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post #41 of 51 (permalink) Old 09-03-2018, 03:42 AM
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Originally Posted by zzleapy View Post
So I warm up the Cats before driving it.

I noticed that my oil was a bit low, I checked my PCV. It moves up and down freely, does that mean it's functioning correctly?
Never, ever idle your engine, especially on a cold start.

You can check your PCV by opening the oil filler cap while the engine is running. Do you feel suction? Try putting a plastic bag over the filler neck. No suction = faulty PCV valve
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post #42 of 51 (permalink) Old 09-12-2018, 01:10 PM
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Originally Posted by Get Inline View Post
Never, ever idle your engine, especially on a cold start.
...

You must mean when breaking in new catalytic converters, because I cannot believe you are suggesting that engines should only be revved when cold starting generally.


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post #43 of 51 (permalink) Old 09-12-2018, 01:23 PM
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Originally Posted by DrFeelGood View Post
You must mean when breaking in new catalytic converters, because I cannot believe you are suggesting that engines should only be revved when cold starting generally.
what on earth are you talking about? That's not what I meant at all. You want to limit idling as much as possible and just drive the car normally when cold, keeping RPM's below 3000 until the oil comes up to temp.
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post #44 of 51 (permalink) Old 09-19-2018, 05:58 PM Thread Starter
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So I was able to take out all the ceramic particles in front pre-cat (front) and reinstalled it. But the noise was horrible and seems to run sluggishly. Guess, this weekend going to reinstall the new ones back on. Now just trying to figure out what additive I can add to the oil to prevent burning. Any suggestions?
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post #45 of 51 (permalink) Old 12-19-2018, 10:00 PM
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Originally Posted by zzleapy View Post
So I was able to take out all the ceramic particles in front pre-cat (front) and reinstalled it. But the noise was horrible and seems to run sluggishly. Guess, this weekend going to reinstall the new ones back on. Now just trying to figure out what additive I can add to the oil to prevent burning. Any suggestions?

It depends on what/how you are burning.
If you are talking about oil, sometimes moving to a heavier weight can do the trick. If you run a standard 5w-20 then moving to a 5w-30 high mileage may help. This change really worked for a car that had worn valve guids. If you have worn piston rings then a copper "filling" product may help. When one of my Toyotas started to mis-fire because of low compression in a cylinder I used a product by Restore Engine Restorer and Lubricant.
It stopped the mis-fire and allowed me to pass inspection. The car ran that way for another 6 years until I sold it with full disclosure.


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post #46 of 51 (permalink) Old 12-19-2018, 10:02 PM
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Another successful full catalyst replacement done by @blackerphotos . well done. In one day no less and that included dealing with fully welded fasteners.
@bluedevil6 I am moving comment to this thread so we don't totally derail @waughoo and his brilliant DIY.
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post #47 of 51 (permalink) Old 12-19-2018, 10:04 PM
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Originally Posted by DrFeelGood View Post
Another successful full catalyst replacement done by @blackerphotos . well done. In one day no less and that included dealing with fully welded fasteners.
@bluedevil6 I am moving comment to this thread so we don't totally derail @waughoo and his brilliant DIY.


Probably a good idea lol


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post #48 of 51 (permalink) Old 12-19-2018, 10:36 PM
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Originally Posted by DrFeelGood View Post
Another successful full catalyst replacement done by @blackerphotos . well done. In one day no less and that included dealing with fully welded fasteners.
And TWO broken studs - one in each manifold - and an EGR bung that wasn't welded on exactly square so getting the tube back in and bolted down took close to an hour of...persuading.

All told it took me about 9 1/2 hours start to finish, and I guarantee I'm going to feel it tomorrow!

Next up, probably over the holidays if it doesn't get stupid cold; installing my Eibach lowering springs.


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post #49 of 51 (permalink) Old 12-19-2018, 10:54 PM
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That probably would have taken me twice as long lol congrats on a job well done @blackerphotos


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post #50 of 51 (permalink) Old 12-20-2018, 12:25 AM
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That probably would have taken me twice as long lol congrats on a job well done @blackerphotos
After a false start a couple of weekends ago, I was hell bent on getting it done in one go.


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