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Sandblasting manifolds... #67498 06/04/08 03:53 PM 06/04/08 03:53 PM
Joined: Jan 2003 Posts: 4,588 St. John's Newfoundland 440newport OP master
440newport OP master Joined: Jan 2003 Posts: 4,588 St. John's Newfoundland	This may be a dumb question but I have a couple of pairs of C body HP manifolds here I was gonna have sandblasted. 3 of them are pretty crusty but the mounting flange is still shiney and smooth. I assume the blasting won't harm or pit the flange area will it? Just somthing I was wondering about.

Re: Sandblasting manifolds... [Re: 440newport] #67499 06/04/08 04:16 PM 06/04/08 04:16 PM
Joined: Jan 2003 Posts: 21,085 Niles , Ohio T therocks oh wait.but hey.lets see.oh yeah.
therocks oh wait.but hey.lets see.oh yeah. T Joined: Jan 2003 Posts: 21,085 Niles , Ohio	Tape it off and bead blast them.Sand is real abrasive.Rocky Chrysler Firepower

Re: Sandblasting manifolds... [Re: therocks] #67500 06/04/08 04:27 PM 06/04/08 04:27 PM
Joined: Jan 2003 Posts: 4,588 St. John's Newfoundland 440newport OP master
440newport OP master Joined: Jan 2003 Posts: 4,588 St. John's Newfoundland	Is that what most people do, bead blast them? There's only one place in town that will bead blast stuff and I forget the exact price but it's expensive. I could get them sandblasted for probably $20.

Re: Sandblasting manifolds... [Re: 440newport] #67501 06/04/08 05:50 PM 06/04/08 05:50 PM
Joined: Apr 2005 Posts: 486 NJ SlimJim mopar addict
SlimJim mopar addict Joined: Apr 2005 Posts: 486 NJ	I had my HP manifolds sandblasted a couple of months ago. They turned out fine. No damage to them. $20 is a steal. I paid $80 for both.

Re: Sandblasting manifolds... [Re: SlimJim] #67502 06/04/08 06:12 PM 06/04/08 06:12 PM
Joined: Oct 2006 Posts: 7,371 Iowa burdar Owen's Dad
burdar Owen's Dad Joined: Oct 2006 Posts: 7,371 Iowa	A few years ago I bought a small bead blasting cabinet on line for $135. After I got it I found some bigger ones for less money. If you have a lot of stuff to blast I would recomend just buying a cheap cabinet. You can get the blasting media through a company like Eastwood. You'll save a lot of money in the long run doing it yourself.

Re: Sandblasting manifolds... [Re: 440newport] #67503 06/04/08 07:55 PM 06/04/08 07:55 PM
Joined: Oct 2005 Posts: 8,911 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,911 Ontario, Canada	Quote: Sand is real abrasive. And cast iron is real f***ing hard! Sandblast them. Anything else on rusty cast iron is like pissing on a forest fire. Taping the flanges with a couple layers of duct tape will save the machined surfaces. Don't skimp on tape, 5 layers will do more good than harm. Trim the excess around the flanges so the blasting doesn't have a big edge to catch and blow the tape off. Cut the openings out and tell the guy to shove the blasting nozzle down the ports to get rust and carbon buildup out of there too!

Re: Sandblasting manifolds... [Re: Stanton] #67504 06/04/08 08:03 PM 06/04/08 08:03 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	Quote: Quote: Sand is real abrasive. And cast iron is real f***ing hard! Sandblast them. Anything else on rusty cast iron is like pissing on a forest fire. Taping the flanges with a couple layers of duct tape will save the machined surfaces. Don't skimp on tape, 5 layers will do more good than harm. Trim the excess around the flanges so the blasting doesn't have a big edge to catch and blow the tape off. Cut the openings out and tell the guy to shove the blasting nozzle down the ports to get rust and carbon buildup out of there too! You want to use aluminum oxide on rusty cast iron manifolds. Bead blasting leave steh surface smoother, but it will take forever when used at the correct pressure.

Re: Sandblasting manifolds... [Re: 440newport] #67505 06/05/08 02:03 AM 06/05/08 02:03 AM
Joined: Mar 2008 Posts: 293 salem, oregon. usa E elmor enthusiast
elmor enthusiast E Joined: Mar 2008 Posts: 293 salem, oregon. usa	The machine shop I work for glass beads them, and they come out fine.

Re: Sandblasting manifolds... [Re: elmor] #67506 06/05/08 08:13 AM 06/05/08 08:13 AM
Joined: Aug 2005 Posts: 4,799 ILL M MLR426 master
MLR426 master M Joined: Aug 2005 Posts: 4,799 ILL	I would suggest to have the shop surface them as well Logan426

Re: Sandblasting manifolds... [Re: MLR426] #67507 06/05/08 12:42 PM 06/05/08 12:42 PM
Joined: Oct 2005 Posts: 8,911 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,911 Ontario, Canada	Quote: The machine shop I work for glass beads them, and they come out fine. And why not, time is money and as the saying goes, "there's a sucker born every minute". If I were some scumbag charging by the hour I'd bead blast them too! Sandblast 'em and GIT 'ER DONE !!!

Re: Sandblasting manifolds... [Re: Stanton] #67508 06/05/08 09:11 PM 06/05/08 09:11 PM
Joined: Mar 2008 Posts: 293 salem, oregon. usa E elmor enthusiast
elmor enthusiast E Joined: Mar 2008 Posts: 293 salem, oregon. usa	Anyone with half a brain and a properly functioning bead blast cabinet, should be able to get them clean in 15 minutes. If it takes any longer then that or they charge more than $40.00 for the pair, your getting hosed. I've done hundreds of manifolds, blocks, and heads, it ain't rocket science.

Re: Sandblasting manifolds... [Re: 440newport] #67509 06/05/08 09:57 PM 06/05/08 09:57 PM
Joined: Oct 2005 Posts: 8,911 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,911 Ontario, Canada	Sandblast them and leave the bead blasting for the people with half a brain.

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