Tan and Purple 550s

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Apr 17, 2008 | 10:10 AM

#26

*TOUCH*

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From: Norfolk, VA

injectors

here are the ones i just got, and i WOULD just read the numbers, but they are all badly melted and illegible. notice in the second pic, there is a needle like thing coming out of the bottom, dunno what that it?

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Apr 17, 2008 | 11:47 AM

#27

RETed

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From: n

Quote:

Originally Posted by *TOUCH*

notice in the second pic, there is a needle like thing coming out of the bottom, dunno what that it?

That's a normal part of the fuel injector.
Think of it as a magnetically controlled needle valve...

-Ted

Apr 17, 2008 | 11:55 AM

#28

j9fd3s

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From: https://www2.mazda.com/en/100th/

Quote:

Originally Posted by SCCAITS

The FAQ is wrong or Rotary Resurrection is wrong. What you said and what is below does not match up.

http://www.rotaryresurrection.com/2n...ctor_info.html

Year type impedance plug style plug notch position flow rating color part number
••
84-85 13B NT low square center 680cc orange 195500-0900
••
86-87 13B NT low square center 460cc red 195500-1350
••
86-87 13BT low square center 550cc tan 195500-1370
••
88 13B NT high square offset 460cc purple 195500-1350
••
88 13BT high square offset 550cc purple 195500-1370
••
89-91 13B NT high oval center 460cc red 195500-2010
••
89-91 13BT high oval center 550cc purple 195500-2020

yes the FAQ is wrong, and we've known that for at least a year....

Apr 17, 2008 | 12:08 PM

#29

Spectator

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This is really easy. On-center plugs - Low impedance. Off-center plug, high impedance.

Spec.

Apr 17, 2008 | 01:18 PM

#30

*TOUCH*

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From: Norfolk, VA

thanks ted. its just that normally there seems to be a smooth plastic-like thing on the bottom. do you NEED this part, or can these injectors just go rite in as-is?

Apr 17, 2008 | 01:29 PM

#31

*TOUCH*

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From: Norfolk, VA

here are some with the different "smooth" bottom i was talking about

Apr 17, 2008 | 03:29 PM

#32

RETed

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From: n

Quote:

Originally Posted by *TOUCH*

thanks ted. its just that normally there seems to be a smooth plastic-like thing on the bottom. do you NEED this part, or can these injectors just go rite in as-is?

Yes, I believe that part is called a pintle cap.
It does come off, but it's on there pretty tight.

I'd keep it on if possible, but you do not really need it.
I'd keep the primary ones on, as the tips stick pretty close into the airflow.
The secondaries do not, so you don't need them for these.
They are just protection to keep the tips safe in case debris gets blown into the fuel injector (tip).

-Ted