RX7Club.com


Go Back   RX7Club.com > Generation Specific > 2nd Generation Specific (1986-1992)

Welcome to RX7Club.com!
Welcome to RX7Club.com,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to start new topics, reply to conversations, privately message other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join RX7Club.com today!


Reply
 
Thread Tools Display Modes
Old 08-13-06, 04:24 PM   #1
ultrataco
r o t a r y
 
ultrataco's Avatar
 
Trader Score: (2)

Join Date: Jun 2006
Location: Indiana
Posts: 607
I think I found my PD

I seem to be the only person here who has had trouble finding my pulsation dampener (damper? dampner?). I don't want to take off all the stuff on top of the engine until I know there is a problem.
I tried to take a picture of what I'm pretty sure is the pd. It doesn't have the white plastic piece on it. I cannot get my hand down there, and I can't see whatever is under it where gas would leak. Would gas leak onto the ground under the car?

It is out of focus in the photo, sorry. It was to dark down there for the camera to focus on it
This ad is not displayed to registered or logged-in members.
Register your free account today and become a member on RX7Club.com!
Attached Thumbnails
Click image for larger version

Name:	Copy of DSC_0629.JPG
Views:	124
Size:	44.2 KB
ID:	190415   Click image for larger version

Name:	PDclose.jpg
Views:	123
Size:	46.7 KB
ID:	190416  
ultrataco is offline   Reply With Quote
Old 08-13-06, 04:27 PM   #2
jgrts20
Who are you?
 
jgrts20's Avatar
 
Trader Score: (0)

Join Date: Mar 2003
Location: CenCal
Posts: 2,238
Send a message via AIM to jgrts20
nope-tell your new here:
http://www.rotaryresurrection.com/ro...pulsation.html

the PD is on your primary fuel rail. Good try though. Under the throttle body.
__________________
86 RX7 GXL
-= S O L D =-
jgrts20 is offline   Reply With Quote
Old 08-13-06, 04:37 PM   #3
darktritium
spazz!
 
darktritium's Avatar
 
Trader Score: (0)

Join Date: May 2006
Location: Knightdale, NC
Posts: 663
The thing looks like a dumbbell with some extra things on it. I need to change mine eventually.
darktritium is offline   Reply With Quote
Old 08-13-06, 04:40 PM   #4
ultrataco
r o t a r y
 
ultrataco's Avatar
 
Trader Score: (2)

Join Date: Jun 2006
Location: Indiana
Posts: 607
people keep saying this but nobody tells me where the primary fuel rail is
ultrataco is offline   Reply With Quote
Old 08-13-06, 04:47 PM   #5
Brody8877
불*면*증*
 
Brody8877's Avatar
 
Trader Score: (1)

Join Date: Sep 2005
Location: San Francisco
Posts: 1,423
Send a message via AIM to Brody8877
Quote:
Originally Posted by ultrataco
people keep saying this but nobody tells me where the primary fuel rail is
it is under the Upper Intake manifold to able to see it you have to take it off
Brody8877 is offline   Reply With Quote
Old 08-13-06, 04:49 PM   #6
jgrts20
Who are you?
 
jgrts20's Avatar
 
Trader Score: (0)

Join Date: Mar 2003
Location: CenCal
Posts: 2,238
Send a message via AIM to jgrts20
its under your throttle body, you cant really see it unless you take the TB off. On the diagram its the red circle by the fuel filter.
Attached Thumbnails
Click image for larger version

Name:	S4 turbo emissions removal.jpg
Views:	58
Size:	96.2 KB
ID:	190424  
__________________
86 RX7 GXL
-= S O L D =-

Last edited by jgrts20; 08-13-06 at 04:54 PM.
jgrts20 is offline   Reply With Quote
Old 08-13-06, 05:01 PM   #7
lupin
Rupanrx
 
lupin's Avatar
 
Trader Score: (2)

Join Date: May 2005
Location: Massachusetts/RI
Posts: 838
Send a message via AIM to lupin
on the 89 na it is the secondary fuel rail. You have to take off the throttle body, upper intake manifold and then you will see 2 lower fuel injectors and a rail that feeds fuel to them. This hole rail is the pd(it's really just on the end but won't come off).
lupin is offline   Reply With Quote
Old 08-13-06, 07:51 PM   #8
daten
Registered User.
 
daten's Avatar
 
Trader Score: (0)

Join Date: Mar 2005
Location: College Park, MD
Posts: 718
Send a message via ICQ to daten Send a message via AIM to daten
There are two fuel rails, a long one under the intake elbow (secondary rail) that connects to the throttlebody on an NA, and a short one under the upper intake manifold (primary rail).

On an S5 (89 - 91) the Fuel Pressure Regulator is on the secondary rail (long one), you can tell it apart from the PD because the FPR has a vacuum line attached to it.

The PD is on the end of the primary rail (short one under the intake manifolds) and does NOT have a vacuum hose.

On an S5 these are both welded onto the fuel rails.

