06 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.