I was washing the old "th" wagon the other day and noticed this.

20436
Has anybody seen this before?

it's just surface rust isnt it?

got the same thing. sometime i'm gonna take it off sand it down prime it then re spray it black

yeah i need to do that 2 my TE aswell, we did it to my mate vt commie it was piss easy and looks alot better now.

electrolysis on wiper arm

Umm - hardly electrolysis!!!

It's called rust!!!

TL-R
I called it electrolysis because it is a white powder thats coming off it and not a redish brown.
I have gone out to the car with a strong magnet the result is as shown
the bottom part of the arm(left hand side in photo) is non magnetic and the top of the arm is magnetic.

Apologies - thie white powder you refer to looks very much like the flash from the camera!

Wiper Arm Driver's Side – MR 908437 $30 plus GST
Blade Assembly Driver's Side – MR 908441 $13.20 plus GST
Wiper Arm Passenger's Side – MR 908436 $28 plus GST
Blade Assembly Passenger's Side – MR 908440 $13.20 plus GST

and while you at it replace the plenum covers - (perished rubber in the base of the screen) - about $36 total for BOTH sides

Go for it big spender!

Had that on my TS
Wire brush it off, sand smooth and spray..........easy fixed:)

its cast alloy

when my tl does it im going to try remove the paint and polish it

yer its rust/corrosion, its just a different material. iron goes reddy/brown when corroded, aluminium based alloys will go white. electrolysis is the opposite incase you were wondering, the process of electrifying the oxide (adding carbon) to produce the aluminium metal.

brush it off and re-paint it with something that could protect against corrosion if its annoying you that much

Wiper Arm Driver's Side – MR 908437 $30 plus GST
Blade Assembly Driver's Side – MR 908441 $13.20 plus GST
Wiper Arm Passenger's Side – MR 908436 $28 plus GST
Blade Assembly Passenger's Side – MR 908440 $13.20 plus GST

and while you at it replace the plenum covers - (perished rubber in the base of the screen) - about $36 total for BOTH sides

Go for it big spender!

:shock: is that iT!? i've always wanted to replace mine, especially the plenum covers! (was parked under a tree when waiting manual conversion) might have to go see the dealer soon.

:shock: is that iT!? i've always wanted to replace mine, especially the plenum covers! (was parked under a tree when waiting manual conversion) might have to go see the dealer soon.

yepper that's IT! I can post exact part # and prices on the plenum when I get to work but these bits are cheap stuff and I have to say replacing the arm AND the blade gives you back quiet wipers. I tried several brands and types of aftermarket blades but they were all noisy compared to new Mitsu originals.

The plastic covers (with rubber strips) for the plenum are:

Part #: MI-AW341268 - Garnish ASSY-DECK-RH: $15.62 not including GST
Part #: MI-AW341267 - Garnish ASSY-DECK-LH: $17.51 not including GST

So yeah, $36.45 ready to go including GST for the pair.

The plastic covers (with rubber strips) for the plenum are:

Part #: MI-AW341268 - Garnish ASSY-DECK-RH: $15.62 not including GST
Part #: MI-AW341267 - Garnish ASSY-DECK-LH: $17.51 not including GST

So yeah, $36.45 ready to go including GST for the pair.


I was thinking they must have not read your thread properly. lol
Why bother to respray it when the new perfect one is that cheap. and hey if it really only bothers you that much anyway.

Save yourself the trouble of respray and just buy the arms.

I was thinking they must have not read your thread properly. lol
Why bother to respray it when the new perfect one is that cheap. and hey if it really only bothers you that much anyway.

Save yourself the trouble of respray and just buy the arms.

Yes but when you spray them a nice gloss black they look heaps better then new stock items:D

SARRAS
thanks for part numbers , will put them on my shopping list next time I go past mistsubishi
speaking of which I live in northern sydney and theres not a dealer within 15 km's believe it or not :nuts:

Yes but when you spray them a nice gloss black they look heaps better then new stock items:D


How long did it take ya? and any pics of them? I thought you would need to remove the rest of the paint or sand it etc...and then spray it. thought it would be troublesome and even waste cash if not done properly.

yer its rust/corrosion, its just a different material. iron goes reddy/brown when corroded, aluminium based alloys will go white. electrolysis is the opposite incase you were wondering, the process of electrifying the oxide (adding carbon) to produce the aluminium metal.

It possibly is electrolysis, but not the kind that you are refering to. I see it a lot as I work in a chandlery(glascraft marine, brookes st, fortitude valley, brisbane. best prices in town :D ). Dissimlar metals, in this case aluminum and steel, can react with each other causing the alloy, being the "softer" of the two, to corrode. Its got to do with the transfer of electrons between the two metals. And yes, its happening to my wipers aswell. At work we use a product called "duralac" to coat the contact points of any dissimlar items we are joining to stop it i.e. stainless steel valve to a bronze skin fitting.

SARRAS
thanks for part numbers , will put them on my shopping list next time I go past mistsubishi
speaking of which I live in northern sydney and theres not a dealer within 15 km's believe it or not :nuts:


!! Northshore Mitsubishi has a great parts place in Artarmon.

http://www.northshore-mitsubishi.com.au/

I was thinking they must have not read your thread properly. lol
Why bother to respray it when the new perfect one is that cheap. and hey if it really only bothers you that much anyway.

Save yourself the trouble of respray and just buy the arms.

Yeah I'm being a little sarcastic - its partly that and partly because a lot of peeps often carry on in here about how expensive Mitsu bits are..... which is just plain out of touch. From recent things friends and acquaintences have had done I can say that parts for Volkswagon Golfs are expensive ($800 for a rear door window winding mechanism, which is plastic by the way), parts for Alfa Romeos are insanely expensive ($750 each for front disks on a 156), a boot lid for a Honda S2000 is over $2500.... Mitsu stuff is mostly quite reasonable by comparison.

Interestingly enough the Alfa brakes were the last straw for that owner and he has now traded the car for a spanking new Lancer ES 2.4 - in part because of the cost of ownership figures on my car versus his Alfa (both are company cars so both have tracked costs)

Electrolysis would mostly, if not always add a metal substance to the anode, by taking it out of a solution and the solution replaces the chemical substance that was removed from the cathode.

(Chroming is a form of this I believe)

Correct me if I'm wrong there, don't remember much of chem these days

corrosion (chemistry)
Eating away and eventual destruction of metals and alloys by chemical attack. The rusting of ordinary iron and steel is the most common form of corrosion. Rusting takes place in moist air, when the iron combines with oxygen and water to form a brown-orange deposit of rust (hydrated iron oxide). The rate of corrosion is increased where the atmosphere is polluted with sulphur dioxide. Salty road and air conditions accelerate the rusting of car bodies.

Corrosion is largely an electrochemical process, and acidic and salty conditions favour the establishment of electrolytic cells on the metal, which cause it to be eaten away. Other examples of corrosion include the green deposit that forms on copper and bronze, called verdigris, a basic copper carbonate. The tarnish on silver is a corrosion product, a film of silver sulphide.

Taken from http://www.tiscali.co.uk/reference/encyclopaedia/hutchinson/m0016460.html

Actually....It is a reaction between the Alloy and the Alkaline found in windscreen washer additives....can also create rust under windscreen rubbers...
I was washing the old "th" wagon the other day and noticed this.

20436
Has anybody seen this before?