2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Coolant line coming from block

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Old Jul 12, 2008 | 10:30 AM
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Coolant line coming from block

Theirs a coolant line coming from the thermostat housing and one coming from the block right by primary fuel rail, can anyone PLEASE tell me where they are ment to run to.

Thanks
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Old Jul 12, 2008 | 10:32 AM
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If I'm thinking of the right ones they both go onto the UIM.
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Old Jul 12, 2008 | 10:37 AM
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Thanks I didnt realize the UIM was water cooled.
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Old Jul 12, 2008 | 10:42 AM
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Also theirs 2 small ovals with 2 bolts on each on the UIM that I cant seem to remember what to do with, Damn the car has been in pieces for too long.
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Old Jul 12, 2008 | 10:43 AM
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rather the LIM, The only 2 ports not blocked off
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Old Jul 12, 2008 | 10:45 AM
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Please describe better "ovals"???
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Old Jul 12, 2008 | 10:45 AM
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The Factory Service Manual can be found in the FAQ For FC thread. It contains all this information and more, and is an essential tool for any sort of service work that needs to be performed on these cars.

Additionally, the Haynes service manual for the 1986 thru 1991 RX-7 (both turbo and NA) can be found at most local auto parts stores or purchased from any good bookstore (ISBN number 1 56392 007 7). It is only about $25 and is a great quick reference for things like this. Not only does it contain most of the information in the FSM condensed into an easy to read format, but it includes full wiring diagrams as well.

These manuals will answer 99% of service related questions for the car and if you intend to do your own repair work, you will need at least one of them. Preferably both, since the FSM is a free download.
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Old Jul 12, 2008 | 10:46 AM
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Oh do you mean the actuator ports for your "5th & 6th" Ports??
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Old Jul 12, 2008 | 10:48 AM
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Originally Posted by Aaron Cake
The Factory Service Manual can be found in the FAQ For FC thread. It contains all this information and more, and is an essential tool for any sort of service work that needs to be performed on these cars.

Additionally, the Haynes service manual for the 1986 thru 1991 RX-7 (both turbo and NA) can be found at most local auto parts stores or purchased from any good bookstore (ISBN number 1 56392 007 7). It is only about $25 and is a great quick reference for things like this. Not only does it contain most of the information in the FSM condensed into an easy to read format, but it includes full wiring diagrams as well.

These manuals will answer 99% of service related questions for the car and if you intend to do your own repair work, you will need at least one of them. Preferably both, since the FSM is a free download.
True ^^^ but if you still cant figure **** out there are always people here to help.
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Old Jul 12, 2008 | 11:02 AM
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Its a turbo 2 no 5th and 6th ports, Their just 2 small openings with 2 studs out of each. To the left of where the air pump is blocked off, Directly above where the turbo connects to the downpipe.
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Old Jul 12, 2008 | 11:11 AM
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Yeah aaron, I looked in the FSM and I cant seem to find this,
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Old Jul 12, 2008 | 11:58 AM
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One is the coolant feed for the turbo, the other is for emissions.
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Old Jul 12, 2008 | 01:53 PM
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i think it goes to the acv valve on the UIM and routes to the waterump
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Old Jul 12, 2008 | 01:55 PM
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if u block off the acv valve you can pretty much just plug that coolant line from the rear iron plate and plug the line going to the waterpump..make it simple..
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Old Jul 12, 2008 | 02:06 PM
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Are they high pressure? Or will a nylon cap and a hose clamp do the job?
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Old Jul 12, 2008 | 05:11 PM
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i would find something that is not permanent type of plug, in case you want to put ur emissions back on, idont know if their are plugs that big? Just keep the coolant line on and plug the end of that line , or cut the line shorter and plug it with something, jb weld with some screw orsomething lol
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Old Jul 12, 2008 | 05:55 PM
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Jesus... WTF is going on here?

NO Water goes to the ACV. NONE... The nipple from the back of the T-stat area feeds the Thermowax on an N/A car. It should route from the rear of the housing to the BAC (thats just a bypass, the BAC does NOT use water either), then to the thermowax. The return should be on the block somewhere after the thermowax. If the nipple is directly underneath the Rad cap, then its for coolant overflow.
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Old Jul 14, 2008 | 12:10 PM
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http://rotaryresurrection.com/2ndgen..._emission3.jpg In this picture you can see the 2 smaller ports I am talking about, one is blocked off and the other is going to the turbo, Ive got the one going to the turbo now but the other one seems to be a long metal line venting neer my DP? Is this OK?
Thanks
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Old Jul 18, 2008 | 07:55 PM
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Please I still havent figured out these coolant ports, I am a turbo car not NA, it is directly under the thermostat and the other is on the transmission side of the engine right below the vac lines from the UIM.

PLEASE I need to get my car running.
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Old Jul 18, 2008 | 08:17 PM
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OK. The forward port is the coolant feed for the turbo.

The rear one goes to the split air pipe for the catalytic converter.
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