The BSA A7 & A10 Forum
23.05. 2012 07:31 *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Best Picture poll still open for votes
 
   Home   Help Search Login Register  
Pages: 1 [2]   Go Down
  Print  
Author Topic: Quick question, exhaust bracket + cable shortening  (Read 1576 times)
0 Members and 2 Guests are viewing this topic.
BSA_54A10
Forum Oracle
*****

Karma: 11
Posts: 727


WWW
« Reply #20 on: 21.02. 2010 12:53 »

Lead free solder is a wank, forced upon industry by wankers with absolutely no idea what they are doing because in their infantile minds any person that comes within 1 meter of any form of lead will turn into a pillar of salt ( and be added to a big mac ).
Tin based solders are horribly complex alloys and usually contain Antimony, Bismuth. Cadminium, even Arsenic.
Soft silver solders are even worse, however a tiny amount of silver 0.005 to 0.01 % added to a lead based solder will add considerably to its' strength.
A lot of lead based solders containing silver are marketed as "silver solder", such is the impact of the multi million dollar snow job foistered upon the public by the oil companies to turn lead into Satin itself.

None of the "new" solders have the mechanical strength and wide range of applications as good old perfectly safe lead tin solder, very few are recycleable and all of them will not tollerate the tiniest amount of surface contamination.

Tinmans solder is the same as plumbers solder except that it usually contains a little iron which extends the freezing temperature range ( mushy period ) and substantially reduces dissolution of copper soldering tips oft erroniously called errosion. So is not the best for cables.
Hard plumbers solder is the way to go ( 70% Sn + 30 % Pb) and what I use on my cables applied with either a big electric iron ( and  mean big ) or better still a 4oz copper bit heated with a blow lamp.
I am not a fan of directly heating the cable with a torch for several reasons all of which revolve around the lack of proper temperature control and the fact that steel starts to form tough surface oxides from around 200 deg C ( we call them temper colours and a good example is blueing of your exhausts). You want the joint to be just hot enough to melt the solder and no more.
And yes, Bakers flux, liquid of paste is a must, as is washing it off in boiling water after you have finished as it is corrosive in nature.


And finally if you are going to buy & fit new drums to your cables the get the free floating type, not the directly soldered on type. Free floating drums will last just about forever as they allow the cable to rotate inside the drum which prevents the cable from fracturing just where the cable exits the drum and actaually transmits more of your applied force to whatever is on the other end of the cable.

If you do not know what a free floating drum looks like have a look at those universal cables that are supplied with 1/2 dozen different sized drums that slip over the cable and bear against a pear ( or ball ) on the end of the cable. Well they are the same thing but without the slot (although you can use the slotted ones ) 
Logged

Bike Beesa
Trevor
Stephen Arsenal
A's best friend
***

Karma: 2
Posts: 181



« Reply #21 on: 21.02. 2010 13:55 »

OK ,fitted the exhaust,but they doŽnt seem to be in harmony,the chain side sticks out much further than the right hand side.I had to put the bracket on the outside of the hole,otherwise the exhaust(even bent in the right position) cannot move far enough into the middle-the nut tightning the front footrest blocks this. er on the subject of soldier the wire,IŽm going to keep on searching for a correct length one,or instead of putting a new nipple on,IŽll just measure the correct length,and tie tha cable into a neat ball and then give it the the welder to make it into a proper sphere,so that the MOT doŽnt complain(must be more secure than cutting the cable and re soldering ?)granted not cricket,but patience is wearing thin,just need to get through MOT and then can get the correct cable when it turns up on evil bay.


* PICT5915.JPG (335.59 KB, 2048x1536 - viewed 50 times.)

* PICT5917.JPG (332.03 KB, 2048x1536 - viewed 40 times.)

* PICT5917.JPG (332.03 KB, 2048x1536 - viewed 32 times.)
Logged

ho ho ho
Stephen Arsenal
A's best friend
***

Karma: 2
Posts: 181



« Reply #22 on: 21.02. 2010 14:00 »

oophs,Hi guys,the soldering issue is way over my head,but I Žll show it to my german welder.Other pics
Logged

ho ho ho
Stephen Arsenal
A's best friend
***

Karma: 2
Posts: 181



« Reply #23 on: 21.02. 2010 14:01 »

,


* PICT5916.JPG (437.42 KB, 2048x1536 - viewed 40 times.)

