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replicating cast finish on aluminum #1025684 07/04/11 11:52 AM 07/04/11 11:52 AM
Joined: Oct 2005 Posts: 8,902 Ontario, Canada S Stanton OP Don't question me!
Stanton OP Don't question me! S Joined: Oct 2005 Posts: 8,902 Ontario, Canada	I bought an Indy intake and compared to Eddy and other castings they look like crap so after grinding off the excess flash and other crud I'd like to replicate the pebbled "cast" finish in those areas. Sandblasting or shot peening hasn't really done it. Anyone got any other ideas?

Re: replicating cast finish on aluminum [Re: Stanton] #1025685 07/04/11 01:49 PM 07/04/11 01:49 PM
Joined: Oct 2005 Posts: 9,065 Milwaukee, WI In_The_Pink master
In_The_Pink master Joined: Oct 2005 Posts: 9,065 Milwaukee, WI	I want to say a member here did just what you're asking about, but I don't recall who it was. I think a specially ground tip on a punch or chisel was used in combination with a hammer.

Re: replicating cast finish on aluminum [Re: In_The_Pink] #1025686 07/04/11 01:55 PM 07/04/11 01:55 PM
Joined: Jan 2003 Posts: 42,714 Spokane Washington ScottSmith_Harms Mr Wizzard
ScottSmith_Harms Mr Wizzard Joined: Jan 2003 Posts: 42,714 Spokane Washington	Use a needle scaler

Re: replicating cast finish on aluminum [Re: Stanton] #1025687 07/04/11 04:27 PM 07/04/11 04:27 PM
Joined: May 2004 Posts: 12,410 Taxes & Virus's R-US, NY Dragula I Live Here
Dragula I Live Here Joined: May 2004 Posts: 12,410 Taxes & Virus's R-US, NY	Like this.....didn't get to the water pump yet. '70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft) https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car) https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car) https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9) '66 Barracuda AWB Stretched nose Blown 440 Car in build stage '71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph https://www.youtube.com/watch?v=Znuo3jMUXTk

Re: replicating cast finish on aluminum [Re: ScottSmith_Harms] #1025688 07/04/11 04:29 PM 07/04/11 04:29 PM
Joined: Oct 2005 Posts: 8,902 Ontario, Canada S Stanton OP Don't question me!
Stanton OP Don't question me! S Joined: Oct 2005 Posts: 8,902 Ontario, Canada	Quote: Use a needle scaler Do you know that this works? I've been thinking of that. A punch and hammer would take forever!

Re: replicating cast finish on aluminum [Re: Dragula] #1025689 07/04/11 04:31 PM 07/04/11 04:31 PM
Joined: Oct 2005 Posts: 8,902 Ontario, Canada S Stanton OP Don't question me!
Stanton OP Don't question me! S Joined: Oct 2005 Posts: 8,902 Ontario, Canada	Quote: Like this.....didn't get to the water pump yet. BEAUTIFUL !!! What did you do that with ??

Re: replicating cast finish on aluminum [Re: Stanton] #1025690 07/04/11 04:32 PM 07/04/11 04:32 PM
Joined: Jan 2003 Posts: 42,714 Spokane Washington ScottSmith_Harms Mr Wizzard
ScottSmith_Harms Mr Wizzard Joined: Jan 2003 Posts: 42,714 Spokane Washington	Yes, works fast and easy, just use a light touch as they can be pretty powerful tools and will dig in deep with aluminum if you allow it. Just practice on some junk parts first to see the results, you can pick one up at Harbor Frieght for about $20.00. They also work well to texture cast iron (to hide welds, etc.)

Re: replicating cast finish on aluminum [Re: ScottSmith_Harms] #1025691 07/04/11 07:41 PM 07/04/11 07:41 PM
Joined: Feb 2004 Posts: 7,196 Harrisburg, Pa. screamindriver master
screamindriver master Joined: Feb 2004 Posts: 7,196 Harrisburg, Pa.	Wow, that's a great tip Scott.. ..Never thought about using one for that purpose...If those pics show the end result I'm definitely giving it a try....

Re: replicating cast finish on aluminum [Re: screamindriver] #1025692 07/04/11 07:50 PM 07/04/11 07:50 PM
Joined: Jan 2003 Posts: 20,865 A collage of whims topside Too Many Posts
topside Too Many Posts Joined: Jan 2003 Posts: 20,865 A collage of whims	Timely post: I want to remove some Edelbrock lettering from an intake. What the heck does a needle scaler look like?

Re: replicating cast finish on aluminum [Re: topside] #1025693 07/04/11 08:05 PM 07/04/11 08:05 PM
Joined: Oct 2005 Posts: 8,902 Ontario, Canada S Stanton OP Don't question me!
Stanton OP Don't question me! S Joined: Oct 2005 Posts: 8,902 Ontario, Canada	Looks like this ... http://www.harborfreight.com/air-tools/specialty-air-tools/compact-air-needle-scaler-96997.html

Re: replicating cast finish on aluminum [Re: topside] #1025694 07/04/11 08:25 PM 07/04/11 08:25 PM
Joined: Apr 2010 Posts: 10,570 Sunny South Florida Golden-Arm I Live Here
Golden-Arm I Live Here Joined: Apr 2010 Posts: 10,570 Sunny South Florida	file that off, or use a dremel with a roll sand paper grinder on it, then add the texture to it. "When Tyranny Becomes Law, Rebellion Becomes Duty"

Re: replicating cast finish on aluminum [Re: Stanton] #1025695 07/04/11 11:54 PM 07/04/11 11:54 PM
Joined: May 2004 Posts: 12,410 Taxes & Virus's R-US, NY Dragula I Live Here
Dragula I Live Here Joined: May 2004 Posts: 12,410 Taxes & Virus's R-US, NY	Quote: Quote: Like this.....didn't get to the water pump yet. BEAUTIFUL !!! What did you do that with ?? I started by grinding off all the logo and part numbers and anything that was on the intake I was never going to use. The glass beaded it at 70psi, primered it with Walmart grey primer was $1.98/can and then used a light misting of Mopar Argent Silver wheel paint $10/can. Comes out just like cast aluminum that was just cleaned. Holds up to fuel and oil pretty well too. You can see where I taped off the master cylinder and got a little over spray on it. Last edited by Dragula; 07/04/11 11:55 PM. '70 Cuda,...605 EFI Hemi Street Car (6.20 best pass, 1.33 60ft) https://www.youtube.com/watch?v=WYw6RA-k5Bk (6.25 at 108.75mph from inside car) https://www.youtube.com/watch?v=3zQEb9uxFng (6.25 at 108mph from outside car) https://www.youtube.com/watch?v=JCvfzsC4NgM (9.9) '66 Barracuda AWB Stretched nose Blown 440 Car in build stage '71 Duster Drag Car 400 Low Deck 512 best 6.002 at 115.44mph https://www.youtube.com/watch?v=Znuo3jMUXTk

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