silencers trying to seperate silencer from header

dvd

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Jul 12, 2018
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not having any luck seperating silencer from header.trying to replace exhaust rose.silencer seems to be "glued" on to the header.tried wd 40,heat on silencer flare and flat out banging with a rubber mallet.no love.any ideas?thanks all
 

baz

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Throw the wd40 in the bin and get some penetrating fluid
In the UK we have plusgas not sure what you have bin the states
Wd40 is a water dispersment
 
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WD-40 isn't really a good penetrating fluid. Try Kroil or PB blaster or make your own with a 50/50 mix of acetone and that leftover brake fluid that's been sitting in an unsealed can for the past couple of years.

You didn't say how much heat. If it's really rusted together, you might need more than just a propane torch.
 

lazyeye6

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Dose with Kroil several times for a couple of days. Then add heat. Then use twisting/shouting
motion. Then big hammer. Might be easier to remove header and muffler as one piece to work
on.
 
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Old fashion off road diesel will penetrate in a pinch, or any of the other proven products. I used diesel when the sea water would get to my tools & then wipe them. It also left a light oily layer slowing further rust. I'm sometimes just cheap like that.
 

dvd

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Jul 12, 2018
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just an update,took headers and mufflers off in one piece.stood em up muffler down and soaked the connections with kroil for 3 days.then propane heat and a lot of twisting and shouting and success.thanks guys.
 

baz

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A thin smear of never seize on reassemble helps future removal.
That's good advice
You don't really want the join too tight anyway, there's a fair bit of movement when the exhaust heats up
 
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