Re: [Chrysler300] Brake problems

[retromobilia@xxxxxxxxxxx]

I had a similar, spongy/soft/low-pedal, brake problem on a '54corvette race car converted to disc brakes. It tuned out to be the standard (NAPA) flexible brake lines which were not capable of handling the excess pressure of the disc brake system. They were expanding/inflating causing a variable soft pedal much like the effect of air in the lines. We bleed the brakes repeatedly with no avail, until one day I observed while the mechanic was doing the bleeding that the flex lines were moving. We found some high pressure ones and all problems went away..... 

J D Jung 
Retromobilia.net 

----- Original Message -----
From: "David Schwandt" <finsruskw@xxxxxxxxxxxxxxx> 
To: "Paul Martin" <paul_martin78ca@xxxxxxxx>, "Ray Jones" <hurst300@xxxxxxxxxx> 
Cc: chrysler300@xxxxxxxxxxxxxxx 
Sent: Monday, May 21, 2012 4:48:45 AM 
Subject: RE: [Chrysler300] Brake problems 






Could vacuum leaks have anything to do with all the problems folks seem to 
have w/disc brake conversions?? 
Sure seems to me that this topic is cropping up very often on this forum as 
well as the FL forum. 
One would think by now the process of converting to front discs would be 
pretty much SOP w/good results and performance. 
I have considered the switch, but have been putting it off because of all 
the problems people seem to be having with them. 

I have never been 100% happy with the stock brakes on my F, but I suspect 
vacuum leaks may be playing a part here. 
Jim McGowan has my carbs at present for a complete rehab and I am hoping 
tightened up throttle shafts will improve 
Braking by upping the vacuum. 
Or.....am I just wishfull thinking here?? 

Dave Schwandt 

-----Original Message----- 
From: Chrysler300@xxxxxxxxxxxxxxx [mailto: Chrysler300@xxxxxxxxxxxxxxx ] On 
Behalf Of Paul Martin 
Sent: Sunday, May 20, 2012 10:36 PM 
To: Ray Jones 
Cc: chrysler300@xxxxxxxxxxxxxxx 
Subject: Re: [Chrysler300] Brake problems 

Niels 

Just completing an AAJ install on my 300F and have experienced similar 
issues with brake pedal travel. Followed adjustment procedure recommended by 
members here. I have got some improvement but am still experimenting to get 
proper pedal height. I think we are experiencing typical spongy brake pedal 
with disc brakes. 

Paul 

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