1958 speedster rear like steering under hard braking.

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David James Allison
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1958 speedster rear like steering under hard braking.

#1 Post by David James Allison » Thu Aug 15, 2019 6:35 pm

Pulling to right with hard braking. Feels like rear steering. Brakes are adjusted and tire pressure checked.

Geoff Fleming
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Re: 1958 speedster rear like steering under hard braking.

#2 Post by Geoff Fleming » Thu Aug 15, 2019 9:21 pm

Could be blocked rubber brake lines in need of replacement. Wouldn't hurt to check the brake shoe settings. Sometimes the shoes are not positioned correctly and will affect the braking, especially under hard use.

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Mike Wilson
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Re: 1958 speedster rear like steering under hard braking.

#3 Post by Mike Wilson » Thu Aug 15, 2019 9:35 pm

Were the drums turned and the shoes arced? Also check the wheel cylinder.

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Mike Wilson
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Mike Wilson
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Re: 1958 speedster rear like steering under hard braking.

#4 Post by Mike Wilson » Thu Aug 15, 2019 9:36 pm

Also check the spring plate bolts.

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Mike Wilson
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Jon Schmid
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Re: 1958 speedster rear like steering under hard braking.

#5 Post by Jon Schmid » Thu Aug 15, 2019 11:32 pm

Maybe this should be a sticky given the 356C brake thread from earlier. There seems to be a lot of interest in pulling brakes.

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Mike Wilson
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Re: 1958 speedster rear like steering under hard braking.

#6 Post by Mike Wilson » Thu Aug 15, 2019 11:45 pm

Good idea, Jon. Seems like there are frquently asked questions/threads.

Mike
Mike Wilson
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Tim Berardelli
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Re: 1958 speedster rear like steering under hard braking.

#7 Post by Tim Berardelli » Fri Aug 16, 2019 1:28 pm

Bad spring plate bushings can be a big factor in creating the "hook and ladder" effect.

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Al Zim
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Re: 1958 speedster rear like steering under hard braking.

#8 Post by Al Zim » Wed Aug 21, 2019 9:43 am

Maybe your should should get the car properly aligned. This cannot be done with a piece of string in your garage because you cannot find the center line of the car! Each wheel of the car can point in a different direction. A concept that seems difficult to understand. al zim It is highly unlikely that once the brakes are assembled properly adjusted and used for a a few stops that the prake shoe relationship to the drum would change. Follow your shop manual.
Last edited by Al Zim on Sat Nov 09, 2019 1:18 pm, edited 1 time in total.
 

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Jay Wiener
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Re: 1958 speedster rear like steering under hard braking.

#9 Post by Jay Wiener » Wed Aug 21, 2019 2:29 pm

where are you located?

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Wes Bender
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Re: 1958 speedster rear like steering under hard braking.

#10 Post by Wes Bender » Wed Aug 21, 2019 3:01 pm

David James Allison wrote:
Thu Aug 15, 2019 6:35 pm
Pulling to right with hard braking. Feels like rear steering. Brakes are adjusted and tire pressure checked.
Doesn't sound like an alignment problem to me.

I beg to differ with you, Al. Using a plumb bob on a piece of string and dropping points from all four wheels onto my garage floor (now concrete... what a difference), then rolling the car one half wheel turn forward and repeating, I get a pretty accurate alignment picture. This is NOT to be used after collision repairs or other drastic chassis work, however. For that a jig is necessary.

(Of course, I'm one of the unbathed types on here who owns a set of tools, a few books, and does his own engine rebuilds, so my advice might be suspect.......)
Some days it just isn’t worth the hassle of chewing through the restraints......

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Craig Richter
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Re: 1958 speedster rear like steering under hard braking.

#11 Post by Craig Richter » Wed Aug 21, 2019 3:06 pm

:D
 

David James Allison
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Re: 1958 speedster rear like steering under hard braking.

#12 Post by David James Allison » Fri Nov 08, 2019 10:50 pm

The guys at Road Scholars In Durham NC figured out the material in the shoes had deteriorated causing the problem.
The car had been restored many years ago and the former owner rarely drove the car. Cars are meant to be driven and enjoyed.
Thanks for all the feed back.

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Mike Wilson
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Re: 1958 speedster rear like steering under hard braking.

#13 Post by Mike Wilson » Fri Nov 08, 2019 11:36 pm

Thanks for letting us know what the problem and solution was.

Mike
Mike Wilson
Lomita, CA
'63 B coupe

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