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what goes here?

Old 04-06-18, 03:13 PM
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what goes here?

13b rotary intake of some sort?
https://www.rx7club.com/g/album/9486688
check the picture, its circled in red.
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Old 04-06-18, 04:53 PM
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It's a coolant outlet to the heater core.

Why am I seeing 4 spark plugs per rotor?

Nevermind found a thread with that pic:
"While they look like spark plugs, they don't function like them. They are basically just elaborate grounds for dual post coils used on each plug or something to that effect."

Last edited by j_tso; 04-06-18 at 04:58 PM.
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Old 04-07-18, 06:15 PM
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Originally Posted by j_tso View Post
It's a coolant outlet to the heater core.

Why am I seeing 4 spark plugs per rotor?

Nevermind found a thread with that pic:
"While they look like spark plugs, they don't function like them. They are basically just elaborate grounds for dual post coils used on each plug or something to that effect."
is the heater core separate from the radiator? im doing an engine swap and dont know much about the engine outlets, cant seem to find a diagram
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Old 04-07-18, 07:59 PM
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Yep, the heater core is essentially a separate radiator that sits inside the car.

See attached pic for the coolant flow path.

I got that from one of the Training Manuals for the 2nd gen RX-7 on Foxed.ca

Also note 2nd and 3rd gen engines also have another outlet on top of the rear iron.
Attached Thumbnails what goes here?-coolantflow.jpg  

Last edited by j_tso; 04-07-18 at 08:03 PM.
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