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#30400 - 10/22/07 5:12 am A65 Crank Pinion Removal  
Joined: Dec 2002
Posts: 3,227
leon bee Offline
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leon bee  Offline
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arkansas
I had to get rude with one today, much harder to get off than the last one I tried. I had modified an inexpensive 2 jaw puller, but you have to grind it too thin to fit in those little slots. Now I'm trying to visualize what kinda tool might actually work to pull a really stubborn pinion off. What has worked for somebody? Thanks!

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#30401 - 10/22/07 2:16 pm Re: A65 Crank Pinion Removal  
Joined: Dec 2003
Posts: 23
Pat fribley Offline
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Pat fribley  Offline
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Ohio
I used a Norton crank pinion puller to get mine off.

#30402 - 10/23/07 2:10 am Re: A65 Crank Pinion Removal  
Joined: Jan 2007
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66 Bonny Offline
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66 Bonny  Offline
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NJ
Leon,
I once got creative with this and I know I'm gonna catch hell from somebody..... Took a steering wheel puller and used the two opposing slots. Took two bolts appox. 3" long that fit through the slots and ground the heads down till they were almost flat, then took one side down till the radius was slightly flattened (experiment till it fits nice behind the pinion). Put them through the puller facing down and use two nuts/washers on the other end looking up at you. Slide the two ground down heads under the pinion slots and screw down the puller. Worked like a charm! But to be quite honest, it's probably easier to buy the right tool. beerchug Cheers,
Bob

#30403 - 10/23/07 3:02 am Re: A65 Crank Pinion Removal  
Joined: Jan 2004
Posts: 3,515
DMadigan Online content
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DMadigan  Online Content
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ca, us
The stock puller had two pivoting jaws with hooks on the end to fit in the slots. A sleeve screwed down over the jaws to keep them firmly around the gear. That way the hooks were completely in shear.

#30404 - 10/23/07 4:33 am Re: A65 Crank Pinion Removal  
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leon bee Offline
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leon bee  Offline
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arkansas
I found a pic of the genuine BSA tool, right there in the shop manual. Looks like that thing would be expensive if you found one.

I guess that gear I ruined might be expensive, too?

#30405 - 10/23/07 10:02 am Re: A65 Crank Pinion Removal  
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66 Bonny Offline
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66 Bonny  Offline
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NJ
Leon,
I might have a spare crank with the gear still on it. smile
beerchug Cheers
Bob

#30406 - 10/23/07 1:00 pm Re: A65 Crank Pinion Removal  
Joined: Aug 2001
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Mr Mike Offline
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Mr Mike  Offline
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Cape Carteret, NC
I took an inexpensive two jaw puller and ground down the feet so the just fit. I then used a SS hose clamp around the jaws to keep them from popping off. About ten minutes work and it worked perfectly.

Mr Mike

#30407 - 10/23/07 1:55 pm Re: A65 Crank Pinion Removal  
Joined: Apr 2007
Posts: 44
Bob Johnson in Oregon Offline
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Bob Johnson in Oregon  Offline
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Troutdale, Oregon
After braking two pullers, my dentist gave me a small saws all for my dremal. I cut as close to the crank as I could and then gave the slot a whack with a chisel. It came right
Off! Of course I had to buy a new gear. Not fun at all...........


Bob

#30408 - 10/24/07 12:06 am Re: A65 Crank Pinion Removal  
Joined: Dec 2002
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leon bee Offline
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leon bee  Offline
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arkansas
I resisted using my Dremel. Damaged the gear anyway.

Bonny: I'll email you.

#30409 - 10/24/07 1:01 am Re: A65 Crank Pinion Removal  
Joined: Feb 2004
Posts: 1,956
norbsa48503 Offline
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Flint,Mich
For the desperate and cheap hacks. Two household butter knifes yep pound them in 180 degrees apart gets it far enough away to grab and pull. You will need to stone the burrs this makes on the gear and crank. You to can be the DPO. Utility knife blades are too hard and thin for this move but will part a tight case. Maybe we can start a list of moves for hacks by (Chisss), short for cold chisel.


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
#30410 - 10/24/07 5:26 pm Re: A65 Crank Pinion Removal  
Joined: Aug 2001
Posts: 3,348
BONZO R.I.P. Offline
In Remembrance
BONZO R.I.P.  Offline
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Posts: 3,348
Michigan, USA
I have the puller for Triumph twins (been so long I cant recall if it is pinion or cam gear puller) it cost less than $100 at the time , it didnt work with the BSA though,I've never seen this tool offered for BSA. I seem to recall reading in a manual , maybe factory or haynes?? about prising the gear with a pair of screwdrivrs similar to what Norbsa describes? A bit of propane heat may help , especially if an overzealous type installed the gear, but I have never come across one this determined to stay in situ . The most elaborate I have had to go is pretty much what Mr.Mike describes , but I just used a cheap and expendable harborfreight puller , I'm a cheap sonuvvagun , I'd probably machine and harden a new set of jaws for a cheap puller before spending the money to replace or ruining one of my good pullers .

#30411 - 10/24/07 5:55 pm Re: A65 Crank Pinion Removal  
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Alex Offline
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Alex  Offline

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Seattle
This is the puller I got from Advance Auto

I had to grind the jaws a little (Don't get 'em hot when you do, they'll get soft) and put a hoseclamp around the legs to keep them from splaying apart.


A smattering:
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#30412 - 10/24/07 11:58 pm Re: A65 Crank Pinion Removal  
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leon bee Offline
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arkansas
Two big screwdrivers and a little careful heat is what I ended up doing. But I had intended to be sophisticated this time and do it "right". This gear was much tougher than the last one I did. My pullers mighta worked if I'd heated it first, but I didn;t really want to get the crank hot I guess.

#30413 - 10/25/07 1:15 am Re: A65 Crank Pinion Removal  
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John RGS Offline
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John RGS  Offline
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new jersey usa
One of the manuals I've seen somewhere has a picture of the two screwdriver method. I used that for years until I made up my own pry bars out of a couple of straight brake spoons. Like Greg and Leon say, a little careful coaxing and you shouldn't need a puller. The only time I've had to use a puller on a BSA pinion was when the crank was butchered out beyond the pinion seat. I suppose one like Alex's would be spiffy to have though! Faster too. But I'm old school.


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

NOPGS #2
#30414 - 10/25/07 11:17 pm Re: A65 Crank Pinion Removal  
Joined: Aug 2001
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Mr Mike Offline
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Cape Carteret, NC
Mine looks just like Alex's, but you do need the hose clamp to keep the jaws on the gear.
Mr Mike

#30415 - 10/27/07 11:50 am Re: A65 Crank Pinion Removal  
Joined: May 2006
Posts: 68
SERGE A65 Offline
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SERGE A65  Offline
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Posts: 68
FRANCE
Leon,

The crankshaft pinion is sometimes very difficult to extract, and you are likely to deteriorate the crankcase, if you do not have an appropriate tool. If you can weld, it will be quite easy to make this tool, for almost nothing. See the tool I use successfully, which has been manufactured with a little iron dish, two nuts and screws. The notches were machined with a grinder, before welding. To avoid accidental slippage, the tool is tight on the slots, with a locking pliers. It is a great pleasure to work on the A65, with its own tools.




1965 A65 STAR
1968 A65 LIGHTNING
#30416 - 10/27/07 12:02 pm Re: A65 Crank Pinion Removal  
Joined: May 2006
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SERGE A65 Offline
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FRANCE
I wanted to say flat iron. A dish will not be useful for this job.


1965 A65 STAR
1968 A65 LIGHTNING
#30417 - 10/27/07 3:24 pm Re: A65 Crank Pinion Removal  
Joined: Dec 2002
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leon bee Offline
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arkansas
I like it Serge.


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