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1960 Matchless G12 Clutch/Shifter problems #725510
02/14/18 12:15 am
02/14/18 12:15 am
Joined: Feb 2018
Posts: 26
WA
W
WilliamLangton Offline OP
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WilliamLangton  Offline OP
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Joined: Feb 2018
Posts: 26
WA
Hi all!!
First time posting to this great site.
I just purchased a 1960 G12 650, online. Owner said it ran perfect. Yeah, right. I managed to get it running, but when trying to put it in gear, it just chattered, as if the clutch was not engaged. I pulled the side cover and can see the pressure plate releasing from the clutch pack. Also, when just stationary, not running, I can only move the shifter from 1st to 2nd. It's jammed after that. I am a car mechanic, hot rod builder, and am unfamiliar with the workings of this transmission. What do you all think? Somehow, I get the feeling ill be diving deep into this gearbox. Thanks in advance. I am going to drink heavily in preparation for the news,yet still remain hopeful.
William
Seattle, Wa


william langton mccormick
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Re: 1960 Matchless G12 Clutch/Shifter problems [Re: WilliamLangton] #725516
02/14/18 12:44 am
02/14/18 12:44 am
Joined: Aug 2001
Posts: 2,139
Oztralia
R
Rohan Offline
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Rohan  Offline
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R
Joined: Aug 2001
Posts: 2,139
Oztralia
Not getting gears without the engine running is not really a sign of anything.
Try spinning the back wheel while clicking through the gears is a better test, if you must.
(engine not running while you do this !)

Old clutches often need 'clearing' 1st thing in the morning.
Pull the clutch lever in, and kick it until the clutch frees off, and spins freely.
Then try starting it, and seeing if it goes cleanly into 1st gear.
And goes through all the gears as you speed off down the road.
Gotta get used to british bikes foibles...
Have fun, hopethishelps.

Re: 1960 Matchless G12 Clutch/Shifter problems [Re: Rohan] #725517
02/14/18 12:50 am
02/14/18 12:50 am
Joined: Feb 2018
Posts: 26
WA
W
WilliamLangton Offline OP
BritBike Forum member
WilliamLangton  Offline OP
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W
Joined: Feb 2018
Posts: 26
WA
Rohan,
Your optimism is much appreciated. Kick it until the clutch frees off and spins freely? So, start it w clutch lever in, and then what is meant by, frees off?
So this is not uncommon? What's the cause? I know the bike has sat for a while, and the chain cover was full of milky oil.

Thanks again!
William


william langton mccormick
Re: 1960 Matchless G12 Clutch/Shifter problems [Re: WilliamLangton] #725521
02/14/18 1:05 am
02/14/18 1:05 am
Joined: Dec 2013
Posts: 4,098
ohio, usa
kevin roberts Offline
fefsa
kevin roberts  Offline
fefsa
Joined: Dec 2013
Posts: 4,098
ohio, usa
the plates inside the clutch basket stick together solid when they're cold because of the oil. pull in the lever to take the spring pressure off, then kick. all the foot force goes to the driven plates, while the driving plates are held still by engine compression

the motor will turn over and over as you kick it until eventually the clutch will suddenly come free, and you will whack your shin on something.

if it's sat for a long time the plates might be well and truly glued, and you'll have to take the pressure plate off and winkle them apart.


i have no idea what i'm doing.
Re: 1960 Matchless G12 Clutch/Shifter problems [Re: kevin roberts] #725523
02/14/18 1:28 am
02/14/18 1:28 am
Joined: Feb 2018
Posts: 26
WA
W
WilliamLangton Offline OP
BritBike Forum member
WilliamLangton  Offline OP
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W
Joined: Feb 2018
Posts: 26
WA
Kevin,
Thank you for this explanation--makes total sense. A mentioned, the oil in the chain case was like a chocolate milkshake. I will take the plates out, and try to figure out what a winkle is. smile

What type of oil do you recommend?

Thanks again,
William


william langton mccormick
Re: 1960 Matchless G12 Clutch/Shifter problems [Re: WilliamLangton] #725525
02/14/18 1:43 am
02/14/18 1:43 am
Joined: May 2005
Posts: 3,827
ohio
shel Online content
BritBike Forum member
shel  Online Content
BritBike Forum member
Joined: May 2005
Posts: 3,827
ohio
As soon as you try to walk the plates out you'll understand what he means by winkle. You'll have to wiggle them out side to side, top to bottom, a little at a time. Atf works good in the chain case, most seem to prefer the Ford type F fluid


When given the choice between two evils I picked the one I haven't tried before
Re: 1960 Matchless G12 Clutch/Shifter problems [Re: shel] #725527
02/14/18 2:13 am
02/14/18 2:13 am
Joined: Feb 2018
Posts: 26
WA
W
WilliamLangton Offline OP
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WilliamLangton  Offline OP
BritBike Forum member
W
Joined: Feb 2018
Posts: 26
WA
Shel,
Roger that. Yeah Type f has more friction modifiers--good stuff. Any recommendation for my initial set up on the 3 clutch basket springs and the center stud w locknut?

