1985 RX-7 Rusted on Cat
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Mid-Life Crisis
Joined: Apr 2008
Posts: 18
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From: New Hampshire
1985 RX-7 Rusted on Cat
I am in the process of replacing for the first time my cat. I have an 85 GSL. I have gotten the bolts and or nuts off today, but the flanges are rusted - welded together. Any tips or tricks for removal? The pipe to the muffler and to the pre-cat are good and I have a bolt on replacement cat to install. Thanks in advance.
Joined: Feb 2001
Posts: 29,798
Likes: 128
From: London, Ontario, Canada
Lots of penetrating oil (PB Blaster) and a big hammer.
Heating the flanges to red hot will also help.
But if the flanges are this bad, don't count on the new part sealing up when you install it.
Heating the flanges to red hot will also help.
But if the flanges are this bad, don't count on the new part sealing up when you install it.
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dludden
1st Generation Specific (1979-1985)
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Aug 26, 2015 11:25 AM
