Topic: powdercoating carbs

[Bodi]

The "nylon" bit would be on the side of the slide bore. Look at a slide, there's a groove up one side. In the bore is a nub that engages that groove. It's on one side of two carbs and the other side of the other two... so you can install two or all four slides backwards... but that's another story.
Most carbs I've worked on have plastic nubs, some have brass. I don't know what yours have but for sure there is something in there or the slides would spin around - and they have to face the right way for the cutout to point towards fresh air.

[bollingball]

http://www.hondachopper.com/garage/carb_info/accelpump_valve_repair/page1.html Go here I don't think that is brass but discolored from gas.

[millerza]

didnt think of discoloration

[millerza]

K i know what your talkin bout on the nylon, I was worried there was something nylon on the body. for heat reasons.

thanks bollingball, knew I had seen that before but couldnt remember where. That will help all around

[bollingball]

millerza look through that site in the garage section lots of good info. hate to see you mess up a hard to find part

[dave500]

ive used vht engine paint on a couple of engines,ive had fuel spills on these and washed them with degreaser etc and after three years its holding up well,maybe spraying them with this stuff?ive painted the bowls and top covers on a set of type ones recently with this stuff ,ive run them on an engine not in a frame,i think it would be ok on carb bodies.,good prep first of course.

[Freaky1]

Somewhat off subject but the allen bolt kit from stainless cycle, are they stainless? If so rust should not be a problem.

[millerza]

yes allens from stainless cycle are stainless, the ones in pic are hardware store bought before i knew of stainless cycle. I rebuilt the carbs polished them and put these on. After sitting on shelf I didnt like how polish lasted(no clear or anything) and these allens rusted(a little) Theyve been blasted and i figured theyd work to protect threads from powder.

However the nylon retainers we talked about are not nylon in my aceel pump, I looked and looked then scratched them they are brass. Is this OE for "some" carbs or is this PO doings?

[roadkng48]

anytime you use stainless hardware with aluminum parts you need to use a protectant (anti-seize) on the threads or you will have electrolysis which will corrode the stainless and also cause them to seize up in the ho;es.

[bollingball]

Mill no telling after all these years. Mine was still is plastic or nylon,hard as a rock maybe to be safe with yours just leave that part out of the heat you can't see it that much. I'm a little lazy and just pretty up one and four. As far as the powdercoat I like the idea let me know how it turns out. I was thinking gun metal grey mite look nice. different strokes for different folks.
                  Roadkng you stay in a house boat 

[millerza]

I pulled both check valves out pretty easy even with the brass. The one in the accel pump cap was froze up pretty good, both rusty. Got them apart without losing anything. Now I have to clean the gunk out of the seat.

[millerza]

So I wanted to post some pics of 1 of my powder coated carbs

I didnt want the polished look, just a nice color with low upkeep. This is silver something or other, before clear coat. Did it myself too.

[Freaky1]

Looks nice, did you go with one of the allen bolt kits? I thought about it but I like the pan screw head look so I just went and picked some up.

[736cc]

If you want your carbs to look like new w/ their subtle pearlescent sheen again, soak them in straight Super Green overnight and your eyeballs will pop out from how nice they become.
Powder-coating carbs is not a good idea unless they are for a showbike that never runs because they have the possibility of becoming ruined.

[Bankerdanny]

No high temps, but obviously it would be in every orifice of the carb.

Not sure but don't electroplating processes stay out of holes unless there is an anode in it?

The entire carb body is metal. Once the electrode is attached to the body of the carb, the powder will be attracted to every part, not just the exterior. You would need to make sure that EVERY hole is properly sealed to ensure that no powder finds it's way in.

[millerza]

So... I can only show you what it looks like because I havent got the bike back together.

But I can tell you with the carb internals removed, the body reassembled and all holes covered that Im 99% sure I covered every possible entry. And 100% sure that not enough powder to cause ANY problems could have got in. Doing this process myself I was able to be meticulous and if you dont know much about PCing you would be suprised how little powder is used and how little time it takes. Per carb, I know I used less than 2 ounces, that is shooting to waste. Meaning anything that doesnt stick is just swept into the trash, so the carb "might" have an ounce of powder on it. About 10 seconds of shooting per carb, plus a 12 minute cook at 400F. Possibly the heat might cause functioning problems, however the internals all fit well, slide included.

I forgot I was originally asking about problems from PCing and have resorted to defending PCing after having done it.Sorry,  Anyway heres another pic

[Hannibal Smith]

Well, now we know it can be done!

But........You did a proper job, and as with anything, especially carb bodies, it takes meticulous prep and excecution to pull it off, NOT something to trust to your local powdercoater.

I would say that this excercise is an example of planning and dedication, and definitely not a blanket "go ahead" that carb bodies can be powdercoated no problem, so send them along with your frame to "Honest Al's Powdercoat in Skookemchuck, Arkansas"

Good job!

[jvandyke]

Those look great and if I had the equipement I wouldn't hesitate to copy you.