nigep
L plate rider.
Posts: 12 
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Post by nigep on Jul 28, 2019 19:37:14 GMT 1
After 2+ slow years my N2 in a box project is nearing completion. Mission today was to fire it up for first time, just needed to fit zorsts and tubes to carbs, simples! Right zorst flange nice and tight but zorst still loose. Took it off again and noticed flange is warped. Any great ideas how to fix? I'm thinking stick it in a vice and attack with grinder, or cut thru pipe so it can be removed and worked on easier, but not sure my welding skills will repair pipe.  |
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Post by midlifecrisisrd on Jul 28, 2019 19:51:49 GMT 1
I reckon that if you stick one lobe in a vice you would be able to bend it back
Steve
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Post by russpuss on Jul 28, 2019 19:52:57 GMT 1
On topic, I’ve seen some wobbly flanges in my time!
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Post by headcoats on Jul 28, 2019 20:59:43 GMT 1
Quivering flange sounds even better !
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Post by shaunthe2nd on Jul 28, 2019 22:17:21 GMT 1
I had similar on my LC 350 and tried to straighten it without success so hope you do better than me.
If you don't you have 2 problems.
The first is sealing the exhaust. I did this with a decent new gasket, and even tried fitting 2, but one good one was better. This is the simple one.
The second takes a few miles and time to establish and longer to resolve.
This is that you will either get sheared exhausts studs, and/or studs getting ripped out the alloy barrel.
This is because the bent flange puts the stud in shear as opposed to tension, which is normal.
After a few expensive and difficult lessons, my solution was to use taper washers below the stud nut to square things up, such that when tightening you keep the stud in tension, not shear.
Cheap and simple but took me a long time to work it out. all good now.
Good luck with it. Shaun.
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Post by tacky1 on Jul 28, 2019 23:16:27 GMT 1
I dunno. I straightened one out in a vice. Open the vice wide enough so the exhaust will fit through. Put the flange on each of the jaws of the vice. Wide enough where the part with the bolt hole is on each jaw. I had my brother with me to hold the exhaust. I then had a 3 foot piece of heavy flat bar and put it on the edge of the flange edgeways. Then went ahead with a heavy hammer and banged at it on both sides till it was straight.
It didn’t take much to straighten it.
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Post by donkeychomp on Jul 28, 2019 23:41:45 GMT 1
Get a lot of heat on it then hammer the bugger flat.
Alex
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Post by Tobyjugs on Jul 29, 2019 1:19:52 GMT 1
Similar advice to Alex. Support the exhaust adequately in a good vice then heat the flanges up and using a large shifter/bacho place it on one side of the flange and adjust to thickness of the flange. You can now bend the flange back to straight in a very controlled manner.
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nigep
L plate rider.
Posts: 12
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Post by nigep on Jul 29, 2019 10:06:39 GMT 1
Had a quick trial fit this morning and concluded that it fits in the vice nicely with the edge of the lugs tucking in by the pipe therefore leaving enough space under the flange ears to attempt to force it down. Figured lots of heat and two hammers, but maybe the flat bar would be neater.
Tks guys
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nigep
L plate rider.
Posts: 12
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Post by nigep on Jul 29, 2019 10:07:19 GMT 1
Similar advice to Alex. Support the exhaust adequately in a good vice then heat the flanges up and using a large shifter/bacho place it on one side of the flange and adjust to thickness of the flange. You can now bend the flange back to straight in a very controlled manner. Toby, wtf is a shifter/bacho? |
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Post by oldbritguy on Jul 29, 2019 10:10:24 GMT 1
Adjustable shifting spanner, Bahco is a well known make
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Post by Tobyjugs on Jul 29, 2019 10:19:26 GMT 1
Yes an adjustable spanner.
In Belgium a lot of engineers call it an Englishman or English spanner
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Post by steven on Jul 29, 2019 11:32:32 GMT 1
Yes an adjustable spanner. In Belgium a lot of engineers call it an Englishman or English spanner ......I was working with some Germans who also call a "shifter" an Englishman, or "A Farmers tool."  Bacho is the preferred adjustable spanner for professionals, it says on Bahco shifters... MADE IN SWEDEN INVENTED BY BAHCO. (on the older ones anyway, not the new ones) Bahco tools = Quality items. Steven. |
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Deleted
Deleted Member
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Post by Deleted on Jul 29, 2019 14:14:15 GMT 1
We call it a Crescent here
And a lump hammer is called a Gympie
The one that through me many years ago was when working on a refinery designed by Americans and whose stores were also designed by Americans
I was told, by the senior engineer who was a Texan, to go get a Monkey Wrench, eventually found out he was talking about a set of Stilsons
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Post by 4l04ever on Jul 29, 2019 22:17:19 GMT 1
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Post by donkeychomp on Jul 29, 2019 23:10:53 GMT 1
That's a pipe wrench, Stilsons are different.
Alex
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Post by Tobyjugs on Jul 30, 2019 0:13:59 GMT 1
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Post by stusco on Jul 30, 2019 7:07:12 GMT 1
That's a pipe wrench, Stilsons are different. Alex They are stilsons mine say Stinson on them |
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Post by donkeychomp on Jul 30, 2019 11:37:44 GMT 1
Perhaps they are simply Stinsons then?  Alex |
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Post by pdxjim on Jul 31, 2019 6:40:33 GMT 1
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Post by stusco on Jul 31, 2019 15:20:23 GMT 1
Doesn’t look as good quality as Bacho shifter |
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Post by pdxjim on Jul 31, 2019 19:01:07 GMT 1
Doesn’t look as good quality as Bacho shifter LOL, no surprise there. As with most everything, tho, the older ones were much better. Pic was just to illustrate that in the states, this type of adjustable wrench is known as a "Crescent Wrench". no matter the maker. Much like these are known as "Channel Locks", even when made by Snap-On, Craftsman, etc.  Consider this thread successfully derailed! |
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Post by jon on Jul 31, 2019 19:47:41 GMT 1
How strange how we refer to the same thing differently?
I call the top picture an adjustable wrench, and the lower a pair of water pump pliers.
Slang term for stilsons a monkey wrench IMO.
Jon
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Post by pdxjim on Jul 31, 2019 20:23:48 GMT 1
How strange how we refer to the same thing differently? I call the top picture an adjustable wrench, and the lower a pair of water pump pliers. Slang term for stilsons a monkey wrench IMO. Jon Here, a Stillson (not a common term really) is the same as a pipe wrench. The upper jaw adjusts, and the lower jaw is fixed. The lower jaw is serrated and at a bit of an angle. Clearly designed to grip smooth round pipe. Very common plumbers tool, still very much in use. A monkey wrench, tho, the top jaw is fixed, and the bottom jaw adjusts. The jaws are smoothish and parallel. Designed for nuts and bolts, etc. Not very common anymore and you’d struggle to find one anywhere other than your Grand’s toolbox. |
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nigep
L plate rider.
Posts: 12
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Post by nigep on Aug 2, 2019 15:33:36 GMT 1
Well, whatever you want to call it, it worked a treat! No frenzy with bfg, just a big vice, bit of heat and a controlled tweak with the doodah.
Thanking you much kindly.
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