Question about 1987 Mazda RX-7

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13b turbo rx7 S6 overheating after we replaced the twin fans and Radiator and thermostat

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Make sure you use new coolant with this process. Dexcool is recommneded only Because the maintanance Interval is more than 100k miles.
Are the fans Switching on when the vehicle reaches Operating tempurature?
Do you use Higher viscosity oil for the engine, and allow for the trubo to cool off after hard runs?
Did you install the Thermostat correctly.
Most likely it might be the Coolant, Do not use pure water for cooling. It will evaperate eventaully even with a hihger psi radiator cap.

Posted on Jul 16, 2009

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Posted on Jan 02, 2017

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Losing boost!! I have a 1993 mazda rx7 13b twin turbo with the stock turbos. When i punch it my boost goes up to about 10psi. But bleeds off and i can head it blowing out. Was thinking it was blow off...


Have you checked all the tubing cuplings? When mine was doing that i had a cupling that would keep sliding off just enuff that it was letting out air and loosing me boost.

Mar 29, 2012 | 1993 Mazda RX-7

1 Answer

13B Rotary Firing order diagram


The 1984 Mazda RX7 has a Rotary Engine.
For the 1.1L

Firng Order:
1-2 (thats all folks!)
Cylinders:
__________
'......2.......'
'......1.......'
....[FAN]

Distributor:
.............(+)-screw
......2
1..........2
......1
(+)-screw

Aug 09, 2010 | 1984 Mazda RX-7

1 Answer

I have a 1989 mazda rx7 convertible automatic with the 13b rotary engine and im going to swap the engine and tranny for the 13b turbo engine and manual tranny,and also have ecu.is it hard to swap and how.


its not hard at all. as long as your good with your hands. and know the basics of your rx7. other then that everything bolts in. you just need a turbo driveshaft for sure. or they sell a custom driveshaft on mazdatrix.com so you can keep your N/A differential.

Apr 18, 2010 | 1989 Mazda RX-7

1 Answer

My 1996 Volvo 850 2.4 I5 non-turbo appears to be overheating. I replaced the Thermostat but it still appears to be overheating. How do I troubleshoot to see if it is the radiator or maybe the cooling fans?


first you need to check your cooling fan working you can do so by turning your a/c on if your a/c is working properly/if so turn off a/c and let car sit till overheat and see if fan kicks in.if not possible your fan circuit electrical or sensor related/and also check for air in your system bleed system good check for circulation open radiator cap.

Jan 13, 2010 | 1996 Volvo 850

1 Answer

The overheating light keeps coming on whenever i drive about 10 miles or more


Is this a turbo or diesel. Chech to see if your electric fans are turning. If their not turning one or both of the engine temp sensors might be faulty or the fans might have a blown fuse. If the fans are turning you might have a faulty thermostat not allowing fluid to flow into the radiator or the thermostat could be stuck open allowing too much flow and not giving the coolant enouphe time in the radiator to cool down. either way replace the thermostat. Hope this helps salve your issue.

Aug 18, 2009 | 2001 Volkswagen Beetle

1 Answer

I need a site where i can download a mazda rx7 13b turbo repair manual for free


www.onlinefreeebooks.net/pdf.../mazda+rx7+repair+manual/

Jul 19, 2009 | 1993 Mazda RX-7

2 Answers

Well i have a 1987 Mazda Rx7 with a 13b non-turbo


public library...Chilton or Haynes auto repair manuals or collisionrepairadvice.com


many of your questions can only be answered when the engine is apart and after visual examination.   Sorry I can't help more.

Mar 25, 2009 | 1987 Mazda RX-7

2 Answers

Overheating mitsubishi gto


Thermostat, problem perhaps, dirty radiator, look if one of the houses from the radiator are inflated with pressure, when hot, if You notice that, Your thermostat is gone the other way to see that is after the car is hot, the coolant suppose to circulate inside, has to move, perhaps YO need to let the air out of Your system after replacing the w/p, run the engine with radiator cap OFF till no more air bobbles comes out

Jan 22, 2009 | 1997 Mitsubishi 3000GT

2 Answers

1989 mazda rx7 turbo over heating


Hi and welcome to FixYa,

A couple of ideas you may want to explore:
  • the engine overheating after a shutdown could perhaps be addressed by installing a time delay off on the relay of the radiator fan. The idea is after absence of Ignition B+12 (engine off), the fan/relay should still be energized for a number of minutes so as to cool the radiator;
  • idling the engine for about 5 minutes before shutdown is a good practice. this enable the engine to cool slowly rather than an abrupt change in temperature of the external but the inside is still rather hot;
  • the opening of the thermostat is triggered by the temperature of the water above it not below (where the spring is);
  • in my country, where it is relatively always hot, some mechs remove the thermostat (of course not applicable in cold climates);
  • a more helpful idea would be the installation of an electric water pump in lieu of the mechanical one. There are several after market models. Pls try here, here or here for a start;
  • it is also possible to wire the electric water pump to still run for a minute or more similar to the proposed time delay for the radiator fan above.

Good luck and Thank you for using FixYa. Happy Holidays.

Dec 07, 2008 | 1989 Mazda RX-7

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