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Zerk Grease Fitting on T140J Speedo Drive #97659
08/03/06 1:46 pm
08/03/06 1:46 pm
Joined: Nov 2005
Posts: 7,259
Back on the mainland!
JubeePrince Online content OP

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JubeePrince  Online Content OP

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Back on the mainland!
Questions: This fitting apppears to be different from a standard grease fitting, i.e. the swingarm.....

1) Is there an adapter that attaches to a standard grease gun fitting?

2) Do they make an adapter with a 90 degree angle, or am I going to have to bite the bullet and remove the wheel? It's a tight fit with the zerk fitting between the brake rotor and caliper...

3) How much grease? Assuming it's not an exact science.....like the swingarm, until it starts oozing??

I can tell you that I've never greased it in the 4 years I've had the bike (I know, I know)......I've checked and greased the cable....everything good there....tired of watching my speedo needle jump around + or - 10 mph, so I thought I'd give this a try......


TIA,

Steve Prince


'77 T140J
"Vintage Bike". What's in your garage?

"The paying customer is always right."

Fitting round pegs into square holes since 1961...
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Re: Zerk Grease Fitting on T140J Speedo Drive #97660
08/03/06 2:02 pm
08/03/06 2:02 pm
Joined: Feb 2004
Posts: 1,956
Flint,Mich
norbsa48503 Offline
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norbsa48503  Offline
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Posts: 1,956
Flint,Mich
Driving out old grease with new grease bad. Using grease zerk bad. Pull it off wash it out re-pack it. Good.


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
http://decentcycles.com
Re: Zerk Grease Fitting on T140J Speedo Drive #97661
08/03/06 2:10 pm
08/03/06 2:10 pm
Joined: Nov 2005
Posts: 7,259
Back on the mainland!
JubeePrince Online content OP

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JubeePrince  Online Content OP

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That's what I was afraid of.......gotta pull the wheel.......oh, yeah.....and the left hand muffler! laughing

Hmmmm.......maybe I'll add this to my list of winter projects.....then I can repack the wheel bearings while I have everything off........

Cheers,

Steve prince


'77 T140J
"Vintage Bike". What's in your garage?

"The paying customer is always right."

Fitting round pegs into square holes since 1961...
Re: Zerk Grease Fitting on T140J Speedo Drive #97662
08/03/06 2:16 pm
08/03/06 2:16 pm
Joined: Feb 2004
Posts: 1,956
Flint,Mich
norbsa48503 Offline
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norbsa48503  Offline
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Flint,Mich
Well it may be 30 min. work but since new speedo drives are big bucks consider practice for that road side repair. Make a list of the tools needed for this you will need them in a kit for the bike.


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
http://decentcycles.com
Re: Zerk Grease Fitting on T140J Speedo Drive #97663
08/03/06 4:05 pm
08/03/06 4:05 pm
Joined: Jun 2006
Posts: 331
Maryland, USA
2
2twins Offline
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Maryland, USA
Quote:
Originally posted by JubeePrince:

Hmmmm.......maybe I'll add this to my list of winter projects.....then I can repack the wheel bearings while I have everything off........

Cheers,

Steve prince
Steve, until you pull the wheel,
you can get an adaptor at an auto parts store, looks like a fat hypodermic needle that'll fit on your grease gun. With a bit of finesse, you can use this to freshen up the grease in that small zerc. Cost about $3, plus a rag or too...


Woody 2Twins
Re: Zerk Grease Fitting on T140J Speedo Drive #97664
08/03/06 4:27 pm
08/03/06 4:27 pm
Joined: Oct 2003
Posts: 11,140
North Georgia, USA
RF Whatley Online content
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RF Whatley  Online Content
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North Georgia, USA
JP -
You can fit a standard 1/4-28 Zerk in place of the English fitting if you like. (I use LocTite on the threads to seal in the grease and keep from having to place any torque on the fitting to hold it in place.) However, this is NOT the type device that you pump full of grease until you see it, like a tie-rod end. You are only lubing the gear set in the very bottom of the unit, so it only requires about 1 teaspoon of grease per year.

I don't ever disassemble this unit because they ARE so valuable. I do prefer to lube them while I have the wheel off for other requirements. That way I can wipe off any excess grease. I use the same chassis lube that I use on the swing arm.

BTW... Lubing this unit is not going to stop your needle bounce. It's simply 2 meshing gears. Needle bounce is casued by rusty drive cables and worn out instrument heads.


Hope this helps! bigt


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

RF Whatley
Cornelia, GA

"Shop Boy" at Rodi British Bikes
Re: Zerk Grease Fitting on T140J Speedo Drive #97665
08/03/06 4:29 pm
08/03/06 4:29 pm
Joined: Jul 2005
Posts: 291
Lehigh Valley, PA
M
Mike V Offline
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Mike V  Offline
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M
Joined: Jul 2005
Posts: 291
Lehigh Valley, PA
Is this a Veglia speedo drive? Has anyone here actually had one of these apart for repacking?

