how to remove the fuel sending unit from a bladder

[steve]

I am trying to remove the sender from a fuel bladder in a 2003 cav. I'am trying to not harm the rubber it's self. in my delusional mind I hope I can clean the old foam out and put new in. the sealer is very strong.

 

[Rob Klein]

typically those bladders are only good for 5-7 years. I would just get new bladders

 

[steve]

I am trying to save the tanks without removing them. on this cav I think you have to take off the front suspension and pull the tank forward.
bladders aren't leaking but the foam is slowing the fuel flow.
if this doesn't work, I will be ordering new tanks

 

[Ole Nylende]

Looks like you can just remove the 4 remaining bolts???

 

[Walter]

I am trying to remove the sender from a fuel bladder in a 2003 cav. I'am trying to not harm the rubber it's self. in my delusional mind I hope I can clean the old foam out and put new in. the sealer is very strong.
View attachment 147399

on my bladders the sending unit can be pulled straight out after removing the wires and nuts/bolts on top of the unit. Your photograph indicates that this is the same in your case.... In any case, I'd renew the entire bladder (keeping the sending units and other hardware). It costs some money but it's quite some work to pull the old bladders anyway...