1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
Sponsored by:
Sponsored by: Moser

caliper problems

Thread Tools
 
Search this Thread
 
  #1  
Old 12-10-2018, 12:11 PM
POPAJON's Avatar
POPAJON
POPAJON is offline
Fleet Mechanic
Thread Starter
Join Date: Aug 2010
Location: Cranbrook, Ont., Canada
Posts: 1,574
Likes: 0
Received 4 Likes on 4 Posts
caliper problems

OK I got a '77 f-150 2wd. Just replaced the front rotors, calipers and pads. NOW the problem... I can't seem to get the tension spring and bar that holds the caliper in place back into place. Am I doing something wrong here?? They came out easy enough. HELP !!!
 
  #2  
Old 12-10-2018, 12:36 PM
RedFordRob's Avatar
RedFordRob
RedFordRob is offline
Freshman User
Join Date: Dec 2018
Posts: 27
Likes: 0
Received 0 Likes on 0 Posts
Make sure the caliper is sitting nice on the perch at the bottom. Pivot the caliper and pads in place. Lineup the bar and spring and tap it in with a hammer.
 
  #3  
Old 12-10-2018, 01:24 PM
wyrm73's Avatar
wyrm73
wyrm73 is offline
Laughing Gas
Join Date: Oct 2015
Location: Dallas, OR
Posts: 974
Received 97 Likes on 78 Posts
x2 on above advice. It does take a hammer to put them back in. You shouldn't have to wail on them, but some percussive maintenance is required.
 
  #4  
Old 12-10-2018, 01:35 PM
meangreen92's Avatar
meangreen92
meangreen92 is offline
Logistics Pro
Join Date: Jul 2005
Posts: 4,094
Received 79 Likes on 71 Posts
X2 on making sure the other end of the caliper is properly engaged with the spindle.

Definitely light taps to get it started. The deeper you get the spring and block in there, the harder you can hit them, and they will likely need to be hit harder, the deeper they go in. But again as stated above, you certainly don't want any full-force blows with the hammer.
 
  #5  
Old 12-11-2018, 12:42 AM
1TonBasecamp's Avatar
1TonBasecamp
1TonBasecamp is offline
Lead Driver
Join Date: Jul 2017
Location: San Jose, CA
Posts: 8,333
Likes: 0
Received 731 Likes on 585 Posts
Are the sliding bars and springs new by any chance? I found out a few years ago (on a 4wd though, in case they are different) that there are either at least two different sizes of those, OR they simply made them wrong.
We could not use the new ones because it was obvious immediately they were not going to go in without a fight. After a few healthy hits with the hammer, we stopped and re-grouped.
Using the old ones fixed the issue and they went back in like normal. I actually have had them go in by hand (still took a firm push) but like the others said a slight tap with a hammer is normal.

Did you orient the springy thingy correctly, with it's "ears" pointing down over the sliding bar?
Sorry if we're talking about different setups. My main experience is with the 4wd version, but I have worked on a 2wd or two over the years and thought I remembered the layout was basically the same.

Good luck.

Paul
 
  #6  
Old 12-11-2018, 09:21 AM
POPAJON's Avatar
POPAJON
POPAJON is offline
Fleet Mechanic
Thread Starter
Join Date: Aug 2010
Location: Cranbrook, Ont., Canada
Posts: 1,574
Likes: 0
Received 4 Likes on 4 Posts
Thx for the suggestions and replies ALL are helpful, Yes they are NEW slides and springs I will try the old ones after I clean 'em up a bit. I should mention that I have done TBears brake upgrade. So THAT may have something to do with it also BUT I have my doubts. Anyway if you wanna see what I have done there are pics in the Ontario Chapters thread.
 
  #7  
Old 12-11-2018, 03:52 PM
POPAJON's Avatar
POPAJON
POPAJON is offline
Fleet Mechanic
Thread Starter
Join Date: Aug 2010
Location: Cranbrook, Ont., Canada
Posts: 1,574
Likes: 0
Received 4 Likes on 4 Posts
Well there was NO difference between the old and NEW
slider and spring. I did however get the slider in place with some good whacks with the hammer. I didn't get the spring in though. NO room !!!! I will leave it as is and when I do fire her up and test the brakes I WILL GO easy and keep checking for play B4 I do any serious driving. There is NO movement in the caliper in any direction so any thoughts on this ??
 
  #8  
Old 12-11-2018, 06:32 PM
GLR's Avatar
GLR
GLR is online now
FTE Legend
Join Date: Sep 2003
Location: NY and VA
Posts: 49,420
Received 854 Likes on 772 Posts
You need that slider spring, Jon. Is the V of the caliper lining up with the spindle bracket? Lubed the slider and spring? Compare the old caliper with the new.
Looking at the pics in the Ontario Chapter, I know you've done the above. Just wonder if the caliper is different.
 
