W-30 Intake Restoration
February 2nd, 2019, 12:06 PM
#1
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Join Date: Jan 2018
Location: Millersport
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W-30 Intake Restoration
I have taken a 1970 W-30 cast aluminum Intake off of a parts car, which was not a W-30. It needs cleaned up before i post here for sale. Its definitely an original. Casting date of 12-15-69. It has rust residue where the mounting bolts are.
Should I drop it in a rust removal bath or will that damage it? is there a better way to clean the cast aluminum.
I will be looking to trade it, plus $$ for a 7040253 Carb.
Should I drop it in a rust removal bath or will that damage it? is there a better way to clean the cast aluminum.
I will be looking to trade it, plus $$ for a 7040253 Carb.
February 2nd, 2019, 08:27 PM
#8
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Join Date: Sep 2017
Location: St. Paul Minnesota
Posts: 4,010
Explain what this "Wheelabration" process is, please.
I think I would vapor blast or blast with glass beads at 40 PSI or less. I don't think walnut shells will work, but you could try it.
I think I would vapor blast or blast with glass beads at 40 PSI or less. I don't think walnut shells will work, but you could try it.
February 3rd, 2019, 02:51 AM
#9
Shoveling Snow
Join Date: Aug 2008
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February 3rd, 2019, 06:44 AM
#10
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Location: St. Paul Minnesota
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I would still go with glass beads at 40 PSI or less. This would help to maintain the original surface texture.
February 27th, 2019, 07:27 PM
#15
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Location: Austin, Texas
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February 28th, 2019, 08:43 AM
#18
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Join Date: Oct 2015
Location: Cincinnati, Ohio
Posts: 512
I spoke to my engine builder about this a while back. He said they have dip tanks specific to cast aluminum they use to cleanup aluminum manifolds. He said they come out very nice. Not sure what they use, but I can find out.
July 19th, 2019, 04:23 PM
#21
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Join Date: Jan 2009
Location: USA Ohio
Posts: 710
I have taken a 1970 W-30 cast aluminum Intake off of a parts car, which was not a W-30. It needs cleaned up before i post here for sale. Its definitely an original. Casting date of 12-15-69. It has rust residue where the mounting bolts are.
Should I drop it in a rust removal bath or will that damage it? is there a better way to clean the cast aluminum.
I will be looking to trade it, plus $$ for a 7040253 Carb.
Should I drop it in a rust removal bath or will that damage it? is there a better way to clean the cast aluminum.
I will be looking to trade it, plus $$ for a 7040253 Carb.
I must say that finish on 35olds' manifold looks excellent in the pics. Observe the Winters foundry snowflake on the finished manifold and see how the detail remains sharp and I will bet in high relief when felt with a smooth finger. That snowflake is the easiest and most vulnerable way to tell if a GM manifold has been subjected to blasting, ruining it's value as a restoration piece. I never heard of vapor blasting before this but I'm gonna find out. Wonderful looking as cast and pickled surface appearance in the pic. Want to examine the results in person now, thanks to 35olds for sharing those views.
July 19th, 2019, 06:16 PM
#22
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Join Date: May 2008
Location: SE MI
Posts: 328
I agree, if I were purchasing this I would want the opportunity to restore it my way. Chances are you won't be able to recoup your restoration cost in the sale price. Save yourself the trouble and sell it as is.
Why not try trading or selling it first just as it is. Experience has taught me any interested buyer with experience wont pay or trade for a sellers clean-up in anticipation of a sale, and you might lessen your chances of a nice deal. This is one area we who love Oldsmobile might learn a lot from the Corvette restorers: blast cabinets with any common media ruins aluminum parts where a original finish and feel is crucial to a end result. Really rare parts are still commonly ruined for collectors and high-points restorers by careless treatment this way. Procedures, some top secret have been developed by shops to restore a as cast finish to modern aluminum parts. Think of Corvette aluminum fuel injection manifolds being blasted still greasy in the hobbyist garage blast cabinet with glass beads, ouch and ---$$$$.
I must say that finish on 35olds' manifold looks excellent in the pics. Observe the Winters foundry snowflake on the finished manifold and see how the detail remains sharp and I will bet in high relief when felt with a smooth finger. That snowflake is the easiest and most vulnerable way to tell if a GM manifold has been subjected to blasting, ruining it's value as a restoration piece. I never heard of vapor blasting before this but I'm gonna find out. Wonderful looking as cast and pickled surface appearance in the pic. Want to examine the results in person now, thanks to 35olds for sharing those views.
I must say that finish on 35olds' manifold looks excellent in the pics. Observe the Winters foundry snowflake on the finished manifold and see how the detail remains sharp and I will bet in high relief when felt with a smooth finger. That snowflake is the easiest and most vulnerable way to tell if a GM manifold has been subjected to blasting, ruining it's value as a restoration piece. I never heard of vapor blasting before this but I'm gonna find out. Wonderful looking as cast and pickled surface appearance in the pic. Want to examine the results in person now, thanks to 35olds for sharing those views.
July 19th, 2019, 06:52 PM
#23
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Join Date: Apr 2014
Posts: 402
Why not try trading or selling it first just as it is. Experience has taught me any interested buyer with experience wont pay or trade for a sellers clean-up in anticipation of a sale, and you might lessen your chances of a nice deal. This is one area we who love Oldsmobile might learn a lot from the Corvette restorers: blast cabinets with any common media ruins aluminum parts where a original finish and feel is crucial to a end result. Really rare parts are still commonly ruined for collectors and high-points restorers by careless treatment this way. Procedures, some top secret have been developed by shops to restore a as cast finish to modern aluminum parts. Think of Corvette aluminum fuel injection manifolds being blasted still greasy in the hobbyist garage blast cabinet with glass beads, ouch and ---$$$$.
I must say that finish on 35olds' manifold looks excellent in the pics. Observe the Winters foundry snowflake on the finished manifold and see how the detail remains sharp and I will bet in high relief when felt with a smooth finger. That snowflake is the easiest and most vulnerable way to tell if a GM manifold has been subjected to blasting, ruining it's value as a restoration piece. I never heard of vapor blasting before this but I'm gonna find out. Wonderful looking as cast and pickled surface appearance in the pic. Want to examine the results in person now, thanks to 35olds for sharing those views.
I must say that finish on 35olds' manifold looks excellent in the pics. Observe the Winters foundry snowflake on the finished manifold and see how the detail remains sharp and I will bet in high relief when felt with a smooth finger. That snowflake is the easiest and most vulnerable way to tell if a GM manifold has been subjected to blasting, ruining it's value as a restoration piece. I never heard of vapor blasting before this but I'm gonna find out. Wonderful looking as cast and pickled surface appearance in the pic. Want to examine the results in person now, thanks to 35olds for sharing those views.
https://www.vaporblastingequipment.c...asting-process
July 20th, 2019, 05:31 AM
#25
1972 Cutlass Town Sedan
Join Date: Jun 2018
Location: SW Ont
Posts: 563
Vapor blast is just called a wet blast in the industry, many chemical plants like this method of blasting due to the fact its dustless, because alot of the old coating still have lead paint, keep in mind since water is used with crushed glass that steel will rose bloom or (flash rust) you can use a product with the water and glass called holdtight that will prevent the rusting process for a few days so you can paint..I would prefer to use aluminum oxide(soda) to blast, its dry and leaves very little profile and cleans up metal beautifully. Or think about using wallnut shells to blast or even dry ice..
Last edited by skyhigh; July 20th, 2019 at 05:35 AM.
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