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Re: Vacuum lines and EGR
Hasan Ben Sobar #748666 May 21st 2019 12:19 am
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Originally Posted by Hasan Ben Sobar
Then pull the valve and install a block off plate. If the vehicle runs "different"-the valve is also bad but leaking externally.


I don’t think I have the resources available to do a complete emissions removal. Definitely don’t have the know how on this gasoline burning antique. I looked everywhere in town for a block off plate. No luck.

Re: Vacuum lines and EGR
84G20HiTop #748667 May 21st 2019 12:20 am
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Anyone know what this is that broke when I brushed up on it?

Attached Files 0698F805-4172-43FB-892C-A630C33E68F3.png
Re: Vacuum lines and EGR
Reed #748668 May 21st 2019 12:21 am
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Originally Posted by Reed
But air injection allows a cleaner burn of the exhaust in the catalytic converter and helps a converter survive longer behind a carb. Air injection helps prevent the overheating of the catalyst and the breakdown of the matrix which leads to clogged cats and exhausts.

EGR helps with controlling engine park knock and is a useful tuning tool.

No car uses air injection today.


Tucson-it's a dry heat...like an oven
Re: Vacuum lines and EGR
84G20HiTop #748671 May 21st 2019 1:24 am
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Maniac
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Thats right. They don't use EGR, either, because combustion chamber, timing control, fuel control, catalytic converter, and valve control technology has advanced so much since the 1980s. That doesn't mean the old engines and vans don't need an air pump.


Windows- they're what make a van worth owning!
Re: Vacuum lines and EGR
84G20HiTop #748675 May 21st 2019 9:59 am
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carpal tunnel
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carpal tunnel
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Remove the EGR completely and discard it. It was a stop-gap, half assed gesture by greedy car manufacturers to appease ignorant and confused law makers. The fact that it does very little to lower actual emissions compared to the damage it does to the engine is reason enough to chuck it. Net emissions actually increase over time from all the engines that are carboned up and running improperly with EGR.
No one ever, ever thought that recirculating burned exhaust gases back into the engine was a good idea. No Body! It simply reburned a portion of the gases on new engines, enough to say it lower emissions a faction to satisfy the inadequate standard of the day. It was a miserable failure in the long run.

Re: Vacuum lines and EGR
84G20HiTop #748708 May 21st 2019 7:19 pm
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Have cruise control?

Re: Vacuum lines and EGR
84G20HiTop #748709 May 21st 2019 7:22 pm
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Sorry 6 posts back up to pic.

Re: Vacuum lines and EGR
84G20HiTop #765687 September 20th 2020 8:11 am
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journeyman
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Thank you CatFish, you answered my question. Most of my emissions lines and such are plugged up or discarded when I bought my van. I saw the EGR and wondered what to do about it. Now I know.

I'll fabricate a block off plate and that'll be the end of that!

Last edited by Frosty; September 20th 2020 8:12 am.
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