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wd45 carb question |
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wdforty5 ![]() Silver Level ![]() Joined: 08 Sep 2011 Location: Illinois Points: 163 |
![]() ![]() ![]() ![]() ![]() Posted: 13 Nov 2011 at 9:27am |
After doing some discing yesterday I pulled the wd into the barn and shut her down. I turned off the gas and notcied gas dripping out from under the carb. It was leaking from the hole underneath the carb closest to you if you are standing looking at the tractor from the side. I see there is another bolt in the back and I unscrewed it to find what I assume was the float bowl drain as gas really poured out.
My question is....is there a screw that goes in the front hole, because mine is now missing, and what is its purpose?
Thanks guys
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wdforty5 ![]() Silver Level ![]() Joined: 08 Sep 2011 Location: Illinois Points: 163 |
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Anyone?
Bump
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Jacob (WI,ND) ![]() Orange Level ![]() ![]() Joined: 11 Sep 2009 Location: Kenmare, ND Points: 1248 |
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First off, I think we are all a bit confused, but I'll attempt to help. What type of carb do you have first off?
By reading your post, I am assuming that the tractor was running fine when you shut it down. Is that correct? Was the carb leaking when the tractor was running? If not, I would wager a guess that your needle valve is either sticking slightly or had some crud in it, and when you shut the tractor off, the carb was flooding and dripping out as a result of the needle valve not closing off the gas supply to the carb (but is not noticed when tractor is running because it is using the gas). If you really do have a hole in the bottom of the carb from a bolt missing, you should have a big gush of gas, and the tractor would probably not be running right. Probably just need to take apart the carb and clean it. Hope this helps.
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Jacob Swanson
1920 6-12; 1925,1926 20-35 longfenders; 1925,1926 15-25's; 1927,1929 20-35 shortfenders; C; B's; IB; WC's; WD; WD45 |
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wdforty5 ![]() Silver Level ![]() Joined: 08 Sep 2011 Location: Illinois Points: 163 |
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Yep tractor was running fine when I shut it off. I did notice the leak after I shut it down. Im honestly not sure what carb I have. what should I look for for ID?
It does look like a threaded hole in the air intake tube on the carb. It is on the bottom of the tube and thats where it is leaking.
Sorry if this is hard to understand...its a bit hard to explain.
Had to crank forever to get her to start this afternoon. Got the battery on the charger now :(
Thanks
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Jacob (WI,ND) ![]() Orange Level ![]() ![]() Joined: 11 Sep 2009 Location: Kenmare, ND Points: 1248 |
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A picture is worth a thousand words here. Any chance you can provide one?
carb ID tag should be riveted to the carb, usually towards the top (sometimes they are missing, or under crud). There will be numbers stamped in it that will help ID the type and model of carb. I'm not a expert when it comes to all the various carbs, but to my knowledge (at least on my WD45, which is a project tractor yet so I don't know it well), there should only be the one drain plug (which you found), and a jet on the bottom which is kind of at a 45 degree angle towards the front. I don't think there is any other holes? Someone will correct me if I'm forgetting something. Regardless, take the carb off, and take it apart and clean it up. If you have never done this: First, its time to learn how, LOL! second, it often solves loads of problems, a little dirt makes for big headaches. Third, its not really as hard as what people make it out to be. If I can, you can. Just take notes of all the jets settings before you move them. Screw them in until they touch bottom and make notes of that amount, so when you put it all back together, you can back them out this amount, and then fine tune from there. Take it all apart and blow some compressed air in ALL of the passages. make sure that air is going through to somewhere, or you know something is plugged up. Chances are, you might need a new needle valve, since that sounds like where yours is leaking. Check that the shafts, where they go though the side of the carb, are not sloppy and loose. If they are, time to order a full carb rebuild kit. leaky seals on those shafts cause problems. Check that your float floats, and had no gas inside it (because of holes). Once carb is all cleaned up, reassemble float in top half of carb and flip the assembly upside down. Check that float is parallel with the flat where the two halves of the carb meet. once it is, put top and bottom of carbs back together (probably with new gaskets, if the old ones are shot). Don't be a-scared of cleaning a carb. Chances are, it didn't start good this afternoon because something is wrong with the carb. Have you gone through the gas system lately? Is the gas tank clean? Fuel filter bowl and screen clean? If not, clean them. heck, clean them anyway! line to carb clean? If there is crud in any of these, it will find its way to the carb and you will be back to square one, so now is the time to check them. Old tractors take care and maintenance to keep them running at there best, something people often forget until things start going wrong. Good luck and let us know what you find.
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Jacob Swanson
1920 6-12; 1925,1926 20-35 longfenders; 1925,1926 15-25's; 1927,1929 20-35 shortfenders; C; B's; IB; WC's; WD; WD45 |
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wdforty5 ![]() Silver Level ![]() Joined: 08 Sep 2011 Location: Illinois Points: 163 |
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Thank you for the help... I agree this is in need of the necasary maintenance and Im sure ill learn along the way. Doesnt look all that hard, and im sure it needs cleaned. Its not the orininal tank on it, and it truly needs gone through as well. Ill probably pull it off weekend after next..(deer season next weekend :) )
Sounds like I need to order a rebuild kit for it.
Thanks!!
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Dusty MI ![]() Orange Level ![]() ![]() Joined: 13 Sep 2009 Location: Charlotte, Mi Points: 5059 |
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Some carb have a place that gas can drain out when the float valve is leaking allowing carb over flow.
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917 H, '48 G, '65 D-10 series III "Allis Express"
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norm[ind] ![]() Orange Level ![]() Joined: 29 Oct 2010 Location: bourbon,ind Points: 2992 |
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MORE MARVEL SCHEBLER used than the ZENITH IN OUR AREA NOT MANY ZENIH KITS SOLD 1-800-254-3116 FOR KITS
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