|
|
Post by jerseyhighlander on Nov 11, 2017 1:23:47 GMT -5
Curious what other people are using for a long term soak to clean out carburetors prior to a rebuild. Been a long time since I've had a dedicated parts washer easily available but these little little 2-cycle carbs are pretty easy to soak in a small jar.
I've used a homemade solution of equal parts pure Turpentine/acetone/methanol as it really cuts the varnish from degraded gasoline but noticed the solution turned pretty green after the first use so was concerned it might degrade the brass parts. I followed it with a solution of pure white gas, essentially Naptha. Works well, carbs were spotless.
|
|
|
|
Post by sweepleader on Nov 11, 2017 7:51:58 GMT -5
I think you interpretation of the green is correct. Methanol is indeed corrosive to brass. I just use standard spray can carb cleaner and make certain it goes through all the holes. Then I dry with compressed air and do it again. I have not hit one plugged except by ethanol gas. Sometimes that comes out, sometimes not. The tiny screen some carbs have under a welch plug is the usual area of trouble. The screen comes in kits so I just replace it. I am really not sure why they put that screen in there, ethanol is the only thing that it seems to catch. I suspect that anything that has gotten that far would continue right on through.
|
|
|
|
Post by tjthechainsawmech on Nov 13, 2017 0:20:22 GMT -5
Same here with carb cleaner. Non-chlorinated brake cleaner works really well to. If you use the little red straw that comes with the can you can get into all the holes and blast the crap right out.
|
|
|
|
Post by dieseltech on Nov 13, 2017 23:00:09 GMT -5
CRC brake clean works good dries quick and doesn't have a strong odor
|
|
|
|
Post by jerseyhighlander on Nov 18, 2017 0:54:59 GMT -5
Especially with older saws that may have sat for years with gas in them, the varnish can be pretty thick & hard, not wanting to come out so easily with just the spray can. I like to let them soak overnight in something that cuts the varnish. I bought a machine years ago, it was like mostly dried polyurethane in the gas tank. Had to take it out with a screwdriver.
|
|
|
|
Post by sweepleader on Nov 18, 2017 6:16:02 GMT -5
I fixed a Briggs and Stratton that was like that. It had a dip tube in the tank that was pressed into the carb. The varnish was so tough it pulled that tube out of the carb when I took it appart. I chopped a hole in the varnish and got it running. Nasty stuff.
|
|
|
|
Post by fossil on Nov 28, 2017 21:20:00 GMT -5
Sea Foam. I take the carbs apart and soak them in Sea Foam over night. I recycle the stuff by filtering it through a coffee filter in a funnel.
I find it especially effective on HS carbs
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 19, 2017 16:48:27 GMT -5
Sea Foam. I take the carbs apart and soak them in Sea Foam over night. I recycle the stuff by filtering it through a coffee filter in a funnel. I find it especially effective on HS carbs You can use Naptha instead of Seafoam, virtually the same thing except Seafoam is 6-7 dollars for 8 ounces and Naptha is about 15 dollars for a gallon, also acetone 50-50 with ATF is better than most PB blaster and kroil oil solutions for a lot less money |
|
|
|
Post by stillsawing on Dec 19, 2017 22:06:22 GMT -5
While we are on the subject of fuel/carb, how do you pros remove the welch plugs? So far I have rebuilt without having to do just that, until now. Have no lo speed adjustability/lacks fuel, with a SDC, XL-12.
|
|
|
|
Post by jerseyhighlander on Dec 19, 2017 22:34:41 GMT -5
While we are on the subject of fuel/carb, how do you pros remove the welch plugs? So far I have rebuilt without having to do just that, until now. Have no lo speed adjustability/lacks fuel, with a SDC, XL-12. I use an old nail set that I ground & sharpened like a tiny tapered chisel. I just set the blade in the center of the plug and hit it down on an angle. It should bite in and puncture the plug, then if they haven't come out already, just pry downward and they pop right out. |
|
|
|
Post by jerseyhighlander on Dec 19, 2017 22:47:35 GMT -5
Sea Foam. I take the carbs apart and soak them in Sea Foam over night. I recycle the stuff by filtering it through a coffee filter in a funnel. I find it especially effective on HS carbs You can use Naptha instead of Seafoam, virtually the same thing except Seafoam is 6-7 dollars for 8 ounces and Naptha is about 15 dollars for a gallon, also acetone 50-50 with ATF is better than most PB blaster and kroil oil solutions for a lot less money Naptha=Coleman fuel=white gas=Stoddard solvent (give or take a carbon atom). I've always got a few gallons of white gas/coleman fuel around so that is easy for me. In fact it cleans so well, I've had to put a drop of oil in the throttle and choke butterfly shaft afterwards. Gonna haft to try that acetone/atf thing but I don't know if I will be able to admit it's as good as Kroil. It is pricey but it beats everything else I've ever used. |
|
|
|
Post by stillsawing on Dec 19, 2017 22:49:15 GMT -5
Thanks for sharing, will give it a try.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Dec 19, 2017 22:55:50 GMT -5
You can use Naptha instead of Seafoam, virtually the same thing except Seafoam is 6-7 dollars for 8 ounces and Naptha is about 15 dollars for a gallon, also acetone 50-50 with ATF is better than most PB blaster and kroil oil solutions for a lot less money Naptha=Coleman fuel=white gas=Stoddard solvent (give or take a carbon atom). I've always got a few gallons of white gas/coleman fuel around so that is easy for me. In fact it cleans so well, I've had to put a drop of oil in the throttle and choke butterfly shaft afterwards. Gonna haft to try that acetone/atf thing but I don't know if I will be able to admit it's as good as Kroil. It is pricey but it beats everything else I've ever used. I think you might be impressed with the Acetone/ATF. I use naptha for a paint thinner when spraying in conjunction with a poly converter for hardness and color retention, it's a hotter thinner and allows a smoother finish to be sprayed with less chance for runs and doesn't break down the paint as much as xylene, you get a time for the paint to flow and melt, but not to run. We don't have many stores that regularly stock Coleman fuel or white gas, its still in the mid 60s here, but most big box stores do stock Naptha and Acetone i quarts and gallons. Kerosene is 25 dollars a 5 gallon bucket at my fleet oil store, but 40.00 a five gallon bucket at most farm and ranch stores and regular gas is still close to 2.00 a gallon. |
|
