Line wrench sizes for rear wheel cylinder? - Chevy Impala SS Forum
 8Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 22 (permalink) Old 08-05-2019, 01:29 PM Thread Starter
Member
 
Join Date: Dec 2014
Posts: 47
 
Line wrench sizes for rear wheel cylinder?

Hi, My 95 Caprice has a leaky rear wheel cylinder. What size line wrenches will I need to swap it out? This is my first time doing this repair. Any other tips are appreciated as well.
95CapriceClassic is offline  
Sponsored Links
Advertisement
 
post #2 of 22 (permalink) Old 08-05-2019, 07:28 PM
Senior Member
 
Z09B4U's Avatar
 
Join Date: Jul 2015
Location: Canada
Posts: 826
 
Quote:
What size line wrenches will I need to swap it out?
The fittings all seem to be metric. 13mm and 11mm have been mentioned. I would just get a set with at least 14mm to 10mm. Most sets are 3 or 4 wrenches which cover 6 to 8 sizes.


Quote:
Any other tips are appreciated as well.
As much as it sucks you might want to go at this slowly. You have identified a cylinder leak so first you need to know if you have the small(9.5), B4U(11), or wagon drum brakes(11). Each seems to require a different brake cylinder. Shoes to match. Good parts places will have hardware kits so you get new springs and that little shoe retainer part that always goes flying away. High temp brake grease for where the shoes touch the back plate.
Put down some cardboard or paper so cleanup will be easier. With the car jacked up get the drums loose. Back off the shoe adjuster. If the drums have a ridge they will need more space. If the drum is stuck to the axle shaft oil, heat, and pound till loose.
For the brake line fittings same thing,oil, heat, and pound till loose. Brake dust bad! Do not breath it and do not use a good vacuum to clean it up.If the steel line starts to turn with the fitting quit unless you have replacement lines ready. The more rusted they look the less chance you have of not twisting the line when you turn the fitting.
Take pictures of each side of the axle's brake hardware they should be different. If some idiot has installed the parts wrong and you copy it you will have problems. Get the brake adjusters set close to the drums.It would be good to have a service manual or a how to book photo copied so you can get it dirty.


Read a book, google, or watch a utube or two. It is not rocket science but it does need to be done right. I have skipped a lot of little steps that need to be done right. The factory service manual is always the best place to start.


This site has a lot of information on rear disk brakes. You might try the Longroof forum(wagon) to search for drum questions as they never came stock with disks.
95CapriceClassic likes this.

Z09B4U

Last edited by Z09B4U; 08-05-2019 at 07:31 PM.
Z09B4U is offline  
post #3 of 22 (permalink) Old 08-05-2019, 07:36 PM Thread Starter
Member
 
Join Date: Dec 2014
Posts: 47
 
Thanks for all the info, Z09B4U.
95CapriceClassic is offline  
 
post #4 of 22 (permalink) Old 08-06-2019, 05:27 AM
Senior Member
 
gbhs72's Avatar
 
Join Date: Nov 2015
Location: Lawton, Ok
Posts: 1,435
 
I would like to add one thing here. Go to Wal Mart and get some of their cheap brake parts cleaner and put a oil drain pan or what ever under the drum. Use the entire can, and more if needed, to clean the dust and let it run into the pan. No dust this way.

Mark: Snowman-33
95CapriceClassic likes this.

93 9C1: Work & Cubic Ca$h This started with a new headlight and fender Celeritas In Conficiendo
gbhs72 is offline  
post #5 of 22 (permalink) Old 08-06-2019, 02:02 PM Thread Starter
Member
 
Join Date: Dec 2014
Posts: 47
 
Quote:
Originally Posted by gbhs72 View Post
I would like to add one thing here. Go to Wal Mart and get some of their cheap brake parts cleaner and put a oil drain pan or what ever under the drum. Use the entire can, and more if needed, to clean the dust and let it run into the pan. No dust this way.

Mark: Snowman-33



Good idea. I'm glad you guys reminded me of the brake dust. Thanks!
95CapriceClassic is offline  
post #6 of 22 (permalink) Old 08-06-2019, 07:40 PM
Senior Member
 
4DoorSS's Avatar
 
Join Date: Nov 2008
Location: Beautiful Chester County, PA
Posts: 7,963
 
aaaaand another thing to Add on the Brake "Shoes" and Metal Cylinder Lines.