* PICT5918.JPG (366.49 KB, 2048x1536 - viewed 33 times.)
Logged

ho ho ho
MG
Forum Oracle
*****

Karma: 20
Posts: 906



« Reply #24 on: 21.02. 2010 14:09 »

Hi Steve!

First of all: I think welding the cable is not a good idea, because the cable will be heated far too much delivering unpredictable results in tensile strength and ductility. Soldering a new nipple on is absolutely okay when done properly. You can ask in any shop that sell and repair bicycles and/or mopeds, they usually have some in stock. If you have one and don't dare to do it yourself, I can offer you that you send me your cable, let me know the length you need and I do it for you, if you want to.
There's also a firm in Germany that makes any cable you want. I'm sure they can also change the length of yours. If you want their address, I can look it up for you.

Ref the exhausts: I think the end of the exhaust pipe should be lower. Then you can move the silencers further in and it should be okay. Usually, if you push the pipe into the exhaust port of the head, it naturally goes down on the other end. So either the bend is not correct or you just have to push it further back on top. Hard to tell without the head. I would wait for the head to return, fit everything and try again. If it still doesn't work then, there's something wrong with the pipe.
Logged

1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

"Upon seeing the shadow of a pigeon, one must resist the urge to look up." (Confucius)

Austria
G/F DAVE
Guest
« Reply #25 on: 21.02. 2010 14:20 »

Hi, Stephen having looked at your photos I would say the silencer bracket is out of shape.The whole silencer looks like it needs twisting clockwise (looking from rear ) and the bracket needs to be on inside of frame mount. Also the foot rest mount looks to long.Personally I would remove the bracket from silencer then get  both silencers matching each other level wise you can hold the silencer where you want it with masking tape/wire, then either bend the bracket to fit or make a new one.I dont think there is anything wrong with the exhaust system only the mounting brackets.These thing can take a while to get right but are worth the effort. I think also I would have the cylinder head fitted before I done the bracket.Stick with it you,ll get there in the end smiley4 Dave..
Logged
bsa- bill
Forum Oracle
*****

Karma: 21
Posts: 1779



« Reply #26 on: 21.02. 2010 14:32 »

Steve - I have similar problem with the silencers, partly due to the crank on the kickstart lever not being enough to clear the silencer on the timing side.
I got them pretty near even by using washers and a bit of lateral thinking re the brackets - there are options such as put one on the inside of the holder on one side and one on the outside on the otherside also you can turn turn the bracket to get the crank in it to put the silencer further in or out.
Thanks guys for the advice re solder pots and so forth ( apologies Steve for  hijacking your post to some degree)

All the best - Bill
Logged

All the best - Bill
MG
Forum Oracle
*****

Karma: 20
Posts: 906



« Reply #27 on: 21.02. 2010 14:40 »

Forgot to mention: www.louis.de also sells various cables and nipples.
Logged

1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

"Upon seeing the shadow of a pigeon, one must resist the urge to look up." (Confucius)

Austria
Stephen Arsenal
A's best friend
***

Karma: 2
Posts: 181



« Reply #28 on: 21.02. 2010 16:01 »

Hallo MG,thank you for your offer,IŽd be be more than happy to send you both cables to shorten if you have the time.Naturally IŽd pay the post both ways,if you could send me your @ then I could contact you direct.I doŽnt really want to go to the local welders or bike shops,this wire shortening is too specialized (still not sure why all the firms in internet haveŽnt been able to produce the correct length,the front wheel doeŽsnt move,the rear one OK).cheers steve.       Stephen.Smith@gmx.de
Logged

ho ho ho
lawnmowerman
A-Clairvoyant
****

Karma: 6
Posts: 304


1959 Super Rocket. Kent, England


« Reply #29 on: 21.02. 2010 17:27 »

Hi Steve

I have recently had loads of problems with pipe and silencer fit. I put twin goldies and new pipes on my 59 Super Rocket (see my previous posts). A very small movement at the head end has quite a dramatic effect at the tail end and, for what it is worth, I would wait until the head is on before fitting the pipes and silencers.
The distributer who supplied the system said "well you have always got to "fit" these systems to old bikes - they never bolt straight on." In the end I had to take an angle grinder to the pipes and take about 25-30mm off each end to get them to line up. I also had to make brackets to rear-set the goldies.

