I know I am missing something here...Ive done drums since I was 14 years old, but this is really ******* me off..... 1951 Chevy....drums all 4 corners...new 3/16 lines...new shoes...drums are perfect....new wheel cylinders....new hardware....new dual res master cylinder... Car grabs the left front real bad...... Ive bled Ive adjusted I bled again.....I cant get it not to grab on the left front.... Its sunny and I want to drive the thing, but it is scary... What do ya think?
Flex hoses ..new.... Shoes...clean and new.... Wheel cylinder has larger bore on Left front as per National chev......
Why are the wheel cylinders not the same side to side ? A larger bore will apply more force,causing it to pull to that side. Simple hydraulic theory.
Never heard of a larger wheel cylinder bore on one side. NAPA cylinders are both 1 1/8. I've seen old Ford cylinders that are stepped with two different bores on one cylinder but you still run the same on each side. I would double check cylinder size first. Fred
Also keep in mind that the side that is pulling may NOT be the trouble area. Usually it's the other side that is not working up to snuff so the side that is working correctly pulls. I've only got 25 years in a brake shop but I've never seen different bore w/cyls on the same end of the car. It is possible that a cylinder got boxed wrong. I've seen that a few times over the years.
So I took everything apart....go figure ..the hard line had some **** in it.....it wouldn't come out with air so I cut it up and best I can tell...it was some sort of wad of metal....maybe from the factory??... So I ran a new line and everything is fine.... I guess just because something is new doesnt mean it is good...lesson learned..... Thanks for all the help......Im sure something else will go wrong before I can get it around the block......
Look there! There's an oddball hiccup waiting somewhere for everybody, isn't there?? A complete brake job on a car you bought dead or from a junkyard or running but having stopping problems or you just don't know the last time anything was changed or whatever should include turning drums(replacement if too thin), relined or new shoes, preferably new cylinders, new flex hoses(don't forget the one to the rear), new master cylinder, probably new brake pipes(hardlines), new springs if available.
I was going to suggest two other ideas: Two primary shoes on the left front would make it pull. Not enough caster on the left front will do the same thing.
I actually ripped the right side off to make sure I had the right shoes in the right places I never had a steal line bad from the get go....weird... But on a good note, I took it for it's maiden voyage, did a 2 mile loop to make sure things were good.... Now I'm debating if I should throw some mufflers in line....the straight pipes are pretty loud....and my local po po aren't to leanient....
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