Mirror Polishing Engine Parts

[FeaRThiS]

OK guys this is like my mini project. I have never done this before so might take me a while but I am going to post up progress ect and hopefully will turn into a howto guide.

Things required so far I have

Detail Sander
WD40
Sanding block
Lots of sandpaper
40-60-80-120- 220-320-420-600-800-1000-1500-2000-2500-3000
Small files

I am doing a alloy airbox from a wr ur quattro (curtisy of paulmac) for my kv coupe if it all goes well will do other parts that you can actually see.

Heres what it looked like when I got it




After 3 hours with the detail sander (40grit) and a file this is what I have got so far


From what I have read I need to get all the dark patches out before I move onto 60grit

Will update tomorrow once I have spend another lifetime sanding.

[PeteUr]

I'll be following this, i've just got rid of my airbox as it looked a lot worse than that but there's other engine bay bits i'd like to be doing

[richardk]

ehr.. never polished something i guess.. lose the 800 till 3000 sandpaper...[ 3000 my god.. thats the some as rubbing a newspaper against the alloy ]

you start with 80 till 400 and then 600 wett..
after this you gett a good polishmotor and some good polish blocks..
first start with sisal and brown polish block
then you work it up till your with the soft cloth and blue polish block ( unipol)
after that wih a cloth and unipol from a can afterpolish

some work of mine last months




























[/quote]

[richardk]

i will make a DIY how to polish in the few next weeks..

and why wd40????

[FeaRThiS]

from what I have been told it works a lot better than water when you are doing wet sanding.

[richardk]

who told you, the wd40 selling man? water and a tiny drop of soap works fine (even the bodyshops doesn't use wd40)

but hey.. how do i know..

for the polishing blocks :

http://www.polierbock.de/

[FeaRThiS]

a few people off the vr6 forums told me to use wd40 i have heard others say saop and water too

[richardk]

http://www.polierbock.de/c/12-poliervideos/

if you want to keep your nails this is an option for you an d much faster working
look at the video and product by the video called
Schleifen und Polieren einer Ansaugbrücke

[john johnson]

I've just Given my cam cover, front pulley cover and throttle bodyto the neighbour to polish as he is a silversmith and polishes alsorts. He was going to do the airbox but we decided not to do it as you can't see it tbh when on

[richardk]

believe me , i polish for more than 15 years now wheels as an hobby( in the weekends ) for show cars.. never used wd40 a my custommers won quite a few trophies with there wheels...

[richardk]

also did engine covers etc.. now a days we mostly gloss polished this parts in my friends his glosspolish machine

[FeaRThiS]

well all the extra info is very helpful and the only reason I am doing the airbox is so if it all goes wrong no one will every see it if it works out rocker cover and inletmanifold will be the next parts on the list mite even give the wheels a go but wont be keeping them much longer anyway.

[richardk]

i will make a how to in the next few weeks with some handy tips...

[terrybullwon]

to save your self your trouble buy a cleaner called 10A from commercial kitchens

[K Simmonds]

from what I have been told it works a lot better than water when you are doing wet sanding.

Have to agree, on bare metal WD40 works far better as an abrasive lubricant than water, soapy or otherwise. Obviously it's crap for sanding anything other than bare metal.