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Porting burrs #2836748
10/23/20 08:33 PM
10/23/20 08:33 PM
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Washington
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hemienvy Offline OP
mopar
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Washington
Where are you guys getting grinding burrs for porting aluminum ?

Re: Porting burrs [Re: hemienvy] #2836756
10/23/20 09:17 PM
10/23/20 09:17 PM
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Bend,OR USA
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Cab_Burge Offline
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Snap On, Eastern tools and maybe Northern tools and several others I can't think of right now whiney
Aircraft Spruce and maybe Chief Aircraft supply in Grants Pass, OR if they are still open scope


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Porting burrs [Re: Cab_Burge] #2836767
10/23/20 09:42 PM
10/23/20 09:42 PM
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South Bend
John Brown Offline
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Just slightly off subject, but I found that BLASTER spray helps keep the aluminum from sticking to the burr when porting or reshaping aluminum on heads or manifolds.


July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.
Re: Porting burrs [Re: John Brown] #2836779
10/23/20 10:08 PM
10/23/20 10:08 PM
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CA
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crackedback Offline
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mcmaster carr

burrs4less

msc industrial

Agree on dipping the burr in pb blaster, wd40, something to help keep your tools from loading up.

Last edited by crackedback; 10/23/20 10:09 PM.
Re: Porting burrs [Re: crackedback] #2836803
10/24/20 01:05 AM
10/24/20 01:05 AM
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Bend,OR USA
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I use candle wax, rub the burr in it before starting and again later when it is warmed up every 20 to 40 minutes up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Porting burrs [Re: hemienvy] #2836948
10/24/20 01:59 PM
10/24/20 01:59 PM
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SoCal
ou812 Offline
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Originally Posted by hemienvy
Where are you guys getting grinding burrs for porting aluminum ?


http://www.ruffstuff.com/pages/carbide.html


Brian Hafliger
Re: Porting burrs [Re: hemienvy] #2837200
10/25/20 08:53 AM
10/25/20 08:53 AM
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Wisconsin
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Medlock51 Offline
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Wisconsin
eBay...

Re: Porting burrs [Re: Medlock51] #2837379
10/25/20 06:01 PM
10/25/20 06:01 PM
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PA
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Re: Porting burrs [Re: Scully] #2837404
10/25/20 08:21 PM
10/25/20 08:21 PM
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Ontario, Canada
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Stanton Offline
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I've had good luck with the ones that the tool vendors at swap meets sell. You know - the guys with 20 tables with tool that run from $1 up. At big meets there'll be four or five of those guys spread out around the event.Get yourself a couple different shapes and get both short and long ones. For aluminum you want the coarse bits.

Re: Porting burrs [Re: Stanton] #2837477
10/26/20 06:36 AM
10/26/20 06:36 AM
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MI, Lapeer
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maximus Offline
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Most tool supplies carry them. Northern Tool Supply, Production Tool Supply, ABC Machinery. Places that sell tools and machinery will carry them. Search them on line. Don't use the fine cutters they load up easily with aluminum, I believe I use 8 flute cutters then toosie roll sanding pads of various grit.

Re: Porting burrs [Re: Stanton] #2837553
10/26/20 12:18 PM
10/26/20 12:18 PM
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north of coder
moparx Offline
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Originally Posted by Stanton
I've had good luck with the ones that the tool vendors at swap meets sell. You know - the guys with 20 tables with tool that run from $1 up. At big meets there'll be four or five of those guys spread out around the event.Get yourself a couple different shapes and get both short and long ones. For aluminum you want the coarse bits.



same here ! ^^^^ i use the carbide coarse flute style for aluminum.
beer

Re: Porting burrs [Re: moparx] #2837557
10/26/20 12:31 PM
10/26/20 12:31 PM
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Washington
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hemienvy Offline OP
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Alright, thanks guys. I figured some of these cutters were better than others, better steel.
Also want USA made, not china.

Re: Porting burrs [Re: ou812] #2837997
10/27/20 01:07 PM
10/27/20 01:07 PM
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Idaho
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LaRoy Engines Offline
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Idaho
Originally Posted by ou812
Originally Posted by hemienvy
Where are you guys getting grinding burrs for porting aluminum ?


http://www.ruffstuff.com/pages/carbide.html
Same here. Just ordered more yesterday.

