How to Remove a CA78 Petcock

[mason123h]

Could some please tell me how to remove a CA78 fuel tank petcock? I am going to de-rust my tank and need to remove the petcock.

Thanks!

[Tango911]

remove the bowl on the bottom of the petcock. then remove the o ring and screen. THen you will see three screws. Remove the screws and the petcock comes off.

[cadman]

........ Unless the screws are rusted in in which case they will not come out. I finally drilled the heads off the screws and removed the petcock. Then used Visegrips to remove the rest of the screw. I also re-tapped the holes to take ISO screws.

[mason123h]

Yup, we ended up drilling out the rusty screws and using vise grips to do the rest.

Thanks for the help!

[mason123h]

Yup, we ended up drilling out the rusty screws and using vise grips to do the rest.

Thanks for the help!