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What is the timing for Mazda 12a Bridgeport? - Mazda Cars & Trucks

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1 Answer

Plug wire configuration

Quite easy actually. There are two rotors 1 - front and 2 - rear. there are two plugs per rotor Trailing - top and Leading - lower.
The distributor cap has letters and combination letters/numbers on it (if it does not you need to get a good quality cap) L and T and L1 T1 L2 T2
L is leading coil, T trail coil, pretty self explanatory from there
My recommendation from nearly 40 experience with rotary's is to use Mazda Mitsubishi Cap Rotor and NGK wires and plugs. Has been good enough for factory race teams also.
An issue with most aftermarket rotors is that they do not fit properly and can cause changes in timing and worse case, damage both cap and rotor.

Mar 29, 2014 | 1985 Mazda RX-7

2 Answers

I have 85 rx7 12a engine carb getting spark and fuel,it will turn but it won't start what could it be.

It takes 3 things for a car to run... spark, fuel, and air. Sounds like you should be looking for a problem with the air, IF it is getting spark and fuel. Food for thought.

Feb 29, 2012 | 1985 Mazda RX-7

1 Answer

I need the phone number for the Larry Myers dealer in Bridgeport, WV. I have tried the number given online (304-366-3311), and it doesn't work. Is there another number to call for service?

HI, Google search yeilded this address and phone number:
Larry Myers Subaru
750 Lodgeville Road
Bridgeport, WV 26330
(304) 848-6000
Hope that helps, Mike

Jun 21, 2011 | Hyundai Elantra Touring Cars & Trucks

1 Answer

On my 1985 rx7 12a does both leading and trailing spark plugs fire all the time?

The coils might be wire in reverse polarity. The FSM diagram shows that the B/W ground wires go to the terminals and the yellow striped wires go to the - terminals which is different than most.

Oct 08, 2010 | 1985 Mazda RX-7

1 Answer

How do i take a 12a mazda apart can someone send me a diagram or soemthing

I don't know what '12a' has to do with a 1995 Mazda 626 but if it helps, there is a manual available from Haynes for that car:
Mazda manual

Sep 07, 2009 | 1995 Mazda 626

1 Answer

Replace starter

96 probe, 2.0L 4 cylinder. Should be similar to 626 I think.

Starter Motor

Exploded View of the Starter Motor Mounting Components

  1. stu~us~en~file=ani_caut.gif~gen~ref.gif CAUTION: When servicing the starter motor or performing other underhood work in the vicinity of the starter motor (11002), be aware that the heavy gauge battery input lead at the starter solenoid is "electrically hot" at all times. A protective cap or boot is provided over this terminal (B-terminal) on all carlines and must be replaced after servicing. Be sure to disconnect the battery ground cable before servicing the starter motor.
    Disconnect the battery ground cable (14301).
  1. Remove the air cleaner (ACL) and the air cleaner to intake manifold tube (9B697). Refer to Section 03-12A for the procedures.
  1. Remove the two upper starter motor bolts.

  1. Raise and support the vehicle.
  1. Remove the intake manifold support bolts and the intake manifold support (9J444).

  1. Disconnect the S-terminal wire.
  1. Remove the B-terminal wire nut and disconnect the B-terminal wire.
  1. Remove the lower starter motor bolt.
  1. Remove the starter motor.

Aug 10, 2009 | 1995 Mazda 626

1 Answer

How to wirer to spark plug

Try this web site for the info.
I hope this works!
Good Luck .!

Aug 09, 2009 | 1983 Mazda RX-7

1 Answer

How to identify what engine I have

there are two models of engine in this year one is a 1.1 liter
and the other is a 1.3 liter both rotary engine
you can identify them like this

the 1.1L engine is a 4 brl carbureted engine
the 1.3L engine is fuel injection

yours is a 12a = 1.1 liter rotary carbureted engine
the 1.3l is a 13b engine code fuel injected

Have a great day !!!!


Dec 11, 2008 | 1984 Mazda RX-7

1 Answer

Mazda 12a

Maybe fuel pressure is too high, did your put in a bigger pump to keep up with that big old bridge port? If so, it may need regulated! I have a holley FPR on my stock port set to 2.5psi it has really helped it run smoothly. Hope that helps!

Oct 18, 2008 | 1984 Mazda RX-7

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