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MG TD TF 1500 - Brake Pedal Bushing
|I am replacing the bushings in my pedal box and have found there is not much clearance for full forward movement of the brake pedal as it hits the pedal box if spaced too far to the right.(The Moss spacers are too thick) Even after the left spacer has been made to the correct thickness it looks like the pedal could still bind if the bronze bushing shifts. |
Has anyone tapped the bottom of the brake pedal and used a set screw to make sure the bushing doesn't move sideways, its a tight press fit but over time could shift.
|Sorry...I'm having a little problem understanding your question....The forward movement of the brake pedal, should only be about 3/4", limited by the master cylinder.|
I can't imagine the pedal box interfering with that little bit of movement.
This is an image of my pedal box, before I repaired it.
Can you tell me where the limitation occurs?
|Here's an image from the side , after repairs.
|Edward, here is a pic from Dave Braun's site that is a good example. The brake pedal moves forward into the recessed area I have outlined. If the lever is too far to the right and forward it hits. You can see here that this has probably happened in the past as the corner is bent or curled down, mine is exactly the same where it hit in the past as well. The clutch lever is keyed and locked into place but over time the brake bushing can move.
|If I am not mistaken, there is a circlip on the outside end of the pedal shaft that keeps the shaft from shifting right. There should be no movement left and right of the pedal shaft. Cheers - Dave|
|Since I am quite serious about protecting the copyright of my photos, I'm going to take the opportunity here to state that the image published from my website in Mr. Taylor's post although hit has had its copyright notice removed, is indeed copyrighted and its use is by permission.|
|Are you worried about the bushing moving in the pedal? Even if grossly sloppy and worn out, pretty much no way it can move anywhere.|
|Sorry Dave didn't mean to infringe on any copyrights I only cropped the area because it had the exact same bend as my frame. I did state it came from your site but will make sure to use my own shots in the future. Sorry again.|
|Richard, you can use my shots and post them here... And elsewhere as long as they still have the copyright. And it was nice of you to give attribution, I just don't want to see my images floating around because one of my friends borrowed it and then, someone else, not realizing it was copyrighted, used it. If a person does not defend his trademarks and copyrights, he can loose them.|
|I suspect that Richard's reference to the 'thickness' of the bushing is what I would call the 'length'. Bud|
|If I remember correctly, the bushings are a press fit into the frame, and require a bushing driver to install.|
If the top of the pedal only moves about 3/4" , with a full-on brake, the base of the pedal moves much less than
that...The only way that I can see the base of the pedal running into the box, is if there is no resistance on the master cylinder, due to pressure loss....
This pre-repair photo shows the original position of the pedals, relative to the box....It would take a LOT of movement to hit the box.
|Here is a pic to show more what I mean. While adjusting the thickness of the pedal spacers I figured I could also move the lever by moving the bushing. The bushing is pushed out excessively to make my point. To prevent it from possibly moving in the future I am going to drill and tap for a 4-40 set screw to lock the bushing in place. I know its probably over-kill but it will definitely not move.
|I replaced my pedal bushing. As I remember it seemed to be a pressed fit. |
|The new bushings are too long, they should be ground/filed flat to the edge of the pedal. With the washers and all assembled, they also touch and ride on the pedal, since the edge of pedal and bushing is flush. It would be totally impossible for the bushing to move. Just my opinion.|
|They are press fit, and, as George says, even if the bushing can move, there's nowhere to go...Look at my old image above...there is virtually no space between the pedal mounts....|
If you feel you absolutely have to put in the set screw, then be sure and use blue loc-tite on it...You won't want it coming out in the box....
I'm looking forward to seeing a photo of the pedal positions, in place, to better understand what you had to do.
This thread was discussed between 10/01/2013 and 12/01/2013
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