Re: [Amc-list] Proportioning Valve

[Keith Evenson <epd@xxxxxxxxxxxx>]

Armand, I also installed disc's on the front of my 70 Jav but I did  
not put in a prop. valve. I was advised at the time I did not need it.
The disc's are better then the drums were but I also have a 68 AMX  
with factory disc's and it stops a ton better and faster then the  
Javelin does now. It just seems to be kind of a soft pedal if you  
know what I mean. Just seems like you have to push for a bit before  
they start to grab.  I have ok vacuum like 13 - 15lbs so it seems  
like that isn't the problem but do you know of any thing else that  
may help or does it sound like I need a prop. valve. I know it just  
balances the system so I don't think that is the problem. The other  
thing I was considering is a vacuum tank?

Thanks Keith

55 Chevy Gasser
68 AMX
70 Javelin





On Oct 25, 2007, at 9:51 AM, Armand Eshleman wrote:

> Feltonik (real name?),
>
> Welcome to the list. I hope your experiences here will be as great  
> as mine.
>
> I have personal experience with this on my 70 Javelin. I converted  
> it to
> front disc brakes from drums all around.
> In 1970 model AMX and Javelins the factory installed a  
> proportioning valve
> on the inside of the passenger
> frame rail in front of the rear axle for disc brake equipped cars. The
> proportioning valve is not installed on the all
> drum setups. Since my car did not have the regulator I simply  
> purchased one
> from Summit
> http://store.summitracing.com/partdetail.asp? 
> autofilter=1&part=SUM2DG3905&N=700+4294922533+4294918719 
> +115&autoview=sku
>
> As I was replacing all the nasty looking brake lines I installed  
> the valve
> in the factory location by fabricating a simple
> bracket. I then bleed the system, bedded in the new pads, etcetera,  
> and
> adjusted the valve until things were satisfactory.
>
> May I also mention that my disc brakes came from a 75 Hornet. I  
> purchased a
> new master cylinder from NAPA for the
> Hornet and installed it in my Javelin. The drum master cylinder  
> from your 70
> AMX may not be adequate to operate the
> disc brakes.
>
> Armand
>
>
>
> ----- Original Message -----
> From: <feltonjk@xxxxxxx>
> To: <amc-list@xxxxxxxxxxxx>
> Sent: Wednesday, October 24, 2007 4:20 PM
> Subject: [Amc-list] Proportioning Valve
>
>
>> I am new to the list so forgive me if this subject has been addressed
> already.? I am converting a 70 AMX from drum all the way around to  
> front
> disc.? I have everything I need except the proportioning valve.? I  
> have?been
> told everything from I don't need one, to buy an adjustable one  
> (but get a
> brake professional to adjust it), to use the GM valve that was used on
> vehicles such as the 70 Impala.? Any suggestions?
>>
>>
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