Quote:
Originally Posted by lupin
on the 89 na it is the secondary fuel rail. You have to take off the throttle body, upper intake manifold and then you will see 2 lower fuel injectors and a rail that feeds fuel to them. This hole rail is the pd(it's really just on the end but won't come off).
That's the right spot, but you're describing the primary rail.
daten is offline   Reply With Quote
Old 08-13-06, 09:29 PM   #9
lupin
Rupanrx
 
lupin's Avatar
 
Trader Score: (2)

Join Date: May 2005
Location: Massachusetts/RI
Posts: 838
Send a message via AIM to lupin
Quote:
Originally Posted by daten
There are two fuel rails, a long one under the intake elbow (secondary rail) that connects to the throttlebody on an NA, and a short one under the upper intake manifold (primary rail).

On an S5 (89 - 91) the Fuel Pressure Regulator is on the secondary rail (long one), you can tell it apart from the PD because the FPR has a vacuum line attached to it.

The PD is on the end of the primary rail (short one under the intake manifolds) and does NOT have a vacuum hose.

On an S5 these are both welded onto the fuel rails.



That's the right spot, but you're describing the primary rail.
I patched my driveway and wasn't thinkin straight.
you are right, thx
lupin is offline   Reply With Quote
Old 08-13-06, 11:49 PM   #10
alexdimen
TANSTAFL
 
alexdimen's Avatar
 
Trader Score: (0)

Join Date: Oct 2003
Location: Richmond, Va.
Posts: 2,866
Send a message via AIM to alexdimen
look a little closer at the second picture guys. he found it... i'm not saying he can get to it as is, but he found it.
alexdimen is offline   Reply With Quote
Old 08-14-06, 01:31 AM   #11
Enthu
Rotary Ninja
 
Enthu's Avatar
 
Trader Score: (0)

Join Date: May 2001
Location: minneapolis MN
Posts: 918
S5 FPDs are welded to the primary fuel rail. They don't have the white piece of plastic on them as the S4s do. It looks like you found it, but you do need to remove the UIM to get to it.
Enthu is offline   Reply With Quote
Old 08-14-06, 09:13 AM   #12
jgrts20
Who are you?
 
jgrts20's Avatar
 
Trader Score: (0)

Join Date: Mar 2003
Location: CenCal
Posts: 2,238
Send a message via AIM to jgrts20
ok looking at the 2nd pic again, looks like you did find it. Sorry
__________________
86 RX7 GXL
-= S O L D =-
jgrts20 is offline   Reply With Quote
Old 08-14-06, 09:29 PM   #13
ultrataco
r o t a r y
 
ultrataco's Avatar
 
Trader Score: (2)

Join Date: Jun 2006
Location: Indiana
Posts: 607
so, if it was leaking, how would I know? would gasoline bespraying out of it? or just dripping where I can't see?
ultrataco is offline   Reply With Quote
Old 08-15-06, 08:17 AM   #14
My5ABaby
Rotaries confuse me
 
My5ABaby's Avatar
 
Trader Score: (0)

Join Date: May 2006
Location: Knoxville, TN
Posts: 4,120
There'd probably be a puddle under it.
My5ABaby is offline   Reply With Quote
Old 08-18-06, 01:02 PM   #15
ultrataco
r o t a r y
 
ultrataco's Avatar
 
Trader Score: (2)

Join Date: Jun 2006
Location: Indiana
Posts: 607
under the pd? If there was a puddle there, I wouldn't be able to see it.
ultrataco is offline   Reply With Quote
Old 08-18-06, 01:17 PM   #16
j9fd3s
a little amazing!
 
j9fd3s's Avatar
 
Trader Score: (0)

Join Date: Mar 2001
Location: http://www.k2rd.com
Posts: 8,546
Quote:
Originally Posted by ultrataco
so, if it was leaking, how would I know? would gasoline bespraying out of it? or just dripping where I can't see?
use your nose....
j9fd3s is online now   Reply With Quote
Old 08-18-06, 04:21 PM   #17
jgrts20
Who are you?
 
jgrts20's Avatar
 
Trader Score: (0)

Join Date: Mar 2003
Location: CenCal
Posts: 2,238
Send a message via AIM to jgrts20
Quote:
Originally Posted by j9fd3s
use your nose....
Gas vapors are what you should be worried about, if you smell gas better not light anything. Thats when it blows. The gas(in liquid form) is not dangerous.
__________________
86 RX7 GXL
-= S O L D =-
jgrts20 is offline   Reply With Quote
Old 08-19-06, 11:24 AM   #18
My5ABaby
Rotaries confuse me
 
My5ABaby's Avatar
 
Trader Score: (0)

Join Date: May 2006
Location: Knoxville, TN
Posts: 4,120
Quote:
Originally Posted by jgrts20
Gas vapors are what you should be worried about, if you smell gas better not light anything. Thats when it blows. The gas(in liquid form) is not dangerous.
Not AS dangerous.
My5ABaby is offline   Reply With Quote


Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Forum Jump


All times are GMT -5. The time now is 04:51 PM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2010, Jelsoft Enterprises Ltd.
All content Copyright © 2007 by Internet Brands, Inc.
Inactive Reminders By Mished.co.uk