300 / 400 Series Fuel Tank removal

[JCM 10,639]

Anyone have an issue trying to remove the bolt through the tank / seat support underneath ?  I assume there is an insert nut molded in the bottom of the tank. Been trying to soak it the past few years when I remember. The bolt will move very slightly then stop. Tried going both ways. I do have 2 spare gas tanks . Any suggestions would be appreciated. Thanks

[WHX?? 54,526]

Yep left side is impossible without removing the oil filter. Can get at better it if you remove the filter mounts down inside the pan stand. 

They are brass thread serts, I wanna call them, molded into the tank bottom. 5/16 Bolts are fairly short.  If you twist it out the tank may leak. Guessing the inserts are knurled to help hold them in. 

Keep dousing with your favorite juice  it and work back and forth may get lucky is all I can suggest. Might help to get at it if you disassemble the wings the tank sets on and remove the fender pan stand. 

Last one I wrenched on PO never even put them in. 

I got replacement tanks too Plunge. 

Edited 5 hours ago by WHX??

[WHX?? 54,526]

Might add you should be able to disassemble everything to get the tank out and on the bench. 

Edited 5 hours ago by WHX??

[squonk 45,377]

If the rivet nuts come out of the tank and the tank is undamaged, Horror Freight sells a fairly inexpensive kit. Very handy to have for other stuff. 

 

 

https://www.harborfreight.com/10-in-professional-rivet-nut-setter-kit-58078.html

[JCM 10,639]

3 hours ago, WHX?? said:

Yep left side is impossible without removing the oil filter.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

That's when I first tried to remove the bolt when I was  servicing the Eaton 1100 I was lubing things up and she wouldn't budge. Might have to bring it out to the Love Shack to ger er done.