Re: [Chrysler300] Power Steering Hose Background

[John Lazenby <french_fryguy@xxxxxxxxx>]

As I recall the '55 & '56 were the same except the fitting at the reservoir end.  One was male and the other female.  On one car I was able to change out that fitting and all worked well.  Also, I remember the bends of the replacements being a bit different than the original.  Fitting it with these changes was no problem.  I've never dealt with the hose change on our '57 so I can't comment on that one, but I do suspect the results would be the same.
 
Rich makes comments about pulsations but my cars have none of that until you load the steering at it's limit.  That will produce a groan but nothing more.
 
Before I discovered the replacement hose I had one custom made with a reducer in the middle.  This did not offer the results of the original style but did produce a very noticeable rumble.  I don't know what is inside one so it must be "magic".
 
John Lazenby
 
  

________________________________
 From: Rich Barber <c300@xxxxxxx>
To: Chrysler300@xxxxxxxxxxxxxxx 
Sent: Friday, May 24, 2013 5:12 PM
Subject: [Chrysler300] Power Steering Hose Background
  
   
 
Those not (yet) faced with the challenges of finding replacement power steering hoses mAay wonder what it’s all about.  While most hoses are of the proper length, the proper angles of the bends in the steel tubing ends is really important for proper routing and alignment of the hose when it is in place.  Additionally, some hoses (’55-’56) originally came with a foam rubber cover over part of the hose--apparently to prevent the hose from rubbing against engine and/or chassis parts.  Chrysler called these “bumpers” in their catalog, they are apparently no longer available, but can be simulated with foam pipe insulation.

As the action of the power steering pump rotor will naturally produce little pulsations in the hydraulic system, I believe the hose diameter change in the middle of the hose is to break up and smooth out that pulsation.  I wouldn’t be surprised to learn that the metal coupler that splices the two different diameter hoses together has a restriction in it to further break up pump-induced pulsation.

I have an apparent original p/s hose for our ’55 C-300.  The center coupler is brass and carries the proper Chrysler part number.  I’m keeping it for reference.  In the ’55-’58 parts manual, section 19-58-7 (http://www.jholst.net/55-58-parts-manual/steering.pdf Page 19-40)     shows different hoses for different year Chryslers (different hoses for ’55, ’56 and  ’57-’58).  If you have a hose that fits and aligns well, be sure to keep it for a reference.  You might have to take a new, similar hose to a hydraulic hose shop to get the right length, center coupler, end tubing lengths, tubing fittings and bends in the steel tubing.

Rich Barber

Brentwood CA

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