Pierce cushion fork repair


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ratfink1962

Finally riding a big boys bike
Oct 11, 2010
141
69
haysville, ks
#1
I have a broken Pierce cushion fork I will be repairing sometime in the near future.

I have a couple of ideas on how to fix it, but was wondering if anyone here has made the same repair, and what the outcome was?

My fork is broken where the aft most (long) leaf meets the crown, essentially it broke off flush. I read elsewhere that the fork legs are made from spring steel and I believe was brazed into the crown.

Idea #1
Cut off 1" from the original break, then weld on (tig) a new longer section which would slip into the slot milled into the crown, then braze it like it was from the factory. My fears with this method would be changing the temper of the spring steel when welding the extension on. I would also build a jig to hold things in the proper place before welding and brazing it back together.

Idea #2
Figure out which steel to use (1050-1060?) And forge a whole new leg... which would require it to be tempered. Then install it in the fork crown same as above. My fear of using this method is getting the dimensions exact, and getting the proper temper... plus it really wouldn't be original to the bike.

Thoughts? Suggestions? Let's hear it.

20190216_141311.jpg
 
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redline1968

Riding a '38 Autocycle Deluxe
Oct 16, 2008
4,921
3,458
Seattle, United States
#2
Yikes!! OH...WOW...To me... it looks like a total replacement....who ever did the orig repair most likely used a torch and destroyed the temper...if I had it I’d throw it away..or dream for a new fork or use it as a display....lol... ok ...seriously option( 3 ) is to do a whole new fork. Do the “forged in fire thing.” you might lose the spring steel temper with heat of a torch on a repair... who’s to say the other side hasn’t be compromised with the old repair...it’s possible you repair and the other side breaks..too risky
 
Likes: hoofhearted

locomotion

Cruisin' on my Bluebird
Jan 15, 2011
2,496
1,466
PQ
#3
I would start by sand-blasting the whole fork to see what you are really working with.
Looks like a mess in the picture.
I use aluminium oxide in my cabinet. Safer/more gentle on the steel.
Then clear it until you are ready for the next step to prevent rusting.
Then post some pictures of what you have.

Hard to say what really is going on there!

I would most likely only repair the fork by welding it/brazing it and leaving it as a display piece ..... I would not ride a bike with this fork on!!!
 

ratfink1962

Finally riding a big boys bike
Oct 11, 2010
141
69
haysville, ks
#4
The old repair was a piece of sheetmetal wrapped around the fork legs and soldered... not hot enough to mess with the temper.

Option 3 is not an option to me at all.
This fork (and bike) will be repaired and ridden... wont be a daily rider, but it will be ridden on occasion. I have no doubt it can be repaired, and be just as good as the original. I also blacksmith as a hobby.

But yes... it is a mess, I will clean it up and see just what Ive got going on... I dont think its as bad as everyone thinks.

Was wondering if anyone here has attempted the same repair? If not... I guess Ill document it, then you can send me your broken Pierce forks! :)
 

ratfink1962

Finally riding a big boys bike
Oct 11, 2010
141
69
haysville, ks
#10
If you black smith then option 3 is viable..why the question then?
I can re-create the fork legs, but no way would I attempt to re-make a new crown with steer tube... thats beyond my abilities to just create that part from scratch. Besides... Its kinda the same thing as repairing what I already have if I just replace the one broke leg.

I can fabricate just about anything... but If I get stuck, I have a buddy that is a nationally recognized master fabricator that builds some amazing stuff.
 

ratfink1962

Finally riding a big boys bike
Oct 11, 2010
141
69
haysville, ks
#13
I'll have to try and dig up some pics, I'm not very good at organizing and storing photos, I know I have taken pics of various projects over the years... but finding them is another story.

Here is a few I found on my phone, outdoor fireplace project, porch rebuild at my sons house, and a blacksmithing project.

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willswares1220

I live for the CABE
Dec 18, 2011
1,847
611
Port Washington, WI
#14
You could check on The Wheelmen Forum and also on their facebook. There's many skilled craftsmen in that club that have either restored or repaired early stuff.
 
Last edited:
Likes: ratfink1962

ratfink1962

Finally riding a big boys bike
Oct 11, 2010
141
69
haysville, ks
#18
Your only seeing part of the patio... 1400 SF total, this spring I will be finishing the firepit area, plus the outdoor grilling area which wont be fancy... just my grill and smoker and I'll be building a rolling island work space. Then comes the landscaping... 3 years start to finish working on it when I have time.
 
Likes: locomotion

ratfink1962

Finally riding a big boys bike
Oct 11, 2010
141
69
haysville, ks
#19
Btw.. the fireplace wasnt too hard to build, I got my plans from www.backyardflare.com they have many styles of outdoor fireplaces that can be owner built, plans are only $40 and I think right now they are running a half price sale on several designs.
I think I only have $1200-1500 in it total. Which is very affordable if you can handle cinder blocks.
 
Likes: locomotion

locomotion

Cruisin' on my Bluebird
Jan 15, 2011
2,496
1,466
PQ
#20
Btw.. the fireplace wasnt too hard to build, I got my plans from www.backyardflare.com they have many styles of outdoor fireplaces that can be owner built, plans are only $40 and I think right now they are running a half price sale on several designs.
I think I only have $1200-1500 in it total. Which is very affordable if you can handle cinder blocks.
Feel like taking a trip to Canada this summer ;)
 
Likes: ratfink1962

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