Mike V.

Re: Zerk Grease Fitting on T140J Speedo Drive #97666
08/03/06 5:11 pm
08/03/06 5:11 pm
Joined: Feb 2004
Posts: 1,956
Flint,Mich
norbsa48503 Offline
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norbsa48503  Offline
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Flint,Mich
If it was you who last serviced the piece four years ago I bet you couldn't remember the type you used. Real old grease is like sand and vasoline not a good lube. Yes, if you lubed it last year with a known lube you could add a teaspoon. But in this case remove the felt, wash out, add the teaspoon spin and wipe out excess. Than press in the cleaned and re-oiled felt. If you realy want to fix it drill out the rivits retaining the stamped retainer and replace them with 2-56 countersunk screws. Now all the parts can be seperated for a good cleaning. When ever you like.Now that's a winter project.


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
http://decentcycles.com
Re: Zerk Grease Fitting on T140J Speedo Drive #97667
08/03/06 8:10 pm
08/03/06 8:10 pm
Joined: Nov 2005
Posts: 7,259
Back on the mainland!
JubeePrince Online content OP

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JubeePrince  Online Content OP

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Joined: Nov 2005
Posts: 7,259
Back on the mainland!
Thanks for all the feedback and ideas.....

Richard - so it won't cure my needle bounce, thanks for the tip! I do know this has been an issue on this bike since my dad had bought it brand new...there was a period, not sure how long when he didn't even have the speedo connected.....perhaps it is the instrument itself.....the cable is good.....no discernable kinks, bulges or bends when I pull it out......lubed with high-temp lithium grease....of course, there could be a burr or two in the cable housing.....perhaps before I consider the instrument is faulty, I'll replace the cable and housing with a new one...

I seem to recall some kind of test you can do on the cable where you hold the ends together and rotate and look for the cable 'jumping'....not sure how that works exactly.......

Mike V - it's not a Veglia....I don't think they were introduced until 1979......it's Smiths with the blue and white NVT (Norton-Villiers Triumph) logo......

Norbsa - thanks for the project ideas..... bigt


Cheers,

Steve Prince


'77 T140J
"Vintage Bike". What's in your garage?

"The paying customer is always right."

Fitting round pegs into square holes since 1961...
Re: Zerk Grease Fitting on T140J Speedo Drive #97668
08/04/06 12:15 am
08/04/06 12:15 am
Joined: Oct 2003
Posts: 11,140
North Georgia, USA
RF Whatley Online content
BritBike Forum member
RF Whatley  Online Content
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Joined: Oct 2003
Posts: 11,140
North Georgia, USA
JP -
Square off a piece of 16p nail, chuck it up in a reverseable drill motor and give the instrument a good 30 second shot. I think you'll see it's the "head" and not a cable/drive issue.

There are several places listed that rebuild. I used Nisonger, and although not the cheapest, both my gauges were rock solid when they returned. I'm convinced they were looking and working BETTER than new.

bigt


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

RF Whatley
Cornelia, GA

"Shop Boy" at Rodi British Bikes
Re: Zerk Grease Fitting on T140J Speedo Drive #97669
08/04/06 12:51 am
08/04/06 12:51 am
Joined: Nov 2005
Posts: 7,259
Back on the mainland!
JubeePrince Online content OP

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JubeePrince  Online Content OP

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Posts: 7,259
Back on the mainland!
RF -

I've seen them (Nisonger) listed here before..I'll chuck up that 16 penny and see what's what....thanks for the nudge in the right direction!

Cheers,

Steve Prince


'77 T140J
"Vintage Bike". What's in your garage?

"The paying customer is always right."

Fitting round pegs into square holes since 1961...
Re: Zerk Grease Fitting on T140J Speedo Drive #97670
08/04/06 1:38 am
08/04/06 1:38 am
Joined: Jun 2002
Posts: 913
Jaffrey, NH, USA
Peter Quick Offline

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Jaffrey, NH, USA
The greese fitting on a Smiths Speedo drive (which is too small for a regular grease gun to work) can be replaced with one that can be serviced. The thread on the fitting is a 2BA thread (not 1/4 inch). British Tools & Fasteners (they advertize on this site) has replacement greese fittings for the Smiths Speedo drives. Ask for a 2BA straight grease nipple. They cost something like $1.50 each. A good investment bigt By the way I have had good fast service (2 to 3 week turn around) and good prices on my last 2 speedo repairs at a place called Foreign Speedo repair in California, San Diego I think. Peter


check out: www.bsaunitsingles.com
2500 BSA part numbers with inventory in stock just for the unit singles!
Re: Zerk Grease Fitting on T140J Speedo Drive #97671
08/05/06 12:26 am
08/05/06 12:26 am
Joined: Jul 2006
Posts: 16
NE AZ
O
olbooker Offline
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Joined: Jul 2006
Posts: 16
NE AZ
Steve,

I've always used one of these for greasing in tight places in automotive repair:

http://www.thetoolwarehouse.net/shop/THE-418.html

Might be available on most tool trucks.

