As others have suggested, I bet on your adjustment. To check, you can
tighten them up untile the wheels are locked and then try the pedal. Let
the car sit for at least 10 minutes before you try the pedal to make sure
any air in the line has a chance to expand. Now try the pedal. If you
can still pump it, it's probably air in the line.
If you have a hard pedal, it's the adjustment. If it is hard now but not
when driving, look for out of round disks/drums, play in the wheel
bearings, etc.
Ulix
On Tue, 24 Nov 1998, Andrew Griffith wrote:
> Morning Spridgetters,
>
> I'm getting very frustrated over my rear brakes, the early type... I just
> can't seem to get them right. I've bleed them and bleed them and then I
> bleed them more, and I still can't get a good stiff pedal on the first pump,
> put the second is hard as a rock. I can positively say that the problem is
> not air in the lines.
>
> My car is a '62 MKII w/ the original single piston cylinder setup. I rebuilt
> my master (original 7/8" bore) twice and I'm about 98% sure it was done
> right. As far as the push rod adjustment goes, I think that it's done right
> also... as I adjusted it I would feel for any end play and when I felt that
> the rod bottomed out against the inside of the piston, I gave it about
> another half turn. I remember last week the topic of MC push rods came up...
> what size should I have? I'll check it.
>
> I converted the fronts to disk (they seem to work fine) and rebuilt all the
> wheel cylinders, making sure that no pits are in any.
>
> I even got down and checked the travel of the piston in the rear wheel
> cylinders while the brake was applied, it only moved about a quarter of an
> inch. Anyone know what the piston travel should be? I've also but on new
> shoes and re-surfaced the drums. I checked the diameter of the drums,
> they're about 7 1/16". I think new they are 7". Is it possible that my drums
> are too big?
>
> Should I scrap these and upgrade the rears as well?
>
> Please send suggestions !!
>
> Thanks,
>
> -Drew in San Jose Ca.
>
>
>
>
>
Ulix __/__,__
.......................................................... (_o____o_)....
'67 Sprite
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