Author Topic: Wheel Cylinders?  (Read 1784 times)

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Offline epic3

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Wheel Cylinders?
« on: May 25, 2006, 11:44:55 AM »
Ok I gots a little problem with my buggy It keeps blowing it's wheel cyliders. Twice now to be exact and I don't know why. They are altrom units and cost me 47 bucks each (most expensive cylinder I've bought) and without excessive pedal pressure they pop and I loose all braking. Keep in mind I'm only running rear brakes the front is to light and lock up what are your guys suggestions this is dangerous and always seems to happen on logging roads  

Offline Bruce

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Wheel Cylinders?
« Reply #1 on: May 26, 2006, 02:07:40 AM »
If you are locking up your front wheels, the cure is to alter the F to R brake bias, not to remove the fronts all together.  You can very easily increase the rear bias by installing Super Beetle front wheel cylinders in the rear.  

Offline Trevor P

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Wheel Cylinders?
« Reply #2 on: May 26, 2006, 11:45:14 AM »
Are your rear brakes adjusted properly?? Maybe they are too far in, and the wheel cyls. are over compensating.
'53 Barndoor single cab
'57 Cal-look oval 2332cc / Berg 5
'70 911T

Offline epic3

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Wheel Cylinders?
« Reply #3 on: May 27, 2006, 01:41:35 AM »
Trevor I know the shoes are quite worn would that do this and how do I adjust them
Bruce what year wheel cylinders would I put in.My drums are the small four bolt pattern swingarm transaxle

Offline Bruce

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Wheel Cylinders?
« Reply #4 on: May 27, 2006, 02:02:56 AM »
Super Beetle front wheel cylinders are all the same from 71-79.

Offline Trevor P

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« Reply #5 on: May 27, 2006, 08:49:12 AM »
Quote
Trevor I know the shoes are quite worn would that do this and how do I adjust them
Bruce what year wheel cylinders would I put in.My drums are the small four bolt pattern swingarm transaxle
If the shoes are really worn out, and the drums are beyond tolerance, then I suppose it is possible, but they would have to be really out of adjustment/worn.
As far as adjusment goes, you have star adjusters on the bottom of the backing plates that are accessed from the holes in behind. One adjuster per shoe. Run them out 'til the shoe just touches the drum, then back off a couple turns.
'53 Barndoor single cab
'57 Cal-look oval 2332cc / Berg 5
'70 911T

Offline epic3

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Wheel Cylinders?
« Reply #6 on: May 30, 2006, 09:08:44 PM »
I'll try that thanks dude but do you have any idea what year these may be being small four bolt pattern and swingarm

Offline 68IIIbuggy

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Wheel Cylinders?
« Reply #7 on: May 30, 2006, 10:37:12 PM »
68 and later. Also, I've never heard of wheel cylinders \"blowing\", as they are, by the nature of there design, made so the higher the pressure exerted on the cup, the better they seal. Are you sure you don't have an oil-in-the-brakefluid contamination issue? That would be the first thing I'd suspect, since it's happened more than once.

Offline epic3

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« Reply #8 on: May 31, 2006, 08:33:10 PM »
Nope no oil in there it's been bled completely out plenty of times and this time also when I just installed these cylinders but your right I've never had a cylinder blow out leak yes blow no just two times on this buggy now

Offline silas

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Wheel Cylinders?
« Reply #9 on: May 31, 2006, 11:44:01 PM »
Quote
They are altrom units...
there is your problem.

Offline kirin

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Wheel Cylinders?
« Reply #10 on: June 01, 2006, 12:02:32 AM »
Whats wrong with Altrom?
If more power is better. Then too much is just enough.
Why do it once when you can do it thrice?

Offline epic3

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Wheel Cylinders?
« Reply #11 on: June 03, 2006, 04:27:14 PM »
yeah whats wrong with these?should I toss these new not rebuilt ones and get somethin else

Offline kirin

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Wheel Cylinders?
« Reply #12 on: June 03, 2006, 06:35:50 PM »
Hey Epic,
My own personal feeling is that there is nothing wrong with altrom stuff. I've used it in my bmw and have had not a problem. Just my own pure curiousity what Silas' feeling is.
If more power is better. Then too much is just enough.
Why do it once when you can do it thrice?

 

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