ADVrider

Go Back   ADVrider > Gear > The Garage
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 12-19-2014, 02:23 PM   #1
MATTY OP
ADV RIDER & DRIVER
 
MATTY's Avatar
 
Joined: Jun 2014
Location: THE BORDER ENGLAND
Oddometer: 277
Cry Cleaning oxidised alluminium

I am cleaning a alfa romeo 2 litre engine up.
The whole engine is dull a very dark grey, i have managed to get the rocker cover looking better but not without a lot of slow hard work.
I usualy just use magbrite or solvolautosol but this engine is the worst thing i have ever tried to pollish up. .
Any ideas tricks on speeding this job up or it it just going to take foreever .
MATTY is offline   Reply With Quote
Old 12-19-2014, 03:06 PM   #2
fritzcoinc
Enjoying my last V8
 
fritzcoinc's Avatar
 
Joined: Apr 2008
Location: Cypress, Tx
Oddometer: 6,679
Quote:
Originally Posted by MATTY View Post
I am cleaning a alfa romeo 2 litre engine up.
The whole engine is dull a very dark grey, i have managed to get the rocker cover looking better but not without a lot of slow hard work.
I usualy just use magbrite or solvolautosol but this engine is the worst thing i have ever tried to pollish up. .
Any ideas tricks on speeding this job up or it it just going to take foreever .

SOS pads work great on aluminum like that. They will leave a near original finish. Some elbow grease required. Clean the engine with GUNK Engine degreaser first.
__________________
Regards
Fritzcoinc
96 XR650L, 96 Guzzi Sport, 07 BMW K1200GT,
86 Husky 400 XCE, 00 Husky Te 610 e, 1999 Husky TC610 SM, 2000 Cagiva GC; Google: TX7
fritzcoinc is offline   Reply With Quote
Old 12-19-2014, 04:09 PM   #3
Langanobob
Gnarly Adventurer
 
Joined: Dec 2006
Location: Reno
Oddometer: 240
Matty, we need to see pictures, not just the aluminum rocker cover, the whole project car.

Bob
Langanobob is offline   Reply With Quote
Old 12-19-2014, 04:57 PM   #4
74C5
Studly Adventurer
 
74C5's Avatar
 
Joined: Aug 2008
Location: El Dorado Hills, CA
Oddometer: 926
You're trading effort against ease. The easy way is to take the parts to a powder coater and have them clear coated. They'll soda CO2 or otherwise grit blast and clean/polish. Then coat with clear. Done and done but, you wallet will be lighter.
You could also have them powder coat in a metal finish as well that will be much more durable than original.
__________________
R1200RT (R1100RT gone)
KLR650 - gone
Don't be the guy who needs to pee on the fence to figure out that it's electrified.
74C5 is offline   Reply With Quote
Old 12-19-2014, 05:07 PM   #5
Unstable Rider
Sick Till Tuesday
 
Unstable Rider's Avatar
 
Joined: Jul 2010
Oddometer: 2,478
Well stated by 74C,

I recently had some aluminum wheels and a swing arm blasted and powder coated (black). They also did some form of chemical dip/rinse prep too.

I was surprised to see as I was popping off stick on wheel weights that what I had thought were "natural aluminum" wheels were really coated with some fine silver metallic finish from Kawasaki, as 74C stated, it would be easier to maintain than real bare aluminum.
__________________
.
-“Ah, you're wasting you're time. They can't track us over rocks.
Tell them that.......... --Who are those guys?”


~Butch Cassidy
Unstable Rider is offline   Reply With Quote
Old 12-19-2014, 05:30 PM   #6
Langanobob
Gnarly Adventurer
 
Joined: Dec 2006
Location: Reno
Oddometer: 240
I'm probably too old school for my own good but I really prefer the looks of uncoated polished aluminum. High maintenance, yes, but a part like a rocker doesn't have a lot of area.

I'd run it up against a buffing wheel with the appropriate buffing compound and only do the inaccessible corners and crevices by hand.

Bob
Langanobob is offline   Reply With Quote
Old 12-21-2014, 11:33 AM   #7
kantuckid
Beastly Adventurer
 
Joined: Nov 2007
Location: Kentucky-Eastern that is!
Oddometer: 2,865
steam cleaned in UK?
__________________
"If I had my life to live over,I'd dare to make more mistakes next time...I'd relax,I'd limber up.I'd be sillier than this trip, take fewer things seriously, I would take more chances... take more trips...climb more mountains...swim more rivers...eat more ice cream." Jorge Luis Borges, at age 85
kantuckid is offline   Reply With Quote
Old 12-21-2014, 02:28 PM   #8
henrymartin
Mr. Tourguide
 
henrymartin's Avatar
 
Joined: Sep 2010
Location: South of the Great North Woods
Oddometer: 3,481
Soda blasting if you just want it clean. No need for an expensive blaster either. An air compressor, a duster gun, and a length of vinyl hose will do the trick. Just make a small slit in the tube about 2" from the end, insert your duster, and dip the other end of the house in a box of baking soda. Works amazingly well, at about 80 PSI or higher. I do old carbs like that.

To polish - follow by Mother's Mag Polish if you just want it shiny. If you want mirror shine, use some 400, then 600 grit wet sandpaper (keep it wet), followed by Mag polish.
henrymartin is offline   Reply With Quote
Old 12-22-2014, 07:55 AM   #9
Grimreaper7
Gnarly Adventurer
 
Grimreaper7's Avatar
 
Joined: Jun 2011
Location: North East England
Oddometer: 187
Another for soda blasting, I bought the grit blaster kit from Machine Mart here
Sleeve the pickup tube down to about 4mm or else you'll regret it.
Buy 50kg bags of bicarbonate of soda from local farm feeds supply store. (£12-£15)
Sieve the bicarbonate into the hopper to remove lumps, and get the air feed as dry as you can.
Blast away OUTDOORS! Wash off with warm water afterwards.
I rebuilt an engine last winter and cleaned up everything with it, the piston tops came up so clean you could see the machining marks on them 10 years later.
Cylinder head as clean as the day it was ported, gearbox, clutch bell housing and engine blocks too (clear coated afterwards to keep them that way).
Grimreaper7 is offline   Reply With Quote
Old 12-24-2014, 11:48 PM   #10
Baroquenride
Studly Adventurer
 
Joined: Apr 2011
Location: Clark Co, WA
Oddometer: 694
Vapor blasting will make the aluminum look brand new and actually closes the pores making it impermeable to grease and dirt stains.
__________________
2000 Honda VFR800, 2008 Husqvarna TE-610
Baroquenride is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
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

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 12:34 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014