Brake band relining - a question for the adventurous - Page 2 - PeachParts Mercedes-Benz Forum

rs899 · #16 04-22-2011, 06:35 PM

I don't , at least I don't right now unless/until I disembowel the 77 240D.

There must be a business proposition there as we can get transmissions for $40 on a good day at u-pullit (but not 5-speeds). Some things here are ridiculously cheap by European standards, and some things over there are just not found over here in any quantity.

I assume there are no such things as self-serve breakers in the UK or on the continent- I never saw any in quite a few kms of putting around France, Ireland and Italy.

Stretch · #17 04-23-2011, 05:09 AM

Quote:

Originally Posted by rs899

...
I assume there are no such things as self-serve breakers in the UK or on the continent- I never saw any in quite a few kms of putting around France, Ireland and Italy.

They do exist in the UK and the prices are often a bit cheaper - but in my experience you need to be a regular customer to get the better prices.

In Holland you can go to some places that let you remove bits but the majority cater for newer cars. The Dutch tend to chuck stuff away quite quickly as the labour rates are so high. They seem to feel that it costs too much to get things fixed. I guess the majority of the "classic" vehicles here are imported from warmer countries where people have been able to keep them going for longer. If you see a classic car for sale in Holland that was originally registered here the sellers often make a big point of it - I don't really know why, Holland is only a bit dryer than the UK...

47dodge · #18 04-23-2011, 06:44 AM

Rebonding could be a problem, as well as getting the correct lining material. Most tractors have riveted linings. For a tractor, sure try it, for a car that you depend on, maybe not.

Stretch · #19 04-23-2011, 10:28 AM

Quote:

Originally Posted by 47dodge

Rebonding could be a problem, as well as getting the correct lining material. Most tractors have riveted linings. For a tractor, sure try it, for a car that you depend on, maybe not.

I feel the same way but I was kind of hoping that someone out there on peach parts would say "Oh I've been using this glue for years and I've been cooking them in my fan oven at home"!

Stretch · #20 04-29-2011, 01:55 PM

I've found this for brake shoes:-

http://www.anabond.com/rubber_classi_3.htm

Being rubber based however it won't last for long in a bath of ATF...

http://www.omnexus4adhesives.com/bc/transportation-channel/index.aspx?id=technology

has loads of information

...the search continues

rs899 · #21 04-29-2011, 02:17 PM

Quote:

I feel the same way but I was kind of hoping that someone out there on peach parts would say "Oh I've been using this glue for years and I've been cooking them in my fan oven at home"!

We are waiting for you to try it.

The number of guys who have explored the innards of a 722 that post here is in the single digits...

Stretch · #22 04-29-2011, 02:22 PM

Quote:

Originally Posted by rs899

We are waiting for you to try it.

The number of guys who have explored the innards of a 722 that post here is in the single digits...

Oh bugger - one small step for man eh?

leathermang · #23 04-29-2011, 03:21 PM

And some of those were lying.... LOL

Stretch · #24 04-29-2011, 04:44 PM

Quote:

Originally Posted by leathermang

And some of those were lying.... LOL

What's the point in lying - if you don't know say so.

Stretch · #25 05-03-2011, 08:44 AM

Ohhh I feel just like whunter - using "answer" in the title.

But I do indeed have the answer to my question.

I've just spoken with a chap who relines these things for a living.

He seems to think that these brake bands are made of a paper based friction material. This paper based stuff is glued into place with a thermosetting lacquer. Apparently you need to be very quick when gluing it.

Whilst he says you might be able to get away with using a domestic oven as the curing temperature is at about 200 degrees C - I kind of think that the success rests on the word thermosetting...

See:-

http://en.wikipedia.org/wiki/Thermosetting_polymer

If you don't get the temperature right - well it probably won't be strong.

He reckons it would cost more to reline the old ones (if he was to do it) than it would be to buy the new ones. It is a labour intensive process - you pay more for the time than the stuff.

Although he didn't say it - he was far too polite - I need to stop being cheap.

{Even so if in the future I get on a brake lining course somewhere and I learn how to...}

layback40 · #26 05-03-2011, 09:18 AM

Army,
Being one of those on here who have had a 722 in pieces as well as a few other auto trans, my comment in a previous post still stands.
If the band needs re-lining then it has probably been used that many times that the spring steel backing is close to its fatigue life.
You dont need to revisit the trans in 20k miles!!
new is best.

Stretch · #27 05-03-2011, 10:35 AM

Quote:

Originally Posted by layback40

Army,
Being one of those on here who have had a 722 in pieces as well as a few other auto trans, my comment in a previous post still stands.
If the band needs re-lining then it has probably been used that many times that the spring steel backing is close to its fatigue life.
You dont need to revisit the trans in 20k miles!!
new is best.

I know - I know - I know...

The Mrs is getting a bit shirty about all the money spent so far - she has a point - so I thought perhaps this was a place where I could be cheap.

I'll have to find another place to be cheap now!

But just think if this was more of a DIY job I think the savings would have been worth the gamble.