Home 
Home Search search Menu menu Not logged in - Login | Register
> Jensen Healey & Jensen GT Tech > Brakes > Brake drum removal

 Moderated by: Greg Fletcher
New Topic Reply Printer Friendly
Brake drum removal  Rating:  Rating
AuthorPost
 Posted: 08-05-2005 02:56 am
  PM Quote Reply
1st Post
George
Member
 

Joined: 04-05-2005
Location: Boyds, Maryland USA
Posts: 88
Status: 
Offline
I cannot seem to get one of my brake drums off, the other side came off ok, but this side is really stuck on there.  Any tricks of the trade out there?

Back To Top PM Quote Reply  

 Posted: 08-05-2005 03:46 am
  PM Quote Reply
2nd Post
Dan Collier
Member


Joined: 03-17-2005
Location: Placentia, California USA
Posts: 36
Status: 
Offline
On the Lockheed brake system, I believe you can take a large flat screwdriver and release the internal adjuster. Look at PN 94250 "Lever-upper-shoe" in the Delta Catolog. Then use a rubber mallot to tap it off.


Dan Collier
74JH 14381 2.2L
Jensen-Healey Presevation Photo Gallery

 

Back To Top PM Quote Reply

 Posted: 08-05-2005 05:07 pm
  PM Quote Reply
3rd Post
Greg Fletcher
Administrator


Joined: 03-11-2005
Location: Lake Nacimiento, California USA
Posts: 421
Status: 
Offline
Be sure the parking brake is off (obvious, but sometimes overlooked). On my old '73 JH with the Girling rear brakes, I always had a hard time getting the drums off, even after turning the adjuster down. I used a rubber mallet to forcefully tap all around the drum to remove them.

Back To Top PM Quote Reply  

 Posted: 08-06-2005 08:22 pm
  PM Quote Reply
4th Post
George
Member
 

Joined: 04-05-2005
Location: Boyds, Maryland USA
Posts: 88
Status: 
Offline
Thanks for the tips, but I have still been unable to budge the thing.  I have been whacking around the back lip of the drum off and on for a few days now  using a block of wood and a hammer and still nuffin' happens.  

Thinking caps, boys.  Any other thoughts?

Last edited on 08-06-2005 08:22 pm by George

Back To Top PM Quote Reply

 Posted: 08-06-2005 09:59 pm
  PM Quote Reply
5th Post
Mark Rosenbaum
Member


Joined: 03-12-2005
Location: Kingman, Arizona USA
Posts: 532
Status: 
Offline
The possibilities I see are (a) the drum is rusted solid to the flange on the axle shaft or to the backing plate or both, (b) the drum has been ground away by worn-out brake shoes that now project into the body of the drum, (c) the shoes are rusted solid to the drum, or some combination thereof.

The solution to (a) is to apply an actual penetrating oil such as Liquid Wrench to each of the wheel studs and to the space between the drum and axle flange, and anywhere else you think rust might be lurking.  Then give the outer face of the drum a few good hammer whacks between each pair of studs -- the parts should ring at least a little, which allows the penetrating oil to creep in a bit further.  Repeat this several times a day for several days, then see if the drum can be removed.  You could also try alternately heat from a propane torch, and ice cubes, applied to the face of the drum, possibly in conjunction with penetrating oil.

The solution to (b) is to release the self-adjuster by sticking a screwdriver into the hole provided for that purpose, then repeatedly tap / whack the backing plate and drum to encourage the brake shoes to retract.  Penetrating oil sprayed directly into the brake mechanism may be of benefit here.

The solution to (c) is pretty much the same as for (b) except that you will also want the penetrationg oil to creep between the drum and brake shoes.

If all the above fails, you'll probably have to expend the drum.  Try really forceful hammer whacks directly on the inner edge of the drum.  If that doesn't work, you might try to cut the drum into two or more sections using high-speed cutoff wheel.  I wouldn't use a cutting torch unless I no longer cared about the axle shaft or anything on the backing plate.

Good luck.

Back To Top PM Quote Reply  

 Posted: 08-06-2005 11:06 pm
  PM Quote Reply
6th Post
John Young
Member


Joined: 03-16-2005
Location: Ohio USA
Posts: 17
Status: 
Offline
There is the possiblitie of using a torch to heat the drum and it will expand enough to pop off. I have done this a few years ago and you can hear the drum pop.

Be careful with heat too much will distort the drum.

Back To Top PM Quote Reply

 Posted: 08-07-2005 01:46 am
  PM Quote Reply
7th Post
George
Member
 

Joined: 04-05-2005
Location: Boyds, Maryland USA
Posts: 88
Status: 
Offline
I figure it is probably (a), as the brake drum spins fine and the brakes also worked well.  So I will proceed accordingly, with the penetrant and then move on to heat as needed.  Hopefully that will get it.  Thanks to all and I will report back as the situation warrants.

Back To Top PM Quote Reply  

 Posted: 08-09-2005 02:38 pm
  PM Quote Reply
8th Post
George
Member
 

Joined: 04-05-2005
Location: Boyds, Maryland USA
Posts: 88
Status: 
Offline
Once again the list comes thru!  A few days of PB Blaster and then just little heat resulted in a very satisfying "POP" and off it came.  Thanks to all.

Back To Top PM Quote Reply

Current time is 12:07 pm  
> Jensen Healey & Jensen GT Tech > Brakes > Brake drum removal Top




UltraBB 1.172 Copyright © 2007-2011 Data 1 Systems