after a lot of trials, now i have fixed the problem. to remember. I had some fluid leaking in the area, banjo bolt, junction block- brakelight switch. i have changed the junction block, the banjo bolt nothing realy helps. i have changed every time with every dissassembling the copper seals. but it was still leaking a little bit. talking with different experts one idea was to make a "heat treatment with the copper seals" this brought final the success. I heated the rings with a torch until they glow, and cooled them down with water. this made the copper more soft. made them able to seal better with lower torque. it looks like even with all new rings they are sometimes to hard for this kind of aplication. BR Josef

Dear all, ist there a difference between those radiators? Will a 49 fit in my 47? Thank you best regards Josef

that sounds very good and it will bring me in the right direction i guess. i will search for it. thank you very much! have a nice day. BR Josef

Dear Wesley , please have a look on this photo. the switch is assembled with the hollow screw in the brass connector, together with two break lines. connected to the master cylinder. in the part book the brass part is no 01.010. i have destroyed one brass thread and one of the taper. I guess there is no safety way to repair the thread. because of the high pressure in the system.

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Dear all, does anyone have a source for the brass connector on the master cylinder? it connects the brake light switch and brake line to the cylinder. the part number on Packard 1.010. I guess this is no unic packard part. I have found very similar at Willys Overland, but they have got not the 7/16"-24 thread.
i attach a photo from my broken part.
thank you very much in advance, BR Josef

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yes, thank you very much. all these thoughts are very helpful. my cylinder is overhauled, so the thread can be worn out. as well as the thread of kanter may not fit exactly. i will test the idea with the teflon tape quickly. it is easy and the resistance of teflon is very good. thank you very much for your help ! best regards Josef

Dear all,
i have a new brake light switch from kanter and it is sweating brake fluid a little bit at the thread. the old switch was assembled without any seal inside the hollow screw number 1.0100 . there was no leak.
my question: must there be normaly a cupper ring or something else? in the "master parts book" is no picture.
I have tighten the switch firmly. i am afraid to destroy the switch if i tight it more tight or to have a leaking break. do you have got any thoughts?
best regards Josef

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Hello Howard thank you very much to your very detailed reply. I guess this help me to get everything done. have a nice weekende, best regards Josef

i have found the reason. the push pull cable is the reason. if the knop looks like he is complete pulled out, he isn?t complete pulled out. while i keep holding pulled the knob during clutching, the freewheel switches off. while driving above potholes on my yard, the freewheel enganges again. I must find a better adjustment for the cable. thank you all, BR Josef

thank you very much to all your advices. I will check this weekend on the next yard test drive with low speed. I hope it is only a small issue. Stay health and have a great time in your Packards, BR Josef