General Discussion Discuss your Oldsmobile or other car-related topics.

Treadle vac

Old March 16th, 2019, 04:18 PM
  #1  
Registered User
Thread Starter
 
Join Date: Nov 2014
Location: Huntington Beach, Ca
Posts: 98
Treadle vac

Does anyone know if Karps in upland, ca a good place to have my treadle vac rebuilt for my 57 olds?
griffey57 is offline  
Old March 16th, 2019, 05:50 PM
  #2  
Proud Viet Nam Veteran
 
redoldsman's Avatar
 
Join Date: Dec 2006
Location: Rowlett, TX
Posts: 6,594
In my opinion it is the best. They rebuilt the one in my 54 several years ago and no problems. I know there are some other places that are good but Karp's is excellent.
redoldsman is offline  
Old March 16th, 2019, 06:03 PM
  #3  
Registered User
Thread Starter
 
Join Date: Nov 2014
Location: Huntington Beach, Ca
Posts: 98
Great, because I toyed with the idea of converting to discs, but too involved to switch and besides I like my drum brakes they have always worked fine.
griffey57 is offline  
Old March 17th, 2019, 04:17 AM
  #4  
Registered User
 
Greg Rogers's Avatar
 
Join Date: Jan 2009
Location: Harrison, Michigan
Posts: 1,721
Ok, I'll bite, what is a treadle valve? Kinda like a kunutin valve?
Greg Rogers is offline  
Old March 17th, 2019, 06:18 AM
  #5  
Gary
 
VC455's Avatar
 
Join Date: Feb 2014
Location: Gillespie County Texas
Posts: 629
Greg, it's a modulating valve used for air pressure or vacuum to enhance brake application. GM cars used it in the 1950s. Big rigs still use it.
VC455 is offline  
Old March 17th, 2019, 07:35 AM
  #6  
Registered User
 
Tedd Thompson's Avatar
 
Join Date: Oct 2004
Location: Forest Ranch Ca.
Posts: 5,094
It's like a Left hand muffler belt box bearing adapter and they come from the factory with grief when old....Or maybe i'm thinking of something different? So confused these days..... Just lost...... Tedd
Tedd Thompson is offline  
Old March 17th, 2019, 09:38 AM
  #7  
Proud Viet Nam Veteran
 
redoldsman's Avatar
 
Join Date: Dec 2006
Location: Rowlett, TX
Posts: 6,594
I have no idea what a kunutin valve is but a treadlevac is the power brake unit used by GM on cars in the 50's. It is a unit that includes the power booster and the master cylinder. Oldsmobile mounted them under the floorboard (at least on the earlier cars) while Chevrolet mounted them on the firewall.
redoldsman is offline  
Old March 17th, 2019, 05:52 PM
  #8  
Registered User
 
Greg Rogers's Avatar
 
Join Date: Jan 2009
Location: Harrison, Michigan
Posts: 1,721
OK, learn stuff all the time!!
Greg Rogers is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Gawain
Vintage Oldsmobiles
2
February 20th, 2018 05:24 PM
Russ P in MD
Vintage Oldsmobiles
3
August 22nd, 2016 08:17 AM
Rocketowner
Vintage Oldsmobiles
3
November 11th, 2014 12:54 PM
Rocketowner
Vintage Oldsmobiles
12
April 18th, 2013 09:53 AM


Thread Tools
Search this Thread
Quick Reply: Treadle vac


Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.