StolenFox

Just picked up my 823's from having .030 milled off and these things are sharp! I'd like the deburr everything to make sure any little pc's of aluminum that are just barely hanging on don't get loose and to keep from cutting off a digit! Has anyone else done this and what tools and techniques did you use?

Thanks!

S.F.

A.R. Shale Targa

iTrader: (2)

Die grinder, air with pressure turned down or electric with a rheostat pedal and a cartridge roll for head polishing. Someone really patient with a steady hand could use a grinding stone or even a carbide porting bit (preferably dull) but almost inevitably the one "OH ****" becomes **** DAMN POOP.

StolenFox

The electric w/rheostat sounds like the ticket and I've got the equipment so good to go.

Thanks A.R.!

stevebbc

iTrader: (4)

Deburring is standard machine shop practice. I'd take them back and have the shop do it.

bobfig

a file?

KCS

iTrader: (20)

I use an air grinder and a small tapered burr.

Darth_V8r

iTrader: (4)

It takes 15 minutes at most per head with a fine file, and little to no risk of screwing up. I also de burr the valve cover seats on top of the heads as well, since those also tend to be sharp.

TT427

iTrader: (1)

Use a variable speed drill and a stone, or a porting burr. I use a DeWalt and you can go as slow as you need. They offer good control, for porting/cleanup you almost cant go too fast and with a quick cut burr IMO. Its what I will use on a set of 317 I will be throwing on my dd ls1 after a good mill/valve job.

usdmholden

I would just use a small fine tooth file.

farmington

iTrader: (14)

take it back to shop. they will have to be washed after deburring to clean the crap out of the water jackets.

.boB

iTrader: (1)

Not rocket science. You're just going over the sharp edges after the machining process. You're not going to be reshaping anything. Use a sanding roll in a drill motor and carefully go over the edges. For something simple like this, you can put a strip of sand paper in a cotter pin, and chuck the cotter pin into the drill motor. Or, you can just use some sand paper and go over the edges by hand.

As for cleaning, use hot water and some Dawn or Tide. I don't trust that job to a machine shop.

joecar

I use a sharpening stone by hand.

Krom

StolenFox

Thanks for the tips fellas! I ended up just using a small half-round detail file to smooth things out. Actually went very quickly and did a nice job.

S.F.