Removing the Catalytic Converter
#17
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IMO replacement is the simple answer - but I am a cheap a$$ and would try to save them ---
so here's the secret:
the rust jams inthe space between the nut and the screw causing it to jam. More force only means more jamming of runst into the space. Workit back and forth and each time you run them in clean the threads of the screw with peratrating oil (or other) and worth them in and out, in and out...dont let ANY heat build up in the parts. if you can feel heat in the num, the internal section is smokin hot and WILL cause the rust particles to weld themselves to the parts and seize.
I did mine on the 996 and didnt loose any nuts/bolts, but it was a PITA... again its simple to replace, but wasting time and oil was my approach
so here's the secret:
the rust jams inthe space between the nut and the screw causing it to jam. More force only means more jamming of runst into the space. Workit back and forth and each time you run them in clean the threads of the screw with peratrating oil (or other) and worth them in and out, in and out...dont let ANY heat build up in the parts. if you can feel heat in the num, the internal section is smokin hot and WILL cause the rust particles to weld themselves to the parts and seize.
I did mine on the 996 and didnt loose any nuts/bolts, but it was a PITA... again its simple to replace, but wasting time and oil was my approach
#20
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Don't want you to think I cheap and was trying to save the bolts, I was not. I already had the replacements ready but I don't have a torch to cut them off.
Thus the mashed knuckles and gashed hand.
Thanks for the info. I am going with the spade connector tomorrow when I work again.
Rob 1980 911 SC
Thus the mashed knuckles and gashed hand.
Thanks for the info. I am going with the spade connector tomorrow when I work again.
Rob 1980 911 SC
#22
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Okay the Cat is installed along with a new Oxygen sensor. I used a spake connector because the place where the sensor connects was broken.
Installed my shifter bushings and went for a drive.
With the new cat and sensor it is running a little rich right now.
After I got it warmed up it was running really good (bit rich).
Went for a drive up the canyon and it really felt good. Get it adjusted monday.
Installed my shifter bushings and went for a drive.
With the new cat and sensor it is running a little rich right now.
After I got it warmed up it was running really good (bit rich).
Went for a drive up the canyon and it really felt good. Get it adjusted monday.
#23
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Rob
There is another thread running right now and I have a question . Ask whayt your tech does with the O2 sensor on your SC when he is doing your CO check. BTW what was your indication it was running rich ?
There is another thread running right now and I have a question . Ask whayt your tech does with the O2 sensor on your SC when he is doing your CO check. BTW what was your indication it was running rich ?
#24
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Iceman,
When I first started up I could smell something, I thought it was running rich but I guess it could have been the new CAT. After a 45 min spirited drive it seemed to be feeling better but I could still smell it a bit.
I am not a mechanic. I do what I can but leave the technical stuff to my mechanics. I have a guy down the street from my office that runs a shop. Not Porsche specific but he has owned a few and seems to do pretty good. There is a good shop in town also that I use.
Rob
1980 911 SC
When I first started up I could smell something, I thought it was running rich but I guess it could have been the new CAT. After a 45 min spirited drive it seemed to be feeling better but I could still smell it a bit.
I am not a mechanic. I do what I can but leave the technical stuff to my mechanics. I have a guy down the street from my office that runs a shop. Not Porsche specific but he has owned a few and seems to do pretty good. There is a good shop in town also that I use.
Rob
1980 911 SC
#25
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With my new CAT and O2 sensor installed, I went today to get my Safety and Emissions test. Last year I failed the emissions and registered my car in another county where I rent a condo. Kept car there most of winter.
Anyway I passed the emissions test with flying colors. So I guess it is true that the CATs go bad afterwhile.
I am legal and ready to go.
Anyway I passed the emissions test with flying colors. So I guess it is true that the CATs go bad afterwhile.
I am legal and ready to go.
#26
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RS:
Are old cats worth anything? I always thought they had rare elements in there, albeit in small amounts. I wonder if you could turn that thing into some $$? In Denver people steal them from your car so they must be worth something.
Tom
Are old cats worth anything? I always thought they had rare elements in there, albeit in small amounts. I wonder if you could turn that thing into some $$? In Denver people steal them from your car so they must be worth something.
Tom