  #9  
Old 12-11-2018, 06:38 PM
GLR's Avatar
GLR
GLR is online now
FTE Legend
Join Date: Sep 2003
Location: NY and VA
Posts: 49,420
Received 854 Likes on 772 Posts
Just looked at the rockauto site, it shows a different number for 73-9 F150
 
  #10  
Old 12-11-2018, 06:45 PM
GLR's Avatar
GLR
GLR is online now
FTE Legend
Join Date: Sep 2003
Location: NY and VA
Posts: 49,420
Received 854 Likes on 772 Posts
The boxes show 18-4084, 83 Rock shows 184034,33 the 8 mistaken for a 3 ???
 
  #11  
Old 12-11-2018, 06:49 PM
POPAJON's Avatar
POPAJON
POPAJON is offline
Fleet Mechanic
Thread Starter
Join Date: Aug 2010
Location: Cranbrook, Ont., Canada
Posts: 1,574
Likes: 0
Received 4 Likes on 4 Posts
George the only thing different in the calipers is the size of the piston, everything seems to in alinement. I have a neighbor who is a certified mechanic. I will ask him to have a looky see at what is wrong wrong. I will keep you and the rest of the gang posted. Going for my pre-op tomorrow and surgery on Thursday. Thanks for the reply Bud ttyl Play safe and stay warm.
 
  #12  
Old 12-11-2018, 06:49 PM
tbear853's Avatar
tbear853
tbear853 is offline
Lead Driver
Join Date: Feb 2004
Location: Shenandoah Valley
Posts: 7,400
Received 1,288 Likes on 1,089 Posts
Originally Posted by POPAJON
Thx for the suggestions and replies ALL are helpful, Yes they are NEW slides and springs I will try the old ones after I clean 'em up a bit. I should mention that I have done TBears brake upgrade. So THAT may have something to do with it also BUT I have my doubts. Anyway if you wanna see what I have done there are pics in the Ontario Chapters thread.
Should fit OK. I know that I reused OEM, just slid a file across flat surfaces to clean off rust, light coat of high temp grease, tapped into place easily. Make sure caliper is down on pads and rotor, and engaged proper with mount on other end/side away from locks.

http://i220.photobucket.com/albums/d...ps73a49a14.jpg
 
  #13  
Old 12-11-2018, 06:55 PM
GLR's Avatar
GLR
GLR is online now
FTE Legend
Join Date: Sep 2003
Location: NY and VA
Posts: 49,420
Received 854 Likes on 772 Posts
Best wishes and prayers for you on your surgery, Jon


PS: Found that # also goes to a 77 Custom (184084,3)
 
  #14  
Old 12-11-2018, 08:14 PM
1TonBasecamp's Avatar
1TonBasecamp
1TonBasecamp is offline
Lead Driver
Join Date: Jul 2017
Location: San Jose, CA
Posts: 8,333
Likes: 0
Received 731 Likes on 585 Posts
Originally Posted by tbear853
...just slid a file across flat surfaces to clean off rust, light coat of high temp grease, tapped into place easily. Make sure caliper is down on pads and rotor, and engaged proper with mount on other end/side away from locks.
This.

Originally Posted by POPAJON
I did however get the slider in place with some good whacks with the hammer. I didn't get the spring in though. NO room !!!! I will leave it as is and when I do fire her up and test the brakes I WILL GO easy and keep checking for play B4 I do any serious driving.
That's an incorrect installation then. Not a good thing.

Originally Posted by POPAJON
There is NO movement in the caliper in any direction so any thoughts on this ??
Yes. DON'T DRIVE IT THAT WAY!
Even as a temporary way to get around the neighborhood, that's not really a good solution. Certainly no need to test it on a short drive because it will give you no indication of it's long term function and may actually leave you stranded.
So again, don't do that. Fix it right before you drive it.

Something's wrong. It may be something you're overlooking, or more likely you're doing it correct and the new parts are the typical modern imported crap that someone engineered to be "close enough to the metric conversions in the Chinese translations to be fine on old vehicles" or whatever their thinking is.
Tolerances are all over the place and I've run into at least three situations where the disc brake pads were too thick to allow the caliper over the rotor, and two where the shoes would not let the drum fit over them.
Nothing says that a caliper can't be made too big to fit into the notches.
Definitely worth taking a file to dress down both the caliper and the bracket, to make sure that surfaces are smooth, clean and free of anything not bare metal.

Good luck. With everything!

Paul
 
  #15  
Old 12-11-2018, 10:41 PM
jimlj's Avatar
jimlj
jimlj is offline
Posting Guru
Join Date: Jun 2002
Location: where the deer and antelo
Posts: 1,203
Likes: 0
Received 1 Like on 1 Post
You have to have the spring in there. No spring and you WILL have problems with the brakes. You either have the wrong parts (caliper and or hardware) or they are installed wrong,
 


Quick Reply: caliper problems



All times are GMT -5. The time now is 05:16 PM.