master cylinder?

[pepsx12]

my 620 has a brake problem.

when i step on the brakes my whole foot goes in?

and it takes a while for them to actually grab?

maybe my master cylinder?

and were would i be able to find this:)

[Skib]

have you tried calling your local Napa, Schucks/Kregan, autozone ect.?

[banzai510(hainz)]

Have you cked to see if fluid in there?

 

fill it up and see what happens . if it dissapearing ck bhind the wheel to see if its leaking out and under the floor.

 

if brake sticks on one wheel usually the wheel cylinder has a blown seal and causing brake shoe to grab.

 

also maybe reblled brakes if you drove it too low on fluid as air bubbls go in there

[datzenmike]

If you have pre '78 it has drum brakes all round. They need to be adjusted properly first before looking at other causes. When adjusting, look for leaks. If the master has gone dry or very low you may have pumped air into the system and it will need bleeding to remove. '78 and up 620s use front disc brakes so only the rears need to be adjusted. Be sure to adjust the parking brake too.

 

This should bring back that firm pedal.

[pepsx12]

a;roght yeah its a 76 and its drum all around thanks for the info guys

im new to this datsun stuff imma corolla person:)

but these seem fun also