Die Grinders for porting

[Anonymous]

Well played around with my electric die grinder for a few hours and I really like it, never have to wait for the aircompreser to catch up, much less stuff blowin around and a lot more torque.
Not to say I'm gonna pitch the air grinder, be handy for touch ups with a diffrent stone/burr. This is also m first expearence using burrs, when I did my pickups head I just used stones to pollish the chamber and from what I have seen I may stick with that to keep from removing to much.
Kinda limited on what I can do so far as the only burr I have is a 1/2 inch straight sided one. Did some nice work pocket porting on a junk 2.3 Mustang head. No luck narrowing the valve stem boss yet as I don't have the right burr, should be here next week.

 

[pmhvps]

If you get a double cut carbide burr "Be Careful". Goes like a Beaver through softwood!

 

[Anonymous]

Well the single cut removes metal plenty fast for me.
Shop instructer had a favorite saying.


Why is there never enough time to do it right but there always is to do it over?

Me, I'm not rich enough to afford do overs.

 

[Anonymous]

i enjoy my air die grinder, i haven't ever had a problem with the compressor keping up, 3hp, i use stones, they seem to work very well on the iron and don't take off metal too fast to control, i also use rasps for my aluminum work, they work very well, all i can say is never use a stone on aluminum, lol, if you do you will figure out why very quickly

 

[Anonymous]

Had a thought on safety.
My electric has a togle switch and its not easy to reach if I need to stop quick.
I'm thinkin making a foot switch cord that has to be held down for the grinder to run, if something went wrong my foot would naturally come up anyway and that would shut off the grinder.
Standard procedure would be to always use the regular switch.
Have I missed something or is there another way to protect me?
TIA kev

 

[Anonymous]

well, i always used two hands on mine, one on the grinder, one on the air hose, that is what i like more about the air ones, you just have to let up on that lever and it's shut off, i haven't even come close to slipping yet, so i don't think there is too much to worry about, that foot thing you are talking about I don't know how well thatd work for me as i usually just put my stuff on the ground and am bending down over it, that would only work if you were doing it on a table or something

 

[Anonymous]

I have some sawhorses I set a piece of plywood on, park my kiester on a empty Hy-Tran pail and have at it.

 

[Anonymous]

well, i think i have changed my view on this subject, i have used the air die grinder enough to be very annoyed by the slowdowns, i put a stone on my dremel and pressed as hard as i could and the thing wouldn't even slow down, i couldn't imagine what an electric die grinder would do, i think im going to have to try one out, no more dragging the 100lb compressor up the stairs, lol

 

[Anonymous]

Well. 2 to 3 good ones show up on ebay ever week, they go for bout half new if in good shape. Whole lotta blue/green imports listed but I have no idea if they are worth owning.

 

[Anonymous]

one of those variable speed makita's looks very nice too bad the price is over 200

 

[Anonymous]

There is a very good Makita for around $99. I think its the model 640 but I'm not sure. It's the one with the plastic body.
All ball bearings, no bushings.

John

 

[broncr]

I've been using Makita's for about ten years now. They are a fine tool and well worth the price. As it happens, I just saw my FIRST one burn out today - a 10+ year old 3/8 electric drill - abused almost daily. (Not by me...)

Makita & Milwaukee - two of the very best -IMHO.

Broncr

 

[Falcon62]

Pro-porters use frequently use an electric, foot controlled grinder made by Foredom. They cost significantly more than the 'consumer' units, but are well worth the money if you intend to do a lot of porting. They are easier to control rpm with over the air version, and you can dial in the speed you want. Much harder to do with an air grinder, unless you're really good at throttling it. Cutting air pressure back works, but then you lose the torque advantage of the air motor.

 

[FastRonald]

8) I prefer the air die grinder using hardened rotary files. This removes the major work very quickly...........then go to the sanding drums for the final clean up