1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Help with rats nets

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Old Mar 19, 2006 | 02:47 PM
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Help with rats nets

Ok I have taken everything off goten everything pluged that i could find.

"There are two of these odd valves with metal hoses that run under your car. The skinny guy goes to the pre-cat, and the fat one goes to the main cat. Both need to be capped, and you can take our patented cut fold and crimp method. If you fold it - you will likely need to fold it twice to prevent leaks. Alternately, you could weld it shut or if you are lucky enough to be able to remove the bolts and simply disconnect it, you can even make blocking plates with the leftover aluminum. As you can tell by our chosen method - we wouldn’t bet on it."

I couldnt find these^^


Also I have no A/C compress so I didnt hook up the hoses to that. I just pluged the #1 outlets from the left. Should I leave that pluged or should I run a hose from there and "T" it so it goes every else in the pic but the A/C noid?

Last question....I made a block plate for the (forgot tech word) pice you take off the intake, but it didnt fit....so i just hook the pice back up and blocked the 2 holes. Is this ok to do or should i try and make another plate?

Im ideling at 2,000 now and it wont go down. I checked all the hoses/plugs and i sprayed carb cleaner to see if it would jump anywhere but i got nothing.
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Old Mar 19, 2006 | 04:37 PM
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The stuff for the cat, is that rod that sticks out from underneath the car, and comes up under the hood, and conects to the thing you took off, from intake manifold. That is easly pluged with silicone.

Don't Worry about the A/C stuff, just plug up the number one hole.

AS for what you did with the block off palte, did you use silicone when you put it back on, around the edges to prevent leaks? I also pluged up all the holes, that went to it as well, because I had the same problem as you.

Check to see if you have everything hooked up right. Did you plug up the holes in the Carb where the strange round device that is held in by 2 10mm bolts, on the side of the carb ?

could you also show uas a diagram or pick of your set up? it can be a very basic MS paint diagram, with lables.

Good luck, Ted.
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Old Mar 19, 2006 | 05:22 PM
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dont use silicon for the love of god!
most likely it will melt and cause more problems trhen you are willing to deal with.
make a block-off plate. unfortunatly i just sold my set. for ease just order a set of plates for 8.00US off of Racing beat.

as for the tubes they were incorperated into a thermal reactor which I am pretty sure only came on california rx7's 82 and older. after 82 they moved to the triple coverter and a fancy relay system.

idle will go down once you get proper blocking plates
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Old Mar 19, 2006 | 06:17 PM
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I was talking about high temp exhaust gasket sealing, silicone. Not crapy stuff. It is good for 475C
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Old Mar 20, 2006 | 02:39 AM
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Originally Posted by rotaries_only

as for the tubes they were incorperated into a thermal reactor which I am pretty sure only came on california rx7's 82 and older. after 82 they moved to the triple coverter and a fancy relay system.
I don't know what are you talking about, but the two "tubes" to the pre-cat and main cat have nothing to do with a thermal reactor. They exist to supply air to the cats so they can function properly.

Randokuky: look in the side of the intake manifold that faces the firewall. Alternatively, follow the hoses from the cats and see where they end up in the engine bay.
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Old Mar 20, 2006 | 03:15 AM
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The red piece in the diagram is what you're looking for.

Attached Thumbnails Help with rats nets-split-air-pipe.jpg  
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Old Mar 20, 2006 | 04:05 AM
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Old Mar 20, 2006 | 05:52 AM
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When I installed my block off plates I used Hylomar to seal the plates. I installed the block off plates 3 years ago and still no leaks. Woohoo! The bad part is hylomar is like 9 bucks for a small tube but well worth it.
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Old Mar 20, 2006 | 06:54 AM
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Should we leave the lines that go to the cat open?
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Old Mar 20, 2006 | 08:11 AM
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You should just remove the cats altogether. Replacement pipe or header - your choice depending on budget...
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Old Mar 20, 2006 | 06:40 PM
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When I have the $$$ I will in a heart beat lol
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Old Mar 20, 2006 | 07:06 PM
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Originally Posted by cdrad51
The red piece in the diagram is what you're looking for.


I blocked that elbow off with a plug, what does a block plate do that pluging the wholes on the Air Control Valve dont? I dont really like paying $10 extra just for something to go thru the mail, if your sure a blocking plate will fix the idel ill try to fab up another.

Last edited by Randokuky; Mar 20, 2006 at 07:08 PM.
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Old Mar 20, 2006 | 07:33 PM
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Also what about the shutter valve? I know I plug the hole that goes to the Air Cleaner what about the small hole to the right? Remeber im not running A/C so I pluged the first hole on the carb plate....


Also
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Old Mar 20, 2006 | 07:35 PM
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i got a spare ACV block off plate if you want it, its off a 84 SE but i think that they are all the same send me a pm

Last edited by 3rd and final 7; Mar 20, 2006 at 07:39 PM.
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Old Mar 20, 2006 | 07:54 PM
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Originally Posted by cdrad51
You should just remove the cats altogether. Replacement pipe or header - your choice depending on budget...
Yeah baby, that just answered my question. I was wondering if i could cut them out and weld in new pipes.
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Old Mar 20, 2006 | 10:42 PM
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Originally Posted by Randokuky
what does a block plate do that pluging the wholes on the Air Control Valve dont? I dont really like paying $10 extra just for something to go thru the mail, if your sure a blocking plate will fix the idel ill try to fab up another.
Nothing really. It's just neater if you remove the ACV and put a block off plate.

But you do have a vacuum leak somewhere. Gotta hunt it down and kill it.
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Old Mar 20, 2006 | 11:11 PM
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Originally Posted by Randokuky
Also what about the shutter valve? I know I plug the hole that goes to the Air Cleaner what about the small hole to the right? Remeber im not running A/C so I pluged the first hole on the carb plate....


Also
As mentioned in the tutorial, page 25, yes, you plug both ports of the shutter valve.

On the throttle opener (what you're pointing at in the pic), since you are not running a/c, you don't need it to work. But you don't need to plug it.
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Old Mar 20, 2006 | 11:18 PM
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Originally Posted by chedda_j
Yeah baby, that just answered my question. I was wondering if i could cut them out and weld in new pipes.
Oh yeah, you certainly can. As long as you don't have to pass emissions, you don't need those *******.
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Old Mar 20, 2006 | 11:37 PM
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whats emissions?

My straight piped honda, running on 91 farm gas, and totally devacced car wouldnt pass either. Just some cars need a CAT to run properly, glad that i dont need them. They are going to be vacating the premesis quickly.
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