Question about 1987 Mazda RX-7

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How do i change the apex seals in my 1992 mazda rx7

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  • Anonymous Oct 17, 2008

    water pumping out radiator and overheating

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Take apart the whole motor they are located on the corners of the rotors

Posted on Apr 04, 2009

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You have to remove and strip the whole engine down and re build it and well your in there new plate seals side seals bearings and oil seals wldnt go a miss.....

new zealand
0273308296
rebuilds
any porting
13.7mm dalz
3mm apex seals
custom buildz

Posted on Feb 19, 2009

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Hey you'll have to do a full teardown of the engine to replace apex seals

Posted on Jan 16, 2009

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Ive got a 13b series 4 rx7 needs seals done


yes! its the best time! and only time since the engine will be apart.

Feb 19, 2010 | 1989 Mazda RX-7

1 Answer

Just wondering if you can tell me how many cfm a 48ida flows


Mate.It pretty much flows the number.IE 500 holley is 500cfm.48,s are 480.Thats a big bit of gear for an rx7.Just make sure the metering pump for the oil injection into the carbs are upgraded,otherwise the motor will cook the apex seals every week.It would not hurt to up the oil pressure by 2 lb if you are going to rev the motor over 7400rpm.Are you putting side draught or down draught.Hope you go well!

Jan 21, 2010 | 1985 Mazda RX-7

2 Answers

87 rx7 floods, won't build compression. changed


sounds like you may have a leaking fuel injector. put a fuel pressure gauge on it and watch the pressure with the key on and with the vehicle sitting for an hour with the key off

Nov 23, 2009 | 1987 Mazda RX-7

1 Answer

What Seal kit for 2nd gen Rx7 FC Turbo II FC3S???


I would just replace the APEX seals because they are cheaper BUT unless you know alot about the rotary i wouldnt take the motor apart your self i would take it to someone and have then do it because the rotary motor is very tedious and everything almost has to be perfect.

Jun 09, 2009 | 1991 Mazda RX-7

2 Answers

89 Mazda RX7 water on spark plugs and oil and then overheats


Water on plugs?? There are not many places for it to come from.. Sure its not fuel? Need any rotory advice please ask. I have specialized in RX7's for over 13 years now.. zbrazelton@gmail.com

Apr 09, 2009 | 1987 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

I have a 85 mazda rx7 1.1 it floods so bad that it leaks ( it pours ) trough the catalyst and the muffler


Hold the gas peddle to the floor when starting. The carb does not add fuel until the engine is running. Don't pump it as the accelerator pump will pump fuel each time you do it. Cause of problem is your float inside your carburetor is not seating correctly and "dribbles" fuel while your pump runs. Basically it is leaking inside and needs rebuilding..

Mar 18, 2009 | 1985 Mazda RX-7

1 Answer

Rx7 Mazda 1989 non turbo


I tried a Solution used from a previous posting... The automatic transmission fluid, (ATF), trick.
After doing everything in the mainianace manual, without a positive outcome... I tried it..
3 capfulls in each trailing spark plug hole... but it must be after or just after the apex went past the hole...
remember turn the shaft manually until the apex passes.  Also remember their are six apex seals, 3 on the front rotor and 3 on the back, thats 18 cap fulls total.  Don't worry if some drips or pours out after putting it in the spark plug hole.  I did it with a med seringin.  but be careful the end could break off in the plug hole.(don't ask) Just make sure you do all six just after each apex.  Then take both leading plugs off and spray them with starter fluid and put them back just after you spray them.  This, I was told, was to make sure the car fires on the first start.  IT works.....
This is also a trick after having starting problems when the car floods.......
That why I waited so long to try it,  I did need it for flooding.....
This swells up the seal... they got dried out from sitting at least four years... ATF soaks into them and
helps the compression...
   
 

Feb 08, 2009 | 1989 Mazda RX-7

1 Answer

1987 MAZDA RX7


If it's over 170K it might just be super low compression that's the culprit. To find out I'll teach you the rotary engine mechanics secret weapon. Take out both the trailing plugs their the T1, and T2 plugs respectively. Now turn the engine by hand slowly watching the spark plug holes when you see an apex seal go by squirt a little transmission fluid into the plug hole, about 3 cap fulls is usually good enough. do this for both rotors remember there's 3 sides to each of them. Now just to be sure take the leading plugs out and spray them with carb cleaner to be sure they fire the first time around. Put all the plugs in their correct places, check the wires to be sure the leading coils and trailing coils are connected to the proper plugs. Then crank it over! If it runs like a brand new engine then its just worn out apex/side seals. This trick is also a great way to get rid of the carbon build up on the faces of your rotors. Hope that helps!

Nov 28, 2008 | 1987 Mazda RX-7

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