• 2 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     WR = 2st Enduro & CR = 2st Cross

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

All 2st Rebuild a pancake pipe?

jaxsplatt

jaxsplatt

Husqvarna
AA Class
so with my budget blown out with kids bikes and mine needing numerous replacements my bent and totally abused expansion chamber on the 3 hung needs to be caressed back to shape.
I'm thinking of the air and heat method ... I'm an expert now as I've watched 3 YouTube vids so apprenticeship done online!
Any one tried it and has tips. Between 30-60psi of air then heat with blow torch and hope it pops..
Most of the pipes on u tube were nickel and not steel so is there a difference in heating with the torch?
I don't wanna blow a hole in it but I think it's worth a try.
 
Blank off inflate to 40-50 psi and use oxysettaline blow torch you will be there forever, if no access to oxy use mapp and work in a circular motion start two inches out and keep heating untill it glows red it will start to come then move in, depending on damage you may have splits or pin holes weld them before you start without pressure in.
Its satisfying when done right.
 
Yeah it'll be a map torch as no access to oxy/ accet.. Also seen peeps using water in the dented area only and freezing with good results until they go a bit far and split it at the seams.
Thinking I might find a smaller dent and try it...
Helmet and goggles ya reaction.. Cricky I might chuck on my NATO webbing and bullet proof vest!!
 
Using an inert gas like nitrogen is a great idea. Burning out the inside of the pipe to remove all left over fuel and spooge is also a great idea. I had a pipe spontaneously ignite once. It basically went off like a small bomb, blew the one end cap right off the pipe before we even knew what happened. Thank goodness we were being careful to avoid being inline with the ends of the pipe while we heated it up and added compressed air when it blew.

The explosion did remove all the dents in the pipe really quickly, so it wasn't all bad.
 
woodsrider said:
Using an inert gas like nitrogen is a great idea. Burning out the inside of the pipe to remove all left over fuel and spooge is also a great idea. I had a pipe spontaneously ignite once. It basically went off like a small bomb, blew the one end cap right off the pipe before we even knew what happened. Thank goodness we were being careful to avoid being inline with the ends of the pipe while we heated it up and added compressed air when it blew.

The explosion did remove all the dents in the pipe really quickly, so it wasn't all bad.
Click to expand...


hahahahaha, glad you were safe
 
Good advice guys!
It takes a long time to get the heat in with mapp, nitrogen may work what are its expansion properties under heat like?
Air expands more when its hot so the pressure is higher in the pipe probably not by much but it should help a little.
 
geez jax this is starting to sound pretty full on! film it just in case & you might make it into zoos gruesome photo section;)
 
We used the oxy acetelyne torch to burn out the left overs in the pipe from then on. Seemed to work pretty good.
 
Yeah there's a good vid on YouTube where the bung blows off and there's a fire right next to the oxy/accet hoses, gets full on. My oldest lad and I burnt out the carbon when I removed it on Sunday.
Spray a bit of wd40 down the header then ignite as you are spraying flame thrower style and get it burning then gently use air compressor to blow until it gets the carbon glowing then wide open on the air and she looks and sounds like a pulse jet! The kids love it!!
I gotta mate involved as he has pressure bungs and an oxy welder. His wife's an accident and emergency nurse so I'll get her to video. All happening on the weekend.
Never posted a vid... How's it done?
 
haha...you guys are as red neck down there as we are ;) although around here probably just use gasoline :rolleyes:
What are the famous, last words of a red neck?
"watch this!" :eek:
Anyway, the only way I know to post a vid is to upload to a host like Youtube, then paste the link into a post here.

:cheers:
 
As stated above, be careful as my friend has does this heat-up method and the plugs can fly out the pipe at high speed ...

There is also a method adding water inside the pipe and freezing it over night ...

--

NC, I just read out here it's ... "Hold my beer ... Watch this"
 
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