[TR] tr4 brake riddle

[jerryvv at roadrunner.com]

I forgot to ask. Does it pump up or is it half pedal all of the time? Half pedal standing still or while driving? A loose wheel bearing can cause pad knockback on the front disc's requiring a lot of pedal before contacting the rotor. Would happen while driving not always standing still since you'd have applied the brakes to stop your motion.
JVV
---- John Young <jeyoung_2 at yahoo.com> wrote: 
> In addition to lost motion in the linkage, check the end play in the
> crankshaft. (thrust washers).
> The clutch has to push the crank forward to the
> limit before it can begin to realease the clutch.
> Easy measurement to make
> with a dial gauge on a magnetic holder.
> 
> John Young NASS# 528
> Indiana
> '78
> Spitfire
> '66 Spitfire
> '59 TR3A (being repaired after 37 yrs ownership)
> 
> From:
> Chris Simo <ccsimonsen at gmail.com>
> To: list Triumph <triumphs at autox.team.net>
> Sent: Wednesday, April 18, 2012 2:28 PM
> Subject: [TR] tr4 brake riddle
> 
> Just
> started digging into a brake issue. I thought I'd share the symptom
> and see
> who comes up with the winning diagnosis.
> 
> Thought it was a broken spring in
> the master cylinder and it's not.
> 
> Brake pedal would go halfway to the floor
> before engaging. Rear brakes are
> adjusted correctly and it takes 2 clicks on
> the brake handle to get the car
> to hold firm.
> 
> opened up the master cylinder
> and the spring is intact and I dont see any
> scoring on the bore. Since it's
> out I'll rebuild it -  but I don't see that
> it really needs it.
> 
> What else
> could it be?
> 
> Thanks
> 
> Chris