New carb socket fits loose

Are these Rotax sockets or aftermarket? Are you sure you pushed it in all the way until you felt / heard a little snapping sound when it clicks into place? Some don’t push the carb far enough into the socket. I’ve never seen a bad / lose Rotax socket. 

They are Rotax sockets, brand new from Advanced Powerplant Solutions (formerly LEAF). I am sure the carb is seated fully. 

I purchased and installed another new carburetor socket part number 267789 from Advanced Powerplant Solutions (Formerly LEAF). The new new socket has the exact same issue as the previous new socket- the 2/4 carburetor is not fully snug in the socket, even when fully tightened down. I compared and swapped clamps, put a micrometer to the clamp spacers, etc. no differences. I measured the intake manifold side of the carburetors that fits in the sockets and both are the exact same size. I measured the socket openings and they measured to the same size. However, I did note that the 1/3 carburetor feels significantly more secure when I mount it, before even tightening the clamp. It just feels much more correct from the start. I ensured the carburetor and the socket are clean of grease, oil and dirt. I am at a loss what to do at this point. This is not okay.

Hi Kelsie,

Something here makes no sense. It’s hard to troubleshoot this since we aren’t there. I have seen carb sockets so tight you really need to apply some real pressure and tilt them back and forth to get them to snap in place. In replacing many hundreds of these I’ve never seen a lose one. When seated completely in place there is only about 1/4” from the socket edge and the carb just under the domed area. I have seen quite a few people that either couldn’t push it in far enough or didn’t know it must fit this far in. So the groove on the carb throat snaps onto the raised rubber protrusion in the rubber mount. Double check this gap.

Hi Roger, I appreciate your advice. Here are some pictures of the carburetor mounted in the socket, as well as the best photos I could get of the clamp tightened down. The carburetor looks well seated to me, and it looks the same as the 1/3 carb seating in the socket.