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Stuck Fork Tube Plug

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craig60pan
Posts: 181
Joined: Fri Dec 31, 2004 2:37 pm
Bikes: 1960 FL
1951 FL
Location: Atlanta

Stuck Fork Tube Plug

#1

Post by craig60pan » Mon Jul 13, 2009 12:07 am

Decided to open up the forks on a bike that had not seen any us in the last 30 years.
The fork caps came off fine but one of the fork tube plugs is stuck, big time. Tried dosing it with PB blaster for the better part of an afternoon but no go.
The good thing is that when I pulled the drain plugs there was still about 3 oz of fluid in them and no leaks at the drain plugs.
The springs seem fine but someday I will need to get that plug out. I thought about filling a cup with PB Blaster and inverting the fork into it up to where the threads would end and leaving it for a day or two but hoping for a better solution. Any ideas would be welcomed.
CJ



steve_wood
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Location: Belleville, Ontario, Canada

Re: Stuck Fork Tube Plug

#2

Post by steve_wood » Mon Jul 13, 2009 11:16 am

Maybe some heat from a propane torch? Might make a lot of smoke though....

craig60pan
Posts: 181
Joined: Fri Dec 31, 2004 2:37 pm
Bikes: 1960 FL
1951 FL
Location: Atlanta

Re: Stuck Fork Tube Plug

#3

Post by craig60pan » Mon Jul 13, 2009 12:46 pm

Steve
That is on my list of "if nothing else works"
Thanks
CJ

FlatHeadSix
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Re: Stuck Fork Tube Plug

#4

Post by FlatHeadSix » Mon Jul 13, 2009 5:17 pm

CJ
PB Blaster is absolutely the best thing commonly available at the local AutoZone or WalMart but there is another product that will loosen up stuff that PB won't touch: KROIL

Kroil is a little pricey but it works where nothing else will, Google it and shop around a little for the best price. It is available in spout cans or aerosol, I think the straight liquid in the spout cans is a better value.

mike

panz4ever
Posts: 521
Joined: Fri Aug 12, 2005 5:45 pm

Re: Stuck Fork Tube Plug

#5

Post by panz4ever » Mon Jul 13, 2009 5:47 pm

Had the same problem with mine. Same length of time sitting...30+. PB Blaster did not work. Didn't try Kroil. Found success using propane torch. Took about 2-3 minutes of heat and finally loosened right up

craig60pan
Posts: 181
Joined: Fri Dec 31, 2004 2:37 pm
Bikes: 1960 FL
1951 FL
Location: Atlanta

Re: Stuck Fork Tube Plug

#6

Post by craig60pan » Mon Jul 13, 2009 8:27 pm

Mike,
I have heard of KROIL but never used it, now may be the time.
The torch may be the best answer
CJ

62pan
Posts: 31
Joined: Sat Jul 26, 2008 9:39 pm

Re: Stuck Fork Tube Plug

#7

Post by 62pan » Tue Jul 14, 2009 1:04 pm

As long as you don't go crazy with the torch it won't hurt anything. The heat will help to break loose the rust and crud. On really stubborn threads you may have to heat/cool/heat it a couple of times to get it to release.

59FL
Posts: 19
Joined: Wed Jul 08, 2009 2:56 pm
Bikes: 1959 FL

Re: Stuck Fork Tube Plug

#8

Post by 59FL » Tue Jul 14, 2009 4:36 pm

If your talking about the socket head pipe plugs for draining the fluid, it's not un-common to have to drill them out. A new pair typically comes with a rebuild kit.

It's easier with the lower removed.

NightShift
Posts: 532
Joined: Tue Apr 21, 2009 4:20 pm
Bikes: Two Schwinns, a Hercules, and a Hiawatha
Location: Underground in Illinois

Re: Stuck Fork Tube Plug

#9

Post by NightShift » Tue Jul 14, 2009 11:19 pm

A good welder can tack a bolt on it to turn it back out.

Honest.
and 'Spectful.

craig60pan
Posts: 181
Joined: Fri Dec 31, 2004 2:37 pm
Bikes: 1960 FL
1951 FL
Location: Atlanta

Re: Stuck Fork Tube Plug

#10

Post by craig60pan » Thu Jul 16, 2009 1:18 am

Haven't had time to fool with it but will try KROIL and then the torch.
I am talking about the Fork Tube Plug (45776-49)
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