FuryRebuild
|
| posted on 21/6/13 at 08:35 PM |
|
|
an example of galvanic corrosion - a dead pinto alternator
So, I am about to try and sell my full fury pinto outfit again, and have unboxed the alternator from where I stored it over winter.
By storing it, I mean putting it in a plastic sealable box, with some other stuff. one of the things in the set of 'other stuff' was a
steel door hinge. They were touching. Here is the result, for your amusement:
 
don't do this at home
It's so mullered the pulley won't even turn.
When all you have is a hammer, everything around you is a nail.
www.furyrebuild.co.uk
|
|
|
|
|
snapper
|
| posted on 21/6/13 at 09:38 PM |
|
|
Ohh that'll clean up ok
I eat to survive
I drink to forget
I breath to pi55 my ex wife off (and now my ex partner)
|
|
|
blakep82
|
| posted on 21/6/13 at 09:53 PM |
|
|
Thought steel rusts to save aluminium?
Wasnt that the problem with old landys? The aluminium body always looked good, but the chassis rusts and protects it?
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
|
|
|
mcerd1
|
| posted on 21/6/13 at 10:10 PM |
|
|
quote:
Originally posted by blakep82
Thought steel rusts to save aluminium?
Wasnt that the problem with old landys? The aluminium body always looked good, but the chassis rusts and protects it?
other way round - the more reactive metal protects the less reactive one
on its own aluminium is protected by a thing layer of its own oxide (anodising makes this layer thicker) but it can't save it from galvanic
corrosion when its in contact with steel
the landrovers have big problems with the alloy panels corroding where they are in contact with steel (the doors are an alloy skin over a steel frame,
its always the alloy that goes first)
mind you the steel chassis rust just like normal too as they don't actually have that much contact with the alloy....
-
|
|
|
Bare
|
| posted on 22/6/13 at 01:33 AM |
|
|
A Pinto in my part of the world is regarded about equal to a fresh pile of Dog Poo.
Move on.. a Pinto in it's entirety, is simply scrap metal, by any descriptor.
|
|
|
Mr Whippy
|
| posted on 22/6/13 at 06:17 AM |
|
|
quote:
Originally posted by blakep82
Thought steel rusts to save aluminium?
Wasnt that the problem with old landys? The aluminium body always looked good, but the chassis rusts and protects it?
Na it's actually the other way round, the steel rots the aluminium body very badly often cutting holes right through in the shape of the steel
bracket and the aluminium turning to white powder, why when they knew of this they didn't simply put a gasket between the to?
|
|
|
sjmatthews
|
| posted on 22/6/13 at 06:51 AM |
|
|
quote:
Originally posted by Bare
A Pinto in my part of the world is regarded about equal to a fresh pile of Dog Poo.
Move on.. a Pinto in it's entirety, is simply scrap metal, by any descriptor.
Be careful not to offend a large number of forum users that continue to use these old engines. The Pinto may not be the ideal engine of choice
nowadays, but they're not a bad engine and cheaply provide bucket's full of fun in locost kit cars 
I'll be in the garage dear!
|
|
|
FuryRebuild
|
| posted on 22/6/13 at 07:40 AM |
|
|
quote:
Originally posted by Mr Whippy
quote:
Originally posted by blakep82
Thought steel rusts to save aluminium?
Wasnt that the problem with old landys? The aluminium body always looked good, but the chassis rusts and protects it?
Na it's actually the other way round, the steel rots the aluminium body very badly often cutting holes right through in the shape of the steel
bracket and the aluminium turning to white powder, why when they knew of this they didn't simply put a gasket between the to?
Bit out of order there. There are plenty of people running on Pintos, and some series where the engine is mandated. It may be heavier than more modern
ones, but it's bomb-proof. If you'd taken the time to read anything about my other posts rather than jump right in, you'd know why
it was up for sale.
One of the really nice places about this forum is that it's very much like a friendly chat down the pub, and is remarkably light on
armchair-engineers.
When all you have is a hammer, everything around you is a nail.
www.furyrebuild.co.uk
|
|
|
myke pocock
|
| posted on 22/6/13 at 07:55 AM |
|
|
Oh well Mr Bare. Its a pretty rapid pile of dog poo then!!!! What you using, a Trabant engine maybe?
|
|
|
owelly
|
| posted on 22/6/13 at 09:21 AM |
|
|
Worry not. I'm sure most folks on here can take Bares contributions and opinions for what they are.
http://www.ppcmag.co.uk
|
|
|
MikeRJ
|
| posted on 22/6/13 at 02:27 PM |
|
|
I'm not convinced the steel door hinge was entirely to blame considering the alternator is bolted to a steel bracket!
You don't get bi-metalic corrosion without introducing some moisture though.
|
|
|
omega0684
|
| posted on 22/6/13 at 03:33 PM |
|
|
quote:
Originally posted by Bare
A Pinto in my part of the world is regarded about equal to a fresh pile of Dog Poo.
Move on.. a Pinto in it's entirety, is simply scrap metal, by any descriptor.
You clearly haven't been in a 200+bhp pinto'd kit car if you're making comments like that!
[Edited on 22/6/13 by omega0684]
I love Pinto's, even if i did get mine from P&O!
|
|
|
