Pollution Control Devices
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- เผยแพร่เมื่อ 15 ต.ค. 2024
- Courtney Hines talks through pollution control devices for Cadillacs and other vehicles. He explains how they works and the pros and cons of these devices.
Please visit cad500parts.com/ if you have any questions.
Thanks for the info
Thank you for **all** of your videos, they're an absolute godsend. Can't wait to start tuning the 500 in my 1976 Fleetwood; the goal is to have a happy, healthy, torque-y daily driver. Will be talking with you soon to order Cam and Valvetrain.
Back in the day we brought over the garbage can and placed all the emission controls in said can. Went to the parts bin and installed pipe plugs where the thermal vacuum switches were and air tubes used to be. Dropped down the exhaust pipes and torched open the heat risers. Reset the timing and carburetor, and really got our rides running good. Those were the days. )
My two 68. Caddys the 69 and 74 cads all have the original air pumps still intact and working.Those engines were some of the first zero emission engines.I would set them up for emissio testing and they always passed with all the equipment hooked to it.and yes the egr valve operation allows the engine combustion Temps to run cooler deleting detonation and pinging.
🥝✔️Richard Holdener and JA Cook from FEP brought me Here. Love your stuff, Courtney. Proper info rather than a One Flew over the Cookoo Nest Frontal Labotomy. Ford copied that joined system for its Thermactor in 1978 to 1995.
Yes. The AIR pump is meant to be used in a very particular way. Its purpose is to reduce NOx in an indirect way. To set it up properly, the engine should be tuned rich, which minimizes NOx owing to lower combustion temperatures but produces excess HC and CO in the exhaust from unburned or partially burned fuel. The unburned fuel is then burned in the exhaust manifolds once the AIR is introduced. It does work really well. My 74 Eldorado always passed its smog checks with flying colors, it would just about hit the '97 smog requirements. (I think that was the last year smog checks were required for 74s in so cal.)
The explanation in the video for what the air hose going to the middle of certain cats does is not quite right. This is a more modern system with a two stage cat. The first stage is the reducing stage, which cleans NOx back to nitrogen gas. The second stage then oxidizes the HC and CO to get rid of those. Since the first stage needs to be oxygen poor and the second needs to be oxygen rich, oxygen has to be added in between. Cutting off the flow of air to the cat ought not generate NOx, but it would lead to extra HC or maybe trace hydrogen sulfide?
What about later 70’s “smog-eta” engines? Can you make that stuff make power or is it better off without?
As young teens we use to cut the air lines and stuff the lines in the air cleaner we would say it was a poor man's supercharger
They don't answer there phone lately at cad company
I called twice
I just discovered that Courtney Hines passed away in August of this year. RIP Mr. Hines.
Won't a.i.r. then mess with o2 readings on an air/fuel gage?
I deleted mine for less extra stuff under the hood