Be aware that the Shoes on each side and have a Primary and a Secondary Shoe. One shoe has more material on it and forget which goes to the Front or the back. The Haynes Manual for about $25 also has pretty good info and Pics along with LOTS of other useful basics for these cars.


Metal Lines - Soak them for a couple of Days on the Cylinder/Fitting and Line about a inch or two back. As was mentioned, you DONT want to twist the Metal Line if you can help it. A little flex at first is normal. You want the Nut to spin freely on the metal line.

I like to take some emery cloth or sand paper and get it as tight as you can to the back side of the nut and clean up the metal line. Then spray more penetrent and repeat a few times for another day if you can. Try to tighten it a little first and then try to back it out.

Not a bad idea to gravity bleed the rear circuit and keep tooping off the master til the fluid is clean. It also helps to Start the Nut/Line into the Wheel Cylinder first before mounting the cylinder to the backing plate. Then finish up the fluid flush by bleeding out the fronts.
95CapriceClassic likes this.

================================================== =============


'95 Caprice SS conversion - Bonny Buckets - 96 Column, Shifter and Console - 3.73 Gear and Herter tune - Z/28 Cluster - Blazer OH Console - Green/Pink bushings - Chromed Impala Wheels - Eibach Springs and Bilstein Shocks - Corvette Engine Dress - the list goes on and still more to do...it never ends.
4DoorSS is offline  
post #7 of 22 (permalink) Old 08-07-2019, 03:46 AM Thread Starter
Member
 
Join Date: Dec 2014
Posts: 47
 
Thank you, 4DoorSS. I'll spray some PB Blaster on it for the next two days. Cylinder should be here by Friday. I'm screwed if the nut rounds off or if the line breaks so I'll be taking my time. I do have the Haynes manual (and watched some Youtube videos) but I thought I'd ask for tips as I've been set back a few times by lack of info in the book. Now I just need to get a good set of line wrenches....which are pricier than I expected. Cheaper than a busted line I suppose.
95CapriceClassic is offline  
post #8 of 22 (permalink) Old 08-07-2019, 06:05 AM
Senior Member
 
4DoorSS's Avatar
 
Join Date: Nov 2008
Location: Beautiful Chester County, PA
Posts: 7,963
 
The Quality of your Flare Wrench will be important here. Harbor fright is okay for some things but Cheap wrenches can open a little when torqued and cause the fitting to get rounded.

I picked up this exact set (used on ebay) a while ago and love them. they are very stout and come in a nice case....


If you do happen to round the nut, there are always vise grips in a pinch but it will chew up the fitting. Hopefully the nut breaks free for you and the line doesn't get twisted.
95CapriceClassic likes this.

================================================== =============


'95 Caprice SS conversion - Bonny Buckets - 96 Column, Shifter and Console - 3.73 Gear and Herter tune - Z/28 Cluster - Blazer OH Console - Green/Pink bushings - Chromed Impala Wheels - Eibach Springs and Bilstein Shocks - Corvette Engine Dress - the list goes on and still more to do...it never ends.
4DoorSS is offline  
post #9 of 22 (permalink) Old 08-07-2019, 07:06 AM
Senior Member
 
gbhs72's Avatar
 
Join Date: Nov 2015
Location: Lawton, Ok
Posts: 1,435
 
I'm going to step in here again. IF, very possible, you do happen to twist the line. All is not lost. You can get these, https://www.inlinetube.com/products/CFB91R1. They also make them in stainless steel. I don't know the condition of your lines but it may be a good idea anyway to replace them.

Mark: Snowman-33
95CapriceClassic likes this.

93 9C1: Work & Cubic Ca$h This started with a new headlight and fender Celeritas In Conficiendo
gbhs72 is offline  
post #10 of 22 (permalink) Old 08-07-2019, 08:33 AM
Senior Member
 
Join Date: Jan 2001
Location: St. Louis
Posts: 7,641
 
Reasonable price for oem = good find. BUT worth dbl checking/confirming fitment with them as SS all came with disc:

Product Description
1977-1996 Chevrolet Caprice Impala SS, SEDAN ONLY, Rear Drum, Rear Axle Brake Line Set - 2pc - OE Steel

\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear). Finally, wait for it... LT-4 knock module!
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, yes again... LT-4 knock module!
96 Black is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Chevy Impala SS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome