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Ford 640 Overload Valve help Needed ASAP

J

jmbryant44

New User
I am trying to remove the threaded end of I guess the overload valve housing and can't get it to come out to check the valve and replace o rings.. I read what info I think is here and believe I'm doing it right. I have put all the torque I want to on it because I'm afraid I'll break something. Is there anything else I should do or can do? Please help. Pictures attached
mvphoto24230.jpg


mvphoto24231.jpg

 
I use a punch and hammer and drive on the unloading valve, opposite the plug, driving the valve and plug out at the same time. I'm sure this is not proper, but I have never destroyed any thing, yet.
 
I to used a punch and drove the valve and plug out together. Can this piece leak at pressure when fixed and installed. When the left goes up a jet of hydraulic fluid shoots out. Is there a separate oring kit that I can get other than the orings that come with the lift kit. Sorry to get in the disscusion but I just worked on my lift and the same problem with the extraction of the unloader valve.
 
Don't try to drive the plug out with a punch. Very likely to cost you plenty@

I use a fender dent puller snatching tool with a bolt of the right size as the plug. Screw the bolt adapter into the plug and snatch it out with the
impact tool.

May have to weld a nut that will fit the puller tool to the bolt that will fit the plug.

The NAA plug is easy to come out as it is just like a welch plug and tapping the unloading valve will do it easy. Not so with all the later Fords.

Zane
 
Thanks for responding. The squirt of oil is more continuous and with pressure and only through the lift not when it goes down. Should the oring be tight or should it be more of a metal seal. I'm thinking I put a large oring and the valve is stuck some way. What do you think.
 
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