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04-30-14, 07:58 AM
#4
I think I had that happen on an old horizontal shaft roto-tiller once. Seems like the threads were so rusty that I had to pry the pieces out with an awl. I know you can use a hack saw to partially cut through the muffler, until you are down to the threads... then cave the twisted off pipe in on itself.
Probably no fun way to do it... just try not to screw the threads up too bad.
Probably no fun way to do it... just try not to screw the threads up too bad.
avid DIYer
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04-30-14, 12:33 PM
#6
Like Mark, I would start with PB Blaster or Break-Away, and would probably repeat as often as possible over a two day period before going any farther. Don't need a lot, just a "psht" each time, but it will take a while for it to migrate into the threads. And don't use WD-40 or anything like that, as it's a waste of time and money for something like this. Meanwhile, assuming it's the pipe thread type, there is a castle type lock nut that you can tap with a hammer and drift once in a while, until it is loose. I would also cut away any of the remaining muffler part, the tin shield, because it's not going to be of any benefit other than to give you a reason to grab a Band-Aid. Once the tin is out of the way, and the threads have soaked a bit, you may be able to back the pipe out with a pair of Channel-locks. If that doesn't work, you're probably looking at something like XSleeper suggested.
It'll probably crumble up a bit but I think you'll have more to grab onto.
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05-01-14, 11:21 AM
#12
I was imagining a muffler that had already shredded itself leaving only shards of the old pipe sticking out of the hole. By all means hit it with some PB... and before you put a pipe wrench on it, I'd cut yourself a tight fitting circle of wood to insert into the remaining part of the muffler. That way when you put the pipe wrench on it, the part of the muffler that's left won't crush as you try and turn it. If you're lucky it will break loose.
Then IF and when the neck twists off (which is where I was imagining you were at with this) then use the hacksaw blade to cut directly into the hole and cut most of the way through the length of the male portion of the threads... that way you will be able to cave the pipe in on itself.
Then IF and when the neck twists off (which is where I was imagining you were at with this) then use the hacksaw blade to cut directly into the hole and cut most of the way through the length of the male portion of the threads... that way you will be able to cave the pipe in on itself.