Re: Porting burrs [Re: hemienvy] #2838614
10/29/20 03:01 AM
10/29/20 03:01 AM
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Wisconsin
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Medlock51 Offline
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Good luck...many may offer domestic burrs but how can you tell? I prefer US sourced stuff, too.

Re: Porting burrs [Re: hemienvy] #2838635
10/29/20 06:53 AM
10/29/20 06:53 AM
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Irving, TX
feets Offline
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WD40 is one of the best lubricants for cutting aluminum. I use it on my mill and lathe. You want the coarse bits so there's room to clear the chips in front of the cutting edge.


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Re: Porting burrs [Re: feets] #2838642
10/29/20 07:31 AM
10/29/20 07:31 AM
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PA.
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You guys and your coarse burrs kill me. I port a lot of heads and rarely use an aluminum coarse cut burr. I mainly use double cut burrs dipped in a WD40 transmission fluid mixture. An aluminum burr cuts, bounces, gouges, and digs compared to a double cut burr. When I’m done honestly I rarely even use a sanding roll on my stuff. Customers like to see smooth and shiny so I may buff their stuff up some. Slow the grinder down to a speed you can handle and grind away


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Re: Porting burrs [Re: pittsburghracer] #2838643
10/29/20 07:37 AM
10/29/20 07:37 AM
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Marion, South Carolina [><]
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Originally Posted by pittsburghracer


You guys and your coarse burrs kill me. I port a lot of heads and rarely use an aluminum coarse cut burr. I mainly use double cut burrs dipped in a WD40 transmission fluid mixture. An aluminum burr cuts, bounces, gouges, and digs compared to a double cut burr. When I’m done honestly I rarely even use a sanding roll on my stuff. Customers like to see smooth and shiny so I may buff their stuff up some. Slow the grinder down to a speed you can handle and grind away

iagree I'm no pro porter by any means, but I do some whittling on my own stuff. The aluminum cutting burrs are very aggressive and definitely more prone to bounce and gouge from my experience. I only use them when I'm removing a lot of material...like taking the cloverleaf out of a 4500 flange intake. Once the big stuff is gone, I go to the cast iron type burrs. As long as you keep it lubed, it works fine.


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Re: Porting burrs [Re: an8sec70cuda] #2838717
10/29/20 10:55 AM
10/29/20 10:55 AM
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Utah and Alaska
astjp2 Offline
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Boelube works excellent for preventing buildup also.


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Re: Porting burrs [Re: pittsburghracer] #2839292
10/30/20 12:33 PM
10/30/20 12:33 PM
Joined: Sep 2003
Posts: 13,498
north of coder
moparx Offline
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Originally Posted by pittsburghracer


You guys and your coarse burrs kill me. I port a lot of heads and rarely use an aluminum coarse cut burr. I mainly use double cut burrs dipped in a WD40 transmission fluid mixture. An aluminum burr cuts, bounces, gouges, and digs compared to a double cut burr. Slow the grinder down to a speed you can handle and grind away



i use course bits all the time for roughing out, although you bring up a good point about slowing the grinder [air or electric] down.
my main fault is ASSuming guys know how to use a grinder.
finishing is always done with a fine burr, then sanding rolls if needed for the finish required.
castings differ from one kind/brand to another, and billet is different yet depending on composition.
your WD40/transmission fluid is a great lube, [i use that combo] and i have found bar soap and stick wax also work good in some instances.
i have also wanted to try a "gritty" type hand cleaner just to see what that would do, but i haven't got around to it.
if a guy hasn't worked with burrs before, it is best to practice on scrap first to see how they work for you, then proceed cautiously until you build up confidence in your work.
make absolutely sure your work piece is held solid by whatever means necessary. it is impossible for you to do any kind of acceptable work if you are chasing the piece around the work bench !
and as always, "practice makes perfect". some have the knack and can whittle away with little effort, while it takes others more time and effort.
remember guys, pittsburger does good work - he has been at it for a while, so listen to his advice. up
beer

Re: Porting burrs [Re: moparx] #2839308
10/30/20 12:57 PM
10/30/20 12:57 PM
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Posts: 1,320
South Bend
John Brown Offline
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Using a grinder to port heads or manifolds is sorta like shooting a gun. Sometimes two hands on the tool works a lot better than one.


July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.
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