Good luck with the bike - looking forward to seeing photos when it is finished.

Jim
Logged

1959 A10 SR
1938 Wolseley 14/60

Too old to Rock and Roll but too young to die  (Jethro Tull 1976)
PartTrader
Guest
« Reply #30 on: 27.07. 2010 20:45 »

Hi All,

I'm going through the same silencer issues on my 61 SuperRocket.  I have had to place the bracket on the outside of the frame mounting on the chain side to accommodate the center stand and the gear lever side is just a nightmare as the kickstart hits whatever I do.  I'm looking for a kickstart with a greater offset as originally my bike had a siamese system and was ok.   
Logged
bsa- bill
Forum Oracle
*****

Karma: 21
Posts: 1779



« Reply #31 on: 17.08. 2011 17:02 »

Hi parTrader
hope you got your kickstart sorted, in the course of my projects prolonged metamorph I've got a few kickstart quadrants and noticed there is some (if little ) difference in the length of the kickstart side of the shaft, also the gearbox cover bearing for the kickstart tends to walk out on mine so I cut an old timing side bush and slipped it over the shaft between kickstart lever and gearbox cover, keeps the bearing in and gets full length of the shaft outwards for lever clearing the silencer.

On the subject of cable soldering I have at last got a solder pot (17.50 UK pounds plus 7.50 postage from China where else however two or three cables and it's paid for itself)  goes upto 400 (probably to hot) also it's a pretty big pot but possible not a bad thing for dipping an inch or cable into it.

Now just got to get some tinmans solder - thanks again for the advise 
Logged

All the best - Bill
BSA_54A10
Forum Oracle
*****

Karma: 11
Posts: 727


WWW
« Reply #32 on: 18.08. 2011 12:02 »

1) Markus is talking about the 0.5% to 1.5% Au/Pb solders when he says "silver solder"
2) always shorten the drum end of the cable, not the ball end.
Buy a "solderless" drum and keep it in your tool kit.
If the cable pulls through at the handlebar end ( the drum ) you can always slip the cable into the solderless drum ( clamp on ) and carry on.
If the cable pulls through the ball end it is much more difficult to bodge on the side of the road.
The ball end needs to rotate when you apply pressure so keep it clean & oiled.
Even better is to fit a free floating drum on the handlebar end so both ends of the cable can rotate.
Your cable will last a lot longer and your brakes will work better.

Logged

Bike Beesa
Trevor
bsa- bill
Forum Oracle
*****

Karma: 21
Posts: 1779



« Reply #33 on: 18.08. 2011 17:20 »

taken on board Trevor - thanks
Logged

All the best - Bill
manosound
Outside Chicago, IL
Forum Oracle
*****

Karma: 15
Posts: 1678



« Reply #34 on: 18.08. 2011 20:42 »

This is a real late comment, but further to what Trevor said about lead in solder (back in February of last year), I covet closely my thousand-year-old spool of tin/lead electronic solder. If it was really bad, I would be a lot worse than people think I am  wink , having used my mouth as a third hand to hold solder for about 30 years (not continuously, of course).

Richard L.
Logged

muskrat
Forum Oracle
*****

Karma: 25
Posts: 1876


Lake Conjola NSW Oz


« Reply #35 on: 18.08. 2011 22:44 »

And if you chewed hard enough it would act as fillings for your teeth.  eek eek
Cheers
Logged

Only young once, immature forever. Now how can I make this go faster. '51 A7 plunger, '57 A7SS now A10, '71 A65 Lightning (gone to god) '76 XT500, '83 CB1100F, next project a '64 A65.
Pages: 1 [2]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.16 | SMF © 2011, Simple Machines Valid XHTML 1.0! Valid CSS!