Thanks,
William


william langton mccormick
Re: 1960 Matchless G12 Clutch/Shifter problems [Re: WilliamLangton] #725542
02/14/18 8:39 am
02/14/18 8:39 am
Joined: Nov 2009
Posts: 2,175
Netherlands
Peter R Offline

BritBike Forum member
Peter R  Offline

BritBike Forum member
Joined: Nov 2009
Posts: 2,175
Netherlands
Hello William, and welcome to this forum.
At the risk that you have already found this info yourself, here's a link to a pdf manual of your bike.
Note that this covers the twin as well as the single AJS/Matchless models.
http://archives.jampot.dk/book/Work...rkshop_Instruction_Manual_all_models.pdf


Peter.
1974 Commando 850
1972 Trident T150T
1961 Goldie DBD34
1969 Benelli 250 sport special
Re: 1960 Matchless G12 Clutch/Shifter problems [Re: Peter R] #725578
02/14/18 4:52 pm
02/14/18 4:52 pm
Joined: Feb 2018
Posts: 26
WA
W
WilliamLangton Offline OP
BritBike Forum member
WilliamLangton  Offline OP
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W
Joined: Feb 2018
Posts: 26
WA
Awesome! Thanks Peter


william langton mccormick
Re: 1960 Matchless G12 Clutch/Shifter problems [Re: WilliamLangton] #725593
02/14/18 6:01 pm
02/14/18 6:01 pm
Joined: Dec 2013
Posts: 4,098
ohio, usa
kevin roberts Offline
fefsa
kevin roberts  Offline
fefsa
Joined: Dec 2013
Posts: 4,098
ohio, usa
i thought "winkle" was a normal word.


i have no idea what i'm doing.
Re: 1960 Matchless G12 Clutch/Shifter problems [Re: WilliamLangton] #725629
02/14/18 10:23 pm
02/14/18 10:23 pm
Joined: May 2005
Posts: 3,827
ohio
shel Online content
BritBike Forum member
shel  Online Content
BritBike Forum member
Joined: May 2005
Posts: 3,827
ohio
I've winkled before so I understood


When given the choice between two evils I picked the one I haven't tried before
Re: 1960 Matchless G12 Clutch/Shifter problems [Re: WilliamLangton] #725659
02/15/18 2:54 am
02/15/18 2:54 am
Joined: Mar 2013
Posts: 340
Irene, South Africa
robcurrie Offline
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robcurrie  Offline
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Posts: 340
Irene, South Africa
I've worn winkle pickers before, so I also understood.

Rob C

Re: 1960 Matchless G12 Clutch/Shifter problems [Re: WilliamLangton] #725664
02/15/18 4:38 am
02/15/18 4:38 am
Joined: Dec 2013
Posts: 4,098
ohio, usa
kevin roberts Offline
fefsa
kevin roberts  Offline
fefsa
Joined: Dec 2013
Posts: 4,098
ohio, usa
Quote
Winklepickers, or winkle pickers, are a style of shoe or boot worn from the 1950s onward by male and female British rock and roll fans. The feature that gives both the boot and shoe their name is the very sharp and long pointed toe, reminiscent of medieval footwear and approximately the same as the long pointed toes on some women's high-fashion shoes and boots in the late 2000s.

The extremely pointed toe was called the winkle picker because in England periwinkle snails, or winkles, are a popular seaside snack which is eaten using a pin or other pointed object to extract the soft parts out of the coiled shell carefully, hence the phrase: "to winkle something out", and based on that, winklepickers became a humorous name for shoes with a very pointed tip. Other countries had other humorous names, e.g. in Norway and Sweden they were called myggjagere/myggjagare, literally "Mosquito hunter". They are still popular in the raggare and rockabilly subcultures. In some parts of the U.S. they are called "roach stompers."


i had never heard of winkle pickers.

although in america we have what we call waffle stompers

[Linked Image]


i have no idea what i'm doing.
Re: 1960 Matchless G12 Clutch/Shifter problems [Re: WilliamLangton] #725971
02/18/18 4:42 am
02/18/18 4:42 am
Joined: Feb 2018
Posts: 26
WA
W
WilliamLangton Offline OP
BritBike Forum member
WilliamLangton  Offline OP
BritBike Forum member
W
Joined: Feb 2018
Posts: 26
WA
Well,
I winkle picked those clutches apart and lo and behold, she freed right up. Gave them all a good cleaning and scuffing w 320 grit, filled the case w Type F and shes roaring like a two dollar whore on a trampoline. Thank you all so much. Now, onto another simple question:

The Smiths Gauge reads 32545. Since I have not ridden this bike yet, I can't know if the last digit reads in tenths or not. So does it have 3,254.5 miles, or 32,545??
Thanks in advance!!!

Winkle on.


william langton mccormick
Re: 1960 Matchless G12 Clutch/Shifter problems [Re: WilliamLangton] #725979
02/18/18 5:17 am
02/18/18 5:17 am
Joined: Aug 2012
Posts: 620
Oregon
D
Dana_twin Offline
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Dana_twin  Offline
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D
Joined: Aug 2012
Posts: 620
Oregon
I have never known any Plumstead product to make 32K, I am sure someone has though.


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