The previous owner of my bike gave me the name and number of Nisonger as the one that supposedly fixed his speedo. After putting the generic replacement inner cable in, it still bounces after around 30 mph. I'll try the drill trick on mine to determine where the trouble is.

Anyone, Is there a source for the felt ring in the drive?

Oscar


'76 Bonneville 750
Re: Zerk Grease Fitting on T140J Speedo Drive #97672
08/05/06 12:36 am
08/05/06 12:36 am
Joined: Oct 2003
Posts: 11,140
North Georgia, USA
RF Whatley Online content
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RF Whatley  Online Content
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Joined: Oct 2003
Posts: 11,140
North Georgia, USA
Quote:
Originally posted by PeterQ:
The thread on the fitting is a 2BA thread (not 1/4 inch).
Peter -
No one said the thread was 1/4 inch, I only stated the 1/4-28 Zerk would go in there. It only catches about 2 threads in soft alunimum at most, so accurate thread following is not really a requirement.

Obviously, the best deal is to simply buy the correct grease gun!

Enjoy.

bigt


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

RF Whatley
Cornelia, GA

"Shop Boy" at Rodi British Bikes
Re: Zerk Grease Fitting on T140J Speedo Drive #97673
08/05/06 1:47 am
08/05/06 1:47 am
Joined: Jun 2002
Posts: 913
Jaffrey, NH, USA
Peter Quick Offline

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RF, How is it obvious that a special grease gun would be a better deal than a $1.50 grease fitting??? What do one of those guns cost? I was just trying to be helpful to Steve. I try to avoid cross threading hackery even on those small parts that don't matter. laugh I'd rather not be known to the next guy owning my bike as the DPO!! Peter


check out: www.bsaunitsingles.com
2500 BSA part numbers with inventory in stock just for the unit singles!
Re: Zerk Grease Fitting on T140J Speedo Drive #97674
08/05/06 4:51 am
08/05/06 4:51 am
Joined: Jul 2005
Posts: 1,919
new jersey usa
J
John RGS Offline
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John RGS  Offline
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J
Joined: Jul 2005
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new jersey usa
The felt washer for the drive can be cut from a remnant from a fabric or upholstery store. They have lots of felt thicknesses. They usually give them to you.

To test the instrument, I cut the end 2 inches off an old cable and put that in a drill. Don't run it too fast or it can go kaput!


,_o
_ -\_<,
(*)/'(*)

NOPGS #2
Re: Zerk Grease Fitting on T140J Speedo Drive #97675
08/05/06 10:42 am
08/05/06 10:42 am
Joined: Jun 2006
Posts: 804
Halifax, Butt end of Europe
andrewinpopayan Offline
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Posts: 804
Halifax, Butt end of Europe
An inner cable that is *SLIGHTLY* too long will cause bounce. The is due to the inner cable pushing against the bottom of the speedo rotor bearing and causing the rotor to catch intermittently on the stator. Smiths "Chronometrics" are something else. and if you have one, take it off your bike and lock it in a strongbox

Here is a link to how normal speedos work,
http://www.madehow.com/Volume-7/Speedometer.html
http://www.mustangandfords.com/techarticles/75259/photo_18.html


99% of carb problems are electrical.

1959 3TA

BMW R1150 Oilhead
Re: Zerk Grease Fitting on T140J Speedo Drive #97676
08/05/06 3:49 pm
08/05/06 3:49 pm
Joined: Mar 2005
Posts: 82
B
beagleplex Offline
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Joined: Mar 2005
Posts: 82
Grease fittings have been addressed here:

What to do with those crazy shaped fittings?


I believe the SMITHS decal advises to lube the drive with " Two Shots From a Hand Gun" which means (try and restrain yourselves RF and RGS!) a small tool-kit style push-type grease gun, not a high pressure pump-style gol-durn USA tractor gun. That is why a Zerk is shaped the way it is, to use hydraulic pressure within the nozzle to grab and hold the fitting so you don't have to force the gun against the fitting. To switch to a Zerk in this application is like using braided stainless hose for a drinking straw. Even a chain saw shop will have a suitable grease gun for the bar tip bearings that will work fine in this application.
By the way, the drive housings are Zinc alloy. Zerks will tear right out if you are not careful. Not from high pressure grease, but from side loading the fitting with a big clumsy tractor gun.
The small, elegant fittings are there for a reason- you just need the right tool for servicing them.


Moderated by  John Healy 


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