Removing primer bulb on 3.5 hp tecumseh engine carburetor

#Removing primer bulb on 3.5 hp tecumseh engine carburetor install

I should have the carb overhaul kit by Thursday, so hopefully that will do the trick. Does the vertical hole somehow curve toward both horizontal holes? It appears that carb cleaner blew out of both side holes when sprayed into the top center hole, so I think it's clear. I assumed the vertical hole meets the horizontal hole like a 'T', but the paper clip doesn't go all the way down to the horizontal hole. One question though, on your comment 'Check the float bowl jet (which is the bowl screw) and make sure the jets both horizontal and vertical are clean and open.' I could pass a paper clip completely through the horizontal hole. I had to thread a wood screw into it to get enough traction to pull it out.it was really glued in there. I pretty much destroyed the seat trying to get it out.

Meanwhile, I cleaned everything with carb cleaner, including the pin that the float pivots on, and the holes in the float and carb that this pin go through.now it pivots freely. I have a whole new carb overhaul kit on order that includes the float needle seat.

The float would not pivot would pretty much stay in whatever position I put it, so the needle wasn't closing against the seat for sure. Thanks for the great info and instructions, Rivets! I took the carb apart, and it was very gummed up. *You should be able to push the old float needle wire through the vertical opening. *Remove it and check to see that theist is open both horizontally and vertically. PS: *On the side of some Tecumseh carbs you will find a plastic cover. Good luck, but I don't think you'll need it. Remember to have patience and take your time. If everything looks good reattach the float bowl, making sure that both the bowl gasket and the nut gasket seal properly. It everything is correct, the float should seat level to the carb body, when looking at it upside down.

#Removing primer bulb on 3.5 hp tecumseh engine carburetor install

If everything looks correct, attach the new needle to the float and install with the float pin centered. Once it is seated, check to see that it did not flip and the rings are up. Slowly and carefully force the seat down with the back end of the drill bit. Carefully insert the new seat in the passage way with the rings on the seat down toward the carb body. 3-1 oil or lighter, to help seat it better. Apply a very, very small amount of a very light lube to the new seat. Now you must find a drill bit slightly smaller than the passage way, to be used to press in the new seat. With the seat out clean the passage way with carb cleaner. No air or hook try bending a stiff paper clip to dig the seat out. Put your thumb over the passage to prevent the seat from flying who knows where. If you have no hook, but compressed air, you can blow through the fuel inlet and try to pop the seat out.

This is where a #5 crotchet hook would come in handy as you need to remove this seat. Look in the float needle passage and you should see the red float seat at the bottom of the passage. Tip the carb upside down and remove the float pin and float with needle attached. Check the float bowl jet (which is the bowl screw) and make sure the jets both horizontal and vertical are clean and open. Remove the carb, and then remove the float bowl. I suspect that the float needle is not seating properly and you will need to replace the float needle and seat. Yes, the hole is supposed to be in the primer bulb. So my questions are, is there really supposed to be a hole in the bulb for this engine, and if the hole is supposed to be there, why does gas leak out of it? Is there a bad seal somewhere else that is providing a vent to allow it to leak from the primer bulb hole? Any ideas for what may be the problem? But it appears that the hole in the bulb is by design, which I later read could be the case for a primer bulb. But wanting to just see if it would start, I pushed the primer bulb 3 times, covering the hole in the tip, and it started on the first pull! I let it run for only a few seconds since I'm sure it needs fresh oil.ДЄssuming I needed a new primer bulb, I took the cover off the carb and pulled the primer bulb out. I figured the bulb had dry-rotted and formed a hole. When I got back to the mower, I noticed gas was dripping out of the primer bulb, apparently from a hole in the tip. I added about a quarter tank of gas just to see if it would fire up, and went to get some Seafoam to add to the gas assuming the carb would be likely gummed up. It worked last fine time I used it.I just replaced it with a new mower with a larger bag capacity. Craftsman mower model 917.377530, Briggs and Stratton engine model 12H802-2675-E1: I pulled this mower out of my garage for the first time in about 5 years to clean it up to sell.