[Munchen]

Informational

Pulled front exhaust because of clogged CAT. Check out the CAT...
Nothing like a burnt O2 sensor?

 

[Tifosi]

If you don't have to pass any kind of sniffer test, now would be the time to knock the guts out of that cat, replace the 02 sensor, and carry on your merry way........

I posted the other day about a replacement sensor I found that's Bosch, relatively inexpensive and definitely compatible.

 

[john.harrill]

Pardon the spelling....

How do you "eviserate" a cat convertor?

 

[Tifosi]

Usually a hammer and prybar, long screwdriver, or pretty much anything that'll reach through the length of the cat chamber.

Bust the monolyth up into hunks and dump it out through the pipe and you get an (almost) instant expansion chamber.

 

[Elio Comello]

Bosch Premium "universal" 3 wire #15735 was my substitute. Got it from The Parts Bin. Bin doing fine on my 87 Quad for 3 years.
Other posts on the BB indicate Bosch #13953 is also good.

TTFN Elio

 

[john.harrill]

Usually a hammer and prybar, long screwdriver, or pretty much anything that'll reach through the length of the cat chamber.

Bust the monolyth up into hunks and dump it out through the pipe and you get an (almost) instant expansion chamber.

I'll use the BFH.

 

[Slash]

I'll use the BFH.

Don't forget the LAS.

 

[Elio Comello]

Explain please (give clue at least)

Elio

 

[Slash]

BFH = Big Fg Hammer

LAS = Long A** Screwdriver

 

[Munchen]

BFH = Big Fg Hammer

LAS = Long A** Screwdriver

Yea, I used a BFH and a LAS to knock all that CAT junk out. Now I just need a replacement O2 sensor and should be good to go. Or at least good to go until I have to go through emissions in '09

 

[Tifosi]

But it'll be 20 then and that might be all the difference you need, mabe....

 

[frieddoh]

When the honeycomb on my cat went sideways and suddenly I couldn't go over 50, a certain unnamed third party cut the cat open and removed offending innards and sealed it back up with nice weld.

Downside to this is that occasional foul odor wafts to my ever so-sensitive nostrils

 

[Tifosi]

If it's a rotten egg smell, it ain't you (well, if you didn't have pickled hardboiled eggs and genesee beer at the bar anyway) it's someone in front of you with a functional cat.

 

[frieddoh]

Geneseeing is believing! Not rotten eggs, somewhat different than that. Pretty sure the spider is to blame. More along the gaseous noxious fume line.. but only at brief intervals (coming to a stop at a light after some spirited driving).

 

[Tifosi]

Kinda 'oily' or 'gassy'? (noxious is so vague )

There's numerous threads on dealing with gas smell, but oil could be quite a few things from leaks spraying the exhaust to a mis-connected or gumed up oil vapor seperator, or even the diff or trans spritzing a little bit of hot gear oil here and there. (cooked/cooking gear oil is pretty rank compared to motor oil BTW)

 

[frieddoh]

ok, cork sniffing complete... After much deliberations with myself I'd say we are on the gassy fuel-smell with a whiff of super-heated catalyst gasses. Essentially when I come to a stop the cloud "catches-up" with me and then dissipates. Also despite having the head rebuilt earlier this spring, I get a small bit of blackish-grey smoke if I really stomp on it from a dead stop as run through 1st and 2nd, and is no longer apparent in 3rd.