Marvel Float Valve Seat Stuck

[Larryb2020]

I am trying to remove the soft brass float valve seat from a cast iron Marvel upper carb half off of my JD40. This one seems tighter than usual. There is a fibre sealing washer under the seat. Does anyone have any tricks for removing these seats. Will baking in an oven help? What temp?I am reluctant to use a torch as the brass float hinge bracket is right next to the seat and has two small rivets which attach it to the cast body and I am afraid I might damage them. Also I never seem to have the right screw driver to properly fit the soft brass slots on the face of the seat. Can I get a special tool for this? Lastly the main jet nozzle also seems to not want to come out. Any tricks for loosening and removing these would be greatly appreciated. Thanks

 

[Anonymous-0]

Its worth the bother and the cost to find a big screw driver to fit. Failing that, cut a hunk of 1/16" steel to fit and turn it with vicegrips.

Gerald J.

 

[Anonymous-0]

a large screwdriver bit that fits on a ratchet works for the seat, heat on the carb housing next to the nozzle. Let it cool, should come loose then.

 

[gtx1967jewison]

if u go to a tool place like snap-on man or acme tool crib they have various large flat-blade screwdriver sockets to fit 1/4" & 3/8" drive. for the nozzle tap it with 12-24 tap then get a long fully threaded 12-24 screw, stack up washers screw it in with grease on the threads & keep adding washers it'l pull it right out.

 

[Anonymous-0]

That used to be called a "drag link bit."

Gerald J.