Category: Exhaust

Repairing Exhaust Leak on my 300zx

As I talked about earlier, I replaced the catalytic converter. What I had hoped would be an easy install turned out to be a royal pain. I went with a OEM style 300zx catalytic converter which should have been a bolt on job. But since the bolts connecting the cats to the exhaust manifold were so rusty, I ended up having to break the nuts and drill out the manifold. Read more »

Installing the New Catalytic Converters in my 300zx part 3

I finally got the new catalytic converters into my 300zx the Wasp.  Wow.. what a pain.  What I thought would likely be an easy install turned into a 3 week process (lots of that time was spent letting Pb Blaster soak in so don’t feel too bad for me. 🙂

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Installing the Catalytic Converters Part 2

So the parts came in.  They look pretty good, but the weld where the EGR attaches isn’t very good looking, but they do look like they won’t leak.

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Replacing the Catalytic Converters on my Z32/300zx

My 300zx has had a bad exhaust smell since I bought her.  I can’t believe I didn’t notice when I bought her.  I have the Z running pretty good (not rich/not lean), and have replaced the O2 sensors.  So pretty much the last possibility is that the 23+ year old catalysts have gone bad.  Since I bought this car from a younger kid who had put on a cat-back exhaust, I wouldn’t be surprised if the cats haven’t been gutted.

Restoring my Z32/300zx… steps so far!

So, I’ve had my Z32 for about 4 months now.  She has been a royal PAIN IN THE A$$… but I love her.  I think she is “the One!”

When I started this blog, I thought I’d share my experiences, but so far I haven’t gotten the habit of blogging.  I will try to do better, but for now here is a quick run down of the fixes I’ve made so far.

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