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#97601 - 08/02/06 1:32 am Setting up twin leading shoes  
Joined: Jul 2006
Posts: 200
trophy bride Offline
BritBike Forum
trophy bride  Offline
BritBike Forum

Joined: Jul 2006
Posts: 200
N.S.W. Australia
Hi..new shoes in my 69 TLS front brake...how to know both shoes are contacting the same? I disconnected lever joining the 2 arms, set up the first shoe so it was just rubbing via front brake cable adjusting, and then adjusted arm so second shoe seemed to just start rubbing about same amount...all this after already using brake for a short ride, so should hjave been centered OK...is there a better way, and how to know you are getting 100% contact on a skimmed drum...looked up "arcing" in search, but only got ignition stuff.


1969 TR6R..original and aged...like me... unmolested...unlike me

GIBSON FENDER AND NATIONAL Guitars 1933-1964..original aged and unmolested
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#97602 - 08/02/06 4:34 am Re: Setting up twin leading shoes  

**DONOTDELETE**
Unregistered
Anonymous
Unregistered


...and the service manual says???

#97603 - 08/02/06 6:08 am Re: Setting up twin leading shoes  
Joined: Jul 2006
Posts: 200
trophy bride Offline
BritBike Forum
trophy bride  Offline
BritBike Forum

Joined: Jul 2006
Posts: 200
N.S.W. Australia
and the service manual,the haynes and the clymer says nothing about setting upthe linkages...thats why Im asking.....


1969 TR6R..original and aged...like me... unmolested...unlike me

GIBSON FENDER AND NATIONAL Guitars 1933-1964..original aged and unmolested
#97604 - 08/02/06 6:13 am Re: Setting up twin leading shoes  
Joined: Jul 2006
Posts: 200
trophy bride Offline
BritBike Forum
trophy bride  Offline
BritBike Forum

Joined: Jul 2006
Posts: 200
N.S.W. Australia
Actually the manuals say nothing to the point I wonder how many of the TLS's on the road are set up with both shoes coming into contact together....I thought the point of this forum was to ask questions that a lot of are not answered by the service manuals>>>>>>


1969 TR6R..original and aged...like me... unmolested...unlike me

GIBSON FENDER AND NATIONAL Guitars 1933-1964..original aged and unmolested
#97605 - 08/02/06 11:04 am Re: Setting up twin leading shoes  
Joined: Jan 2005
Posts: 429
gs750 Offline
BritBike Forum member
gs750  Offline
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Joined: Jan 2005
Posts: 429
New York
Slacken the rod adjuster nut and remove the rear pivot pin. Slip a spanner over each cam nut and push each shoe just against the drum (I foound SWMBO helpfull at this point to hold the spanners). Readjust the length of the adjuster rod, put back in place and replace the pin. beerchug


1971 Triumph T100C
1974 Honda XL350
1982 Suzuki GS750T
2000 Honda VFR800FI
#97606 - 08/02/06 12:23 pm Re: Setting up twin leading shoes  
Joined: Mar 2005
Posts: 9,971
John Healy Online content
John Healy  Online Content



Joined: Mar 2005
Posts: 9,971
Boston, Massachusetts
...and the service manual says???
------------------------------------------------------------------------
Actually the correct Triumph Service manual covering the period where the TLS brake was fitted does cover adjustment.

I quote:
"At this stage it may be necessary to adjust the cam lever rod assembly. To do so the rod adjuster nut should be slackened (seeFig. F5) and the rear pivot pin removed. The help of a second operator will be needed at this stage. Each cam lever should be applied until the shoes are in contact withthe drum. The easiest method is by fitting a spanner to each cam nut.

The threaded fork end should be adjusted to accomodate the revised distance between the brake cam levers. The rod assembly should then be refitted, and the locknut retightened. reconnect the brake cable and adjust as described in Section F4."

or as gs750 so eloquently put it:
"Slacken the rod adjuster nut and remove the rear pivot pin. Slip a spanner over each cam nut and push each shoe just against the drum (I foound SWMBO helpfull at this point to hold the spanners). Readjust the length of the adjuster rod, put back in place and replace the pin. "

The points being:
If working alone you need the correct shop manual (with Supplements). And BritBike is a good source of information.

Thank you gs750
john


#97607 - 08/02/06 1:07 pm Re: Setting up twin leading shoes  
Joined: Oct 2003
Posts: 11,110
RF Whatley Online content
BritBike Forum member
RF Whatley  Online Content
BritBike Forum member

Joined: Oct 2003
Posts: 11,110
North Georgia, USA
..... and the best part, Trophy Bride, is that you need...

One, maybe two, studly twenty yo guys in sequined thongs to help you hold those brake cams while you make the adjustments..... to the brake shoes.

laughing


Don't hide 'em, Ride 'em !!

RF Whatley
Cornelia, GA

"Shop Boy" at Rodi British Bikes
#97608 - 08/02/06 1:18 pm Re: Setting up twin leading shoes  

**DONOTDELETE**
Unregistered
Anonymous
Unregistered


I thought it was in there somewhere!
Let me add that the shoe application force should be as close to real world as possible, not just a light push, to get any "springiness" or compliance out of the linkage etc.

IIRC some sources also recommend that the axle be loosened when the shoes are fully applied? IDR why but read this several times.

#97609 - 08/02/06 2:26 pm Re: Setting up twin leading shoes  
Joined: Feb 2004
Posts: 1,956
norbsa48503 Offline
BritBike Forum member
norbsa48503  Offline
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Joined: Feb 2004
Posts: 1,956
Flint,Mich
Panic is dead on here. The backing plate hole for the axle has small clearance it takes great force to center and hold this while tighting the axle. Any low pressure adjustments before this is done is practice. On Norton's I end up holding the connected lever with all my might while using the adjuster for the other shoe to move my hand holding the lever. Just touching don't get it. You can get into the chicken or egg thing here, Depends on how you radias the shoes. If your using a lathe and the backing plate with shimms the above method works if you are using the sand paper rubber cemented into the drum way you have many more stepps to use.If there is a pinch bolt on the slider it gets tightened after a short ride.


norbsa
1960 TR6
1963 Super Rocket
1965 650 Star
1966 441
1968 Thunderbolt
1969 Twinkle 250
1972 Fastback
1974 Roadster
1970 S.S
Way too many BSA's not named
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