clutch hub drive pins

Post Reply
FL58
Posts: 49
Joined: Thu Nov 28, 2013 5:19 pm
Bikes: duo glide 1958

clutch hub drive pins

#1

Post by FL58 » Mon Aug 31, 2015 10:35 pm

Hello guys,
now rebuilding the clutch on my 58 duo glide, I have to change my clutch hub pins because they are worn out.
Is it rather easy to do it or does this job needs special tools to be done.
In Palmer's book he is talking about a pin holder to set into the vise, but I can't find what it looks like.
All your ideas on the best way to change the drive pins are truly welcome.
thank you



RUBONE
Moderator
Posts: 5999
Joined: Sat Nov 15, 2008 4:09 am
Bikes: Multiple H-D, Ducati, BMW, Triumph, BSA,...
Has thanked: 107 times
Been thanked: 1045 times

Re: clutch hub drive pins

#2

Post by RUBONE » Mon Aug 31, 2015 10:51 pm

Replacing hub studs is quite straightforward. The studs are peened in place, so removing the end of them by grinding or drilling the end of the stud allows them to be driven out with a pin punch. The new pins are driven into place and the ends peened to hold them. A ball peen hammer works just fine to peen them. The tricky part is just supporting the end of the stud so it stays in place while peening. A variety of methods work for that, but basically you need to keep the stud in place without damaging it while the end is peened. Search in the knowledge base and you will find various members solutions to that problem.
Robbie

Lowbikemike
Posts: 233
Joined: Thu May 07, 2009 3:49 am
Bikes: 1962 FL
1987 FXSTC
1995 FLHR
Location: Columbia, IL
Has thanked: 2 times
Been thanked: 40 times

Re: clutch hub drive pins

#3

Post by Lowbikemike » Tue Sep 01, 2015 12:19 am

I just completed this on my 62. Its really pretty easy.

I found that after grinding down where the studs were peened and I also needed to drill them slightly. They holes they fit into are chamfered on the backside, so even after grinding off the peened area they are still hard to drive out.

When installing you just need to ensure you don't bend or damage the ends of the pins or that they walk out while you are peening them.

The biggest problem I had was remembering the order or pins and studs.

RUBONE
Moderator
Posts: 5999
Joined: Sat Nov 15, 2008 4:09 am
Bikes: Multiple H-D, Ducati, BMW, Triumph, BSA,...
Has thanked: 107 times
Been thanked: 1045 times

Re: clutch hub drive pins

#4

Post by RUBONE » Tue Sep 01, 2015 1:18 am

The biggest problem I had was remembering the order or pins and studs.
2-1,2-1,3-1.

Bigincher
Posts: 2789
Joined: Tue Dec 18, 2007 2:10 pm
Bikes: 1941/59 EL
1952 FL
1977 FLH
1994 Fatboy
Has thanked: 21 times
Been thanked: 103 times

Re: clutch hub drive pins

#5

Post by Bigincher » Tue Sep 01, 2015 6:47 am

When I did it, I used a super-secret pin holder: my buddy.

FL58
Posts: 49
Joined: Thu Nov 28, 2013 5:19 pm
Bikes: duo glide 1958

Re: clutch hub drive pins

#6

Post by FL58 » Wed Sep 02, 2015 7:31 am

Thank you for your help.
I'll try that as soon I'll receive my new drive pins and let you know.
Sincerely

flatboy1950
Posts: 451
Joined: Wed Dec 14, 2011 7:04 am
Bikes: 1948 Pan 61
1942 sv 74 x 4
1948 sv 74 x 1
1943 42U + sidecar with 6800 miles on the clock from new.
Location: South Africa
Been thanked: 59 times

Re: clutch hub drive pins

#7

Post by flatboy1950 » Wed Sep 02, 2015 12:26 pm

Here is the pin riveting fixture I made.
Length of hex bar has a neat fitting hole drilled down the centre , about 2 mm shorter than the pin.
Other end has a longer , stepped hole for the longer , threaded pins.
Clutck pin rivetting fixture 001 (1024x576).jpg
You do not have the required permissions to view the files attached to this post.

Robert Luland
Posts: 911
Joined: Sun Sep 02, 2007 7:56 pm
Bikes: 1922JD, 1937 ULH, 1946FL 1948FL, 1957FL, 1960FLH, 1965XLCH, 1995 FLHT
Location: Hoboken, NJ
Been thanked: 39 times
Contact:

Re: clutch hub drive pins

#8

Post by Robert Luland » Wed Sep 02, 2015 10:30 pm

There is several ways to skin this cat. The factory used a orbital riveter with a spur set on it. This basically is pneumatic pressure being put on the set as it spins it pushes the metal around and does the job with out distorting the other end. By spur pattern I mean look at the peen on the original and you will see the pattern in dented in it. When I do them I take the easy way out which the everyday guy can do in his garage. Drill a 3/16" hole about an 1/2" deep in the end of the stud. Now just use a tapered center punch and nail it. I prefer to tack weld them in place. I mean your never going to replace them again in your lifetime. Food for thought, Bob L

58flh
Posts: 3337
Joined: Sat Jun 26, 2010 1:54 pm
Bikes: 1958flh 1969sporty,had a knuckle but sold back to original owner
Location: NEW JERSEY
Has thanked: 195 times
Been thanked: 265 times

Re: clutch hub drive pins

#9

Post by 58flh » Thu Sep 03, 2015 1:08 pm

Another thing I do is put a fiber disc on to ALIGN the 3-or 5 clutch adj. studs/Just make everything nice & clamp the disc.Do those forst.Then you can switch to your longer stud guide holder & repeat.When PEENING its not just smash-it & next.You need to have the hardened bars for that have peened head reliefs in them.Its the olny way to make a good TIGHT holding PEEN.You can always make your own peening tools & then heat to 500-degrees & quench them in oil or water.I have made sets for this & brake-linings.----Respectfully----Richie

FL58
Posts: 49
Joined: Thu Nov 28, 2013 5:19 pm
Bikes: duo glide 1958

Re: clutch hub drive pins

#10

Post by FL58 » Sat Oct 03, 2015 11:13 pm

Hello guys,

job is done !
thank you for your explanations and to Flatboy1950 for your pin riveting fixture
sincerely
photo 1.JPG
photo 2.JPG
photo 3.JPG
You do not have the required permissions to view the files attached to this post.

Post Reply

Return to “Clutch”