Nc intake sucking air.

Engines, Transmissions & Final Drive questions and answers

Moderators: timk, Stu, zombie, Andrew, The American, Lokiel, -alex, miata, StanTheMan, greenMachine, ManiacLachy, Daffy

ansellpa
Fast Driver
Posts: 116
Joined: Thu Jul 19, 2012 2:53 pm

Nc intake sucking air.

Postby ansellpa » Wed Nov 21, 2012 10:28 pm

Does anyone have an photo of the nc intake manifold?
I am building a race car and dice taking delivery I have noticed it sucking air through a small hole that I think a vacuum line attaches to?
Under the main engine cover in the plastic intake manifold, would only take a small hose.
Not sure what this attaches to.
I have removed the rest of the stock intake system from the throttle body forward and don't remember pulling a hose off it.

And ideas? Currently I have just got a small bolt in it to plug it up

ansellpa
Fast Driver
Posts: 116
Joined: Thu Jul 19, 2012 2:53 pm

Re: Nc intake sucking air.

Postby ansellpa » Wed Nov 21, 2012 10:47 pm


User avatar
Charlie Brown
Speed Racer
Posts: 2623
Joined: Mon Apr 28, 2003 11:00 am
Vehicle: NC
Location: Sydney, Just out of Dragon Territory over the bridge in the "Shire"
Contact:

Re: Nc intake sucking air.

Postby Charlie Brown » Thu Nov 22, 2012 8:49 am

Sorry I can't connect to your drop box. Does this help?

Image
Image

Wakefield 1:09.13 Eastern Creek GP 1:50.198 Ext 2:17.538 Sth 1:02.9003
Phillip Is 1:58.50 Winton Short 1:10.7 Lakeside 1:05.7711 MDTC 45.20

User avatar
JBT
Speed Racer
Posts: 7946
Joined: Tue Jun 03, 2003 11:00 am
Vehicle: NC
Location: Brisbane

Re: Nc intake sucking air.

Postby JBT » Thu Nov 22, 2012 9:27 am

Do these help? Gee, I gotta clean that dust off before the next concours :roll: .

Image
Image

The screw drivers in the photos below is pointing to a tube that looks like it connects somewhere behind the black thing on the annodised bracket and then seems to go with another tube to the rear of the engine...and then??

Image
Image
Image

User avatar
Charlie Brown
Speed Racer
Posts: 2623
Joined: Mon Apr 28, 2003 11:00 am
Vehicle: NC
Location: Sydney, Just out of Dragon Territory over the bridge in the "Shire"
Contact:

Re: Nc intake sucking air.

Postby Charlie Brown » Thu Nov 22, 2012 10:46 am

The hose to the right of the disconnected red faced plug?

Image

Which is the tube that sits hidden behind the plug (above) in the bottom right of this photo.

Image
Image

Wakefield 1:09.13 Eastern Creek GP 1:50.198 Ext 2:17.538 Sth 1:02.9003
Phillip Is 1:58.50 Winton Short 1:10.7 Lakeside 1:05.7711 MDTC 45.20

ansellpa
Fast Driver
Posts: 116
Joined: Thu Jul 19, 2012 2:53 pm

Re: Nc intake sucking air.

Postby ansellpa » Thu Nov 22, 2012 11:57 am

thanks JBT, your top photo shows that I am missing something.
Now to find out what it is!!!

ansellpa
Fast Driver
Posts: 116
Joined: Thu Jul 19, 2012 2:53 pm

Re: Nc intake sucking air.

Postby ansellpa » Thu Nov 22, 2012 12:20 pm

Charlie Brown wrote:The hose to the right of the disconnected red faced plug?

Image

Which is the tube that sits hidden behind the plug (above) in the bottom right of this photo.

Image




Actually I think you are onto something with that.
Where do those hoses go??

User avatar
JBT
Speed Racer
Posts: 7946
Joined: Tue Jun 03, 2003 11:00 am
Vehicle: NC
Location: Brisbane

Re: Nc intake sucking air.

Postby JBT » Thu Nov 22, 2012 2:15 pm

Where do those hoses go??


JBT wrote:The screw drivers in the photos below are pointing to a tube that looks like it connects somewhere behind the black thing on the annodised bracket and then seems to go with another tube to the rear of the engine...and then??

Image
Image

"the black thing on the annodised bracket" seems to be the Variable Intake Air Solenoid Valve and the PCV valve is also nearby.

Read this and it may help you find where it used to go: http://www.mellens.net/mazda/Mazda-Miata-2006-2007/intake_air.pdf
Image

ansellpa
Fast Driver
Posts: 116
Joined: Thu Jul 19, 2012 2:53 pm

Re: Nc intake sucking air.

Postby ansellpa » Thu Nov 22, 2012 3:44 pm

you are the best! thanks for the link!!!!


Return to “MX5 Engines, Transmission & Final Drive”

Who is online

Users browsing this forum: No registered users and 79 guests