LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

EGR question

Old Jun 13, 2004 | 05:25 PM
  #1  
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From: FARGO!!!
EGR question

I am almost done installing my non-emission headers on my TA. I don't want to spend $30 on block off plates. Is there anything I can do to not spend it? Could I just crimp/seal the tube off at the bottom?
Old Jun 13, 2004 | 05:51 PM
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the lt4 blockoff plate is like 8 bucks and then all you really need is a couple rubber vacuum caps.
Old Jun 13, 2004 | 06:38 PM
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Cut a diamond shaped plate (you can cut it from a soda can) to match the flange on the corrugated tube, drill two holes in it so it will slip over the studs on the back of the manifold, then bolt the corrugated tube flange back on to sandwich the metal plate to the intake. A small amount of RTV on the manifold side will ensure a good seal. Cost.... "0".
Old Jun 14, 2004 | 06:21 AM
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From: FARGO!!!
Thank you.
Old Jun 14, 2004 | 07:12 AM
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Anyone have any pics of that kind of setup?
Old Jun 14, 2004 | 08:08 AM
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It's pretty intutitive. The aluminum can is just to seal it. You still need to keep the old piece to bolt on the back of it.
Old Jun 14, 2004 | 09:03 AM
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Originally posted by Red96Lt1
It's pretty intutitive. The aluminum can is just to seal it. You still need to keep the old piece to bolt on the back of it.
I bought the EGR block off plate from GMPartsDirect, but that only blocks off the EGR valve. I need to block off the EGR pipe that comes from the pass. side manifold. So all I would do would be to take off that plate...disconnect the pipe from the plate, then get the coke can, can put it behind the plate and place it back on the intake manifold?
Old Jun 14, 2004 | 11:24 AM
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I bought these http://cgi.ebay.com/ebaymotors/ws/eB...category=33607

They were perfect, fast shipping, nice guy. I will spend the extra money to not rig my cars with things like beer cans
Old Jun 14, 2004 | 11:25 AM
  #9  
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Originally posted by The Cartel
I bought these http://cgi.ebay.com/ebaymotors/ws/eB...category=33607

They were perfect, fast shipping, nice guy. I will spend the extra money to not rig my cars with things like beer cans
I think I"m goign to go with that...what about gaskets?

Last edited by a mean 94z; Jun 14, 2004 at 11:30 AM.
Old Jun 14, 2004 | 11:31 AM
  #10  
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You won't be disappointted What's 34.00.... F...it
Old Jun 14, 2004 | 12:29 PM
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Can you delete the EGR function via PCM reprogramming, without having to physically block it off?
Old Jun 14, 2004 | 12:45 PM
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I'm the guy selling the paltes form the Ebay link above. Thanks for the compliments I don't sell anything that I wouldn't be proud to put on my own car.

If you want them alittle cheaper email me and we can cut Ebay out and I can knock off $2 if you want. And about the gaskets, I don't think they are nessessary. When I installed mine over 2 years ago I used some RTV to make a small bead, let it set for about 10 minutes to stiffin alittle and install. I have had no problems at all. With the heat now taken off the back of the intake manifold you don't have to worry about the RTV getting cooked. I thought about making gaskets like some of the other guys are that are selling them, bet felt they wern't needed. I use .250 tool plate 6061-T6 aluminum and is very flat. So if you clean off the mating surface well, and use alittle RTV, there shouldn't be any problems.
Old Jun 19, 2004 | 05:47 PM
  #13  
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From: FARGO!!!
Originally posted by Injuneer
Cut a diamond shaped plate (you can cut it from a soda can) to match the flange on the corrugated tube, drill two holes in it so it will slip over the studs on the back of the manifold, then bolt the corrugated tube flange back on to sandwich the metal plate to the intake. A small amount of RTV on the manifold side will ensure a good seal. Cost.... "0".
Thats it? do I need to block anything else off?
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