I've been trying to polish the fins on my intake manifold, i got it looking decent, went from a 60,150, 220,300,400,600,800, 1000 grit. I was using a black & decker flat sander going back and forth with it. After that i got the new dremel i bought, put the polising wheel on and made it look decent (i wanted mirror, dont know what i did wrong). I have small pits all over the fins, why? how do i get rid of them? Any ideas, comments, or suggestions welcomed.

 

I used 220 on my air DA sander & it took all my pits out then I wetsanded with a 1000 then a 1200 then buffed it out & mine are glass / Mirrior finish


JOSH

 

Just did what you did, no go, still pits....anything/anyone else?

 

If you are tired of scrubbing at them, you can stick a chrome decal on there

http://www.f-bodyvinyl.com/intakefins.jpg

 

thanks brent hahaha, any ideas anyone?

 

Well what I think you did and hope you didn't do is go too far and have all the casting air bubbles visable now.

 

Your prob right with the air bubbles thing, ack....what is the PROPER step do doing this? thank god this was a spare intake manifold....I am gonna get my REAL intake manifold back from the powder coater (making it a metallic green). What are the steps, how do I do it, and MORE importantly, HOW LONG DO I HOLD THAT SANDER ON THERE GOING BACK AND FORTH :-D I have the following items:

60,180,220,400,600,800,1000,1500,2000 grit sand paper
Black & Decker eletric flat sander (used those rectangle sand paper pieces)
BRAND NEW dremel with all the fixings
Never Dull
Blue Magic Metal Polish
Spray bottle w/ water

I know i have all the right stuff, just tell me what I have to do, the steps, and how long, and weather or not to use water haha....

 

Actually, I'm being serious in case you think I wasn't. That's a picture of an intake with chrome decals that I made for it

 

no thanks Brent, lol, i want it real :-)

 

Gotcha It just seemed like you might have thought I was joking

 

So...anyone with any suggestions?

 

I just did mine like 2 weeks ago with the DA air sander I just sanded it until it was smooth & the little ridges were gone , then wet sanded & polished came out perfect !

JOSH

 

with the 60 grit you most likely took off too much material. he roughest you should use is 220. Just sand as much as needed to get the machined marks out.

 

ok ill start with 220 or 300, should i be sprayign water on it as I sand with my machine? on my REAL intake manifold i plan to do 300,400,600,800,1000,1500, and then 2000....followed by some never dull, and then polish with blue magic with a dremel...when i was playing around with it i saw that using water left less marks....good or no?

 

http://www.gmtips.com/3rd-degree/dox...m/pol-plen.htm

http://www.caswellplating.com/buffs/...b7755b6272bb8a

http://groups.msn.com/Camaro2001SS/polishinghowto.msnw

http://performanceworks1.com/polishing_and_buffing.htm