<VV> brake help

FrankDuVal corvairduval at cox.net
Thu Jan 17 08:23:43 EST 2019


Hard to see my facial expression, but I am agreeing with you. Throttle 
not leaking with original type fluid, not a safety issue, so continue on 
using it.

Brakes are safety, so if DOT 5 caused leaks past a worn seal in a 
braking system, it is time to fix the seal, as eventually the seal would 
pass other fluid compositions. Better a brake failure in a shop than on 
the road.

Just like "Mechanic in a can" type stop leaks. I would use them in most 
any vehicle system except brakes.

My Hysteria was directed at people who discover DOT 5 leaking from a 
brake system, and blame the fluid. It means the brake system needs 
repair, they just found it earlier rather than later.

Frank DuVal

On 1/17/2019 1:41 AM, Hugo Miller via VirtualVairs wrote:
> That is exactly what I said - it might work fine if all the seals are 
> new, but if not you might be inviting trouble. As regards my throttle 
> - it's not a question of my being 'stubborn' - there was simply no 
> leak to 'fix'. It only started leaking when I switched to silicone 
> fluid, and stopped again when I went back to conventional fluid.
> Can you explain to me why my throttle might have suddenly failed in 
> these circumstances? If it had continued to leak, I would have dealt 
> with it. But it didn't. Hysterical nonsense!
>
>
> On 2019-01-16 20:24, FrankDuVal via VirtualVairs wrote:
>> Just because you tried the DOT 5 in a worn system and it leaked out
>> does not mean DOT 5 is a bad product, it means you needed to address
>> the worn seals.
>>
>> If it was the braking system would you have been equally stubborn to
>> fix the leaks? "Well, it seems fine now..."
>>
>> Just being throttle means failure would be inconvenient, not a safety
>> problem, but brakes?
>>
>> Been using DOT 5 for almost 40 years, NO issues. No brake failure due
>> to supposed DOT  5 issues. Nice to have 20 year old wheel cylinders
>> still work like when they were rebuilt! No more white corrosion.
>>
>> Frank DuVal
>>
>> On 1/16/2019 7:33 PM, Hugo Miller via VirtualVairs wrote:
>>> I have a coach business in the UK - I used to have a coach with a 
>>> hydraulic throttle. I switched to silicone fluid, thinking it would 
>>> be better. It started leaking. As a stop-gap, I just topped it up 
>>> with conventional fluid till I could replace the seals. As the 
>>> silicone fluid was replaced (or rather leaked out!) the leak slowed 
>>> then stopped. I never did replace the seals! Never used the stuff 
>>> since!
>>>
>>>
>>> On 2019-01-16 18:29, Jim wrote:
>>>> I've replaced everything in the brake system of my '69 in the past, 
>>>> and as
>>>> Hugo says, keep pumping.  You start with the wheel cylinder 
>>>> farthest from
>>>> the master, which, I believe for the rear is on the passenger 
>>>> side.  For the
>>>> front, it's also the passenger side.
>>>>
>>>> For the record, I've been using the DOT 5 silicone fluid in all of my
>>>> Corvairs for decades with no problems.  I have, however, replaced 
>>>> all of the
>>>> components when I started using DOT 5. I can't say whether it won't 
>>>> start to
>>>> leak or not if used in a rebuilt system.
>>>>
>>>> Jim Bartasevich
>>>
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