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73-87 Chevy _ GMC Trucks => Brakes, Frame, Steering & Suspension => Brakes and Braking Systems => Topic started by: fiddler on July 12, 2021, 04:58:42 pm

Title: Re Bench bleed master cylinder??
Post by: fiddler on July 12, 2021, 04:58:42 pm

I have a 1974 chevy C10 stepside.  Rear brakes were locking in "quick" stops so I just changed the 48 year old proportioning valve as the rest of the brakes were done about 2000 miles ago.  EVERYTHING but the lines is new.  And some of the lines are new.   Anyway, in the process I inadvertently knocked my temporary plug out of the line and I lost all of the fluid in the front brake reservoir, (the little one to the rear of the truck).  I am about to bleed the brakes with a pressure bleeder.  Do I need to re bench bleed the master cylinder since one of the chambers siphoned dry??   Thanks for your help!

Title: Re: Re Bench bleed master cylinder??
Post by: VileZambonie on July 12, 2021, 06:46:06 pm

If you have a pressure bleeder you are good.

Title: Re: Re Bench bleed master cylinder??
Post by: fiddler on July 12, 2021, 09:49:38 pm

Thanks.  That worked great.  I will road test tomorrow.  I have a 1/8 mile long driveway but not really enough to get a good feel for an emergency stop....  That pressurized bleeder setup was one of those investments where you go..."Darn I wish I had bought that a long time ago!!